Appendix E1 

Mob6.2.03 Inventories and Documentation 

Appendix E1 - Page Number:

1
National Capital Region Transportation Planning Board

777 North Capitol Street, N.E., Suite 300, Washington, D.C. 20002-4290 (202) 962-3310 Fax: (202) 962-3202 TDD: (202) 962-3213 

MEMORANDUM

March 8, 2007 

To: Joan Rohlfs 

From: Mike Clifford 

Subject: Mobile source emissions inventories for the 8-hour ozone standard state 

implementation plan 

Introduction 

This memo transmits the final mobile source emissions inventories developed for the 8-hour 

ozone standard state implementation plan (SIP) for the Washington non-attainment region, and 

documents the technical methods applied in that process. 

Each inventory is comprised of two major categories: network and off-network. These main 

categories are broken down by trip component. The fundamental emissions calculation in each 

category represents emissions as the product of a travel element and an emissions rate associated 

with that travel. Exhibit 1 illustrates the basic approach. For example, VMT (in miles per day) 

multiplied by a VOC or NOx emissions rate (in grams per mile) yields emissions (in grams, 

which is aggregated to tons per day). Each of the travel categories as well as subcategories is 

described in more detail in the following chapters. In addition emissions associated with 

diurnals and resting loss, transit and school bus, and auto access to transit are described in 

separate technical memos and are attached as Appendices E-G. Exhibit 2 is a map of the 8-hour 

ozone non-attainment area. 

Network Components 

Network Development

Since 2008 and 2009 were not included as milestone years for the air quality analysis of the 2005 

CLRP and the FY2006-2011 TIP, staff sent out a separate request for projects associated with 

these years. All project submissions were reviewed and organized by DTP staff into 

transportation networks for appropriate forecast years. A list of projects along with a memo from 

Jane Posey provides details associated with this task (see Attachment A). 

Appendix E1 - Page Number:

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2

Travel Demand

The travel demand component for this work was based upon the execution of the COG/TPB's 

Version 2.1D#50 travel forecasting process, see COG/TPB Travel Forecasting Model, Version 

2.1D#50 User's Guide (Report), November 17, 2004. Inputs to the process include Round 7.0 

Cooperative Forecast land activity assumptions, and plan and program network inputs adopted 

by the TPB in October 19, 2005 and as modified according to the updates documented in 

Attachment A. Exhibits 3-A and 3-B summarize the jurisdictional household and employment 

data input to the modeling process; Exhibits 3-C and 3-D summarize the resulting vehicle trips 

and VMT outputs. 

Emissions Factors

COG/DEP staff developed all emission factors associated with this project and forwarded them 

to DTP staff for quality assurance and for the final calculation of emissions. Factors were 

developed using EPA’s Mobile6 emissions factor model (User’s Guide to Mobile6.2, EPA 

September 2003). Exhibits 4 and 5 for VOC and NOx respectively, illustrate the emission factors 

developed and applied in this process. Inputs were examined in detail and updated as 

appropriate to reflect new data or procedures. For example, state specific values associated with 

REBUILD EFFECTS, a measure that affects NOx emissions, were introduced for the first time 

with this current analysis. As with previous analysis, VMT mix percentages consistent with the 

vehicle types in the Washington region were developed using guidance prepared by E.H.Pechan 

staff. Details of this and other region-specific inputs are detailed in a memo: “1990 and 2005 

MOBILE Input Documentation”, January 27, 2003. This document is contained in the Appendix 

D of the Air Quality Conformity Determination of the 2005 Constrained Long Range Plan and 

the FY 2006-2011 Transportation Improvement Program for the Washington Metropolitan 

Region, October 19, 2005. 

While the majority of updates to inputs involved in emission factor development were associated 

with EPA’s Mobile6 emissions factor model, one aspect of the updated emissions factor 

development process deserves special mention - the allocation of vehicle registration data by 

vehicle type. The allocation of vehicle type plays a vital role in developing jurisdiction-specific 

VMT mix percent, i.e., the amount of travel occurring in the Washington area by type of vehicle. 

In the past, VMT mix percents were prepared by regional DMV and MVA staff by taking raw 

vehicle registration data files and aggregating to eight vehicle types based on Mobile model 

defaults to arrive at eight vehicle types. Currently, DTP staff is using software to identify each 

vehicle type and allocate these types into the 28 types now required by the Mobile model. A full 

report detailing the steps used in the application of the Vehicle Identification Number (VIN) 

decoder for the production of VMT mix percents is attached as Attachment B. 

The methodology for developing jurisdiction-specific VMT mix and the application of the 

resulting VMT mix is described in detail in the 1/27/2003 E. H. Pechan memo. It is a significant 

improvement over past methods in that it incorporates the best of both local and national data 

and trends, reflecting: (1) the use of local vehicle registration data to develop VMT 

characteristics for the full 28 vehicle types required by the Mobile6 model, and (2) the changes 

Appendix E1 - Page Number:

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3

in VMT mix occurring through time and reflected within the Mobile6 model, and (3) 

adjustments to reflect the overall split between light duty and heavy duty vehicles specific to the 

Washington region. The new process is therefore a more accurate one in estimating VMT mix 

for both base year and forecast year conditions and should therefore lead to better estimates for 

the resulting emissions factors in each case as well. Final inputs and parameters specifications 

are contained in Attachment C. 

Network Emissions via Post-Processor

Network emissions are calculated based on modeled trips and VMT, combined with emissions 

factors, using COG/TPB’s emissions post-processor. Attachment D is a memo entitled “Mobile 

Emissions Post-Processor Description and Results” written by Ronald Milone of COG/DTP staff 

that describes in detail the activities of the post-processor. Generally, the post-processor is 

comprised of a series of programs that calculate emissions by each component of a trip cycle: 

start, running and destination. This work was performed for each of the required analysis years. 

One of the recent updates mentioned in Ron Milone’s memo is the automated process for 

computing local/off-network emissions. Although VMT associated with local roads is not part of 

our network system, the post-processor was updated to incorporate these calculations, as 

previously these emissions were part of the off-network group. 

Off-Network Components 

These separate calculations represent additional mobile source emissions which are computed 

offline, via spreadsheet methods. Separate emissions estimates are prepared for the following 

categories: diurnal and resting loss, school and transit buses, and auto access to transit. Each is 

described in more detail in the attached technical memos. 

Results

Exhibit 6 reflects the aggregate results following execution of the programs. The exhibit shows 

network emissions by trip cycle component, and off-network emissions by category, for each 

analysis years (2002, 2008, and 2009) and scenario (uncontrolled, controlled). Exhibits 7 and 8 

present the same data by District of Columbia, Maryland, and Virginia totals, for VOC and NOx 

respectively. 

Following: 

Exhibits 1 - 8 

Attachments: 

A. Jane Posey memo on projects solicitation for 2008 and 2009 conditions 1/25/2007 

B. Daivamani Sivasailam memo on VIN decoder 05/10/2006 

C. Sunil Kumar memo on Emissions Factor Inputs and Development 

Appendix E1 - Page Number:

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4

D. R. Milone (COG/TPB) memo on Emissions Post-Processor, 09/19/2006 

E. Eulalie Lucas memo on Diurnal and Resting Loss Emissions 

F. Jane Posey memo on Transit and School Bus Emissions 

G. Jane Posey memo on Auto Access to Transit Emissions 

Appendix E1 - Page Number:

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 5 

EXHIBIT 1

Analysis Structure for On-Road Mobile Source Emissions

 

 Transportation Emission 

 Component X Factor = Emissions

A. Network 1. Trip origins Cold start rate Startup 

 (g/trip) 

 2. VMT Stabilized rate Running 

 (g/mile) 

 3. Trip destinations Hot soak Hot soak 

 (g/trip) 

 

 4. Local Road VMT Stabilized Rate Running 

 (g/mile) 

B. Off-Network 5. Number of vehicles Diurnal rate Diurnal 

 (gasoline fueled) (g/day) evaporative 

 

 6. Number of vehicles Resting loss Resting loss 

 (gasoline fueled) (g/day) 

 7. Auto access to transit Travel components Startup, running, 

 (above) hot soak 

 8. School & transit bus VMT (HDDV) Stabilized rate Running 

 (g/mile) 

 

Appendix E1 - Page Number:

6
 6 

Washington 

Berkeley 

 WV

Frederick 

Carroll 

Baltimore Co.

Harford 

Anne Arundel 

Howard 

Montgomery 

Loudoun 

Jefferson 

 WV

Clarke 

Warren 

Fauquier 

Culpeper 

Spotsylvania

Stafford 

King George 

Charles 

St Mary's 

Calvert 

Prince George's 

Fairfax Co.

Prince William 

DC

Arlington 

Alexandria

Baltimore

 City

EXHIBIT 2

Washington, D.C. - Maryland - Virginia

8-Hour Ozone Non-Attainment Area

N

W E

S

Modeled Area

8-hour ozone non-attainment area

Appendix E1 - Page Number:

7
Exhibit 3-A

 8-Hour Ozone Standard SIP

Household Data 

Jurisdiction 2002 2008 2009

D.C. 259,981 249,809 262,648 

MONTGOMERY 358,215 330,970 362,813 

PR.GEORGES 319,018 299,108 321,683 

ARLINGTON 96,604 89,000 98,090 

ALEXANDRIA 69,104 63,662 70,037 

FAIRFAX 411,888 374,148 418,950 

LOUDOUN 102,614 70,953 107,637 

PR. WILLIAM 149,575 119,778 154,461 

FREDERICK 84,423 73,833 86,066 

CHARLES 50,621 44,286 51,427 

CALVERT 29,926 26,570 30,487 

TOTAL 1,931,969 1,742,117 1,964,299 

SOURCE:

MWCOG Round 7.0 Cooperative Forecasts

7

Appendix E1 - Page Number:

8
Exhibit 3-B

 8-Hour Ozone Standard SIP

Employment Data

Jurisdiction 2002 2008 2009

D.C. 768,172 744,155 775,885 

MONTGOMERY 524,139 481,693 533,131 

PR.GEORGES 380,347 349,356 386,614 

ARLINGTON 208,784 187,633 213,311 

ALEXANDRIA 110,190 95,800 111,722 

FAIRFAX 691,903 624,843 709,453 

LOUDOUN 141,313 103,376 147,520 

PR. WILLIAM 149,781 127,076 153,748 

FREDERICK 134,314 106,647 138,361 

CHARLES 60,313 47,700 61,602 

CALVERT 31,497 25,456 32,199 

TOTAL 3,200,753 2,893,735 3,263,546 

SOURCE:

MWCOG Round 7.0 Cooperative Forecasts

8

Appendix E1 - Page Number:

9
Exhibit 3-C

 8-Hour Ozone Standard SIP

Vehicle Trips by Jurisdiction

Jurisdiction 2002 2008 2009

D.C. 1,544,778 1,524,387 1,554,043 

MONTGOMERY 3,172,264 2,931,156 3,208,798 

PR.GEORGES 2,391,291 2,247,475 2,411,947 

ARLINGTON 806,283 744,971 816,614 

ALEXANDRIA 503,888 462,169 509,174 

FAIRFAX 3,768,468 3,434,342 3,831,421 

LOUDOUN 897,975 633,387 938,601 

PR. WILLIAM 1,022,878 829,817 1,056,468 

FREDERICK 724,079 617,020 739,018 

CHARLES 417,946 362,839 424,775 

CALVERT 225,991 193,779 230,993 

TOTAL 15,475,841 13,981,342 15,721,852 

Vehicle Trips from the 2005 CLRP and the FY2006-2011 TIP

Travel Demand Model: COG\TPB Version 2.1D #50

Land Activity Forecast : Round 7.0 Cooperative forecast

9

Appendix E1 - Page Number:

10
JUR: 2002 2008 2009

DC 10,930,918 11,290,310 11,346,617

 Mtg 22,726,837 23,819,759 24,016,722

 PG 24,258,081 25,348,041 25,761,757

 Cal 1,556,439 1,791,372 1,806,436

 Chs 2,766,823 3,154,576 3,206,941

 Frd 9,264,153 10,616,107 10,881,277

 Arl 4,978,853 5,074,936 5,094,851

 Alx 2,812,033 2,937,854 3,045,680

 Ffx 30,224,976 31,984,450 32,467,303

 Ldn 6,080,175 7,855,974 8,094,039

 PW 9,146,026 10,637,527 10,876,847

Total 124,745,314 134,510,906 136,598,470

Vehicle Miles of Travel(VMT) from the 2005 CLRP and the FY2006-2011 TIP

Travel Demand Model: COG\TPB Version 2.1D #50

Land Activity Forecast : Round 7.0 Cooperative forecast

Attachment 3-D

8-Hour Ozone Standard SIP

VMT by Jurisdiction

10

Appendix E1 - Page Number:

11
2002-08-09 Plots-SIP 07.xls 2/27/2007 11

0.00.51.01.52.02.53.0

5 10 15 20 25 30 35 40 45 50 55 60 

speed

 grams per mile2002 2008 Uncon

2008 Contro2009 Uncon2009 Contro

EXHIBIT 4

2002-2009 VOC COMPOSITE MOBILE6.2 RUNNING EMISS

FOR DISTRICT OF COLUMBIA

FREEWAY

Appendix E1 - Page Number:12
2002-08-09 Plots-SIP 07.xls 2/27/2007 12

0.00.51.01.52.02.53.03.5

5 10 15 20 25 30 35 40 45 50 55 60 

speed

 grams per mile

20022008 Un2008 Co2009 Un2009 Co

EXHIBIT 5

2002-2009 NOx COMPOSITE MOBILE6.2 RUNNING EMISSI

FOR DISTRICT OF COLUMBIA

FREEWAY

Appendix E1 - Page Number:13
VOC NOx VOC NOx VOC NOx VOC NOx VOC N

I Network 

Start 24.77 12.58 15.27 9.16 12.83 7.23 14.79 9.08 11.88 Running 55.26 229.04 33.36 161.12 30.71 135.55 31.59 155.50 28.62 1Soak 11.26 --------- 10.31 ---------- 10.06 ---------- 9.99 --------- 9.71 ----

II Off-Network 

Diurnal 2.36 ---------- 2.04 ------------ 1.90 ------------ 2.01 ---------- 1.84 ----Resting Loss 11.93 ---------- 9.26 ----------- 9.03 ----------- 8.91 ---------- 8.59 ----Local Roads 9.33 11.16 5.49 8.61 5.11 6.99 5.16 8.47 4.75 School Buses 0.42 5.97 0.40 5.34 0.40 5.23 0.39 5.14 0.38 Transit Buses 0.38 6.43 0.22 4.64 0.22 4.42 0.23 4.89 0.23 Auto Access 1.24 1.47 0.80 1.10 0.72 0.88 0.77 1.08 0.68 Total 116.94 266.65 77.17 189.97 70.98 160.30 73.85 184.16 66.68 12008 Uncontrolled: 2002 IM, 2002 NOx Rebuild values, No Tier 2, No HDDV Rule, 2008 RDT/DSF/VMT Mix/

2009 Uncontrolled: 2002 IM, 2002 NOx Rebuild values, No Tier 2, No HDDV Rule, 2009 RDT/DSF/VMT Mix/

Exhibit 6

 8-Hour Ozone Standard SIP

 Mobile Source Emissions Inventories

(Tons/Day)

 Base 2002 2008 Controlled 2009 Contro

2008 Uncontrolled 2009 Uncontrolled

13

Appendix E1 - Page Number:14
Uncontrolled Controlled Uncontrolled 

2002 Base 2008 2008 2009 

District of Columbia 13.09 7.99 7.47 7.52 Maryland 56.13 36.56 33.86 34.97 Virginia 47.71 32.62 29.65 31.36 Total 116.94 77.17 70.98 73.85 

(Tons/Day)

Jurisdiction

Exhibit 7

8-Hour Ozone Standard SIP

VOC Mobile Emissions Inventories

 Rate of Progress and Attainment

14

Appendix E1 - Page Number:15
Uncontrolled Controlled Uncontrolled Co

2002 Base 2008 2008 2009 

District of Columbia 23.70 17.36 15.25 16.89 Maryland 132.27 92.51 77.85 89.74 Virginia 110.68 80.10 67.20 77.53 Total 266.65 189.97 160.30 184.16 

(Tons/Day)

Jurisdiction

Exhibit 8

8-Hour Ozone Standard SIP

NOx Mobile Emissions Inventories

 Rate of Progress and Attainment

15

Appendix E1 - Page Number:16
ATTACHMENT A 

Appendix E1 - Page Number:

17
ATTACHMENT A 

 A-1 

National Capital Region Transportation Planning Board

777 North Capitol Street, N.E., Suite 300, Washington, D.C. 20002-4290 (202) 962-3310 Fax: (202) 962-3202

MEMORANDUM 

January 25, 2007 

TO: Files 

FROM: Jane A. Posey 

 Senior Transportation Engineer 

SUBJECT: 2008 and 2009 Network Development for 8-Hour Ozone SIP 

Because the schedule for the development of the 8-Hour Ozone SIP networks did 

not correspond with the development of conformity networks, staff requested that 

the TPB Technical Committee review the conformity project input table to assure 

accuracy of project completion dates. The letter requesting this review, with the 

conformity project input table attached, went to the Technical Committee at the 

November 4, 2005 meeting. Staff requested that the implementing agencies review 

project inputs to assure that the project completion dates were accurate in light of 

funding availability at that time. Staff received a few updates which were included 

in the 2008 and 2009 networks developed for the SIP. The letter requesting review 

is included as Attachment A. The updated project input table is included as 

Attachment B. 

C:\USER\07CONF\SIP network development.doc 

Appendix E1 - Page Number:

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A-2

Appendix E1 - Page Number:

19
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

District of Columbia

DCDOT

Southeast/Southwest Frwy Reversible Lanes 14th Street Bridges Pennsylvania Ave. SE 

DCDOT Construct Foxhall Road, N.W. W Place Calvert Street 

DCDOT Construct Klingle Road Reconstruction Porter Street Woodley Road DCDOT Construct Minnesota Ave. NE ext. Sheriff Rd Meade St. N.E. 

MarylandMDOT Freeway

MDSHA MI2r ReconstrucApproved I-270

Interchange at MD 117 including park and ride lot 11

MDSHA MI2n Recon/Con Approved I-270 (East Spur)

Rockledge Dr. Connector and MD 187 11

MDSHA MI2l Recon/Con Approved I-270 (West Spur)

Interchanges at Democracy Blvd and Westlake Terrace 11

MDSHA MI4c Construct Approved I-70 (Phase IIA) MD 85 Extended/MD 355 22MDSHA VA Widen Approved

I-95/I-495 Woodrow Wilson Bridge MD 210 Interchange Virginia Line 1 1 

MDOT Primary

MDSHA MP4k Construct Approved

MD 5 Relocated at Hughesville

End of divided highway south of Hughesville Hughesville 0 5 

MDSHA Upgrade approved US 29 (Columbia Pike) MD 198 2 5 MDSHA Upgrade approved US 29 (Columbia Pike) Briggs Chaney Road 2 5 MDSHA Upgrade Approved US 29 (Columbia Pike) Randolph Road 2 5 MDSHA FP1B Construct N/A MD 80/MD 355 Relocated South of Urbana North of Urbana 0 2 

MDOT Secondary

MDSHA MS33 Widen N/A MD 27 MD 355 A 305 2 2 

Facility 

c6hwy0720_updated for SIP.xls 2/27/2007 A-3

Appendix E1 - Page Number:20
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

MDSHA MS3d Widen Approved MD 28 (Darnestown Road) Riffle Ford Road

Great Seneca Highway (MD 119) 3 3 

MDSHA PGS6 Construct Approved

MD 212 Relocated (Ammendale/Virginia Manor US 1 I-95 3 2 

MDSHA MS30 Widen/Con Approved MD 414 Extended MD 210 I-295 0 2 MDSHA MS18i Widen Approved MD 450 (Annapolis Road) Whitfield Chapel Road Seabrook Road 2 2 MDSHA MS18h Widen Approved MD 450 (Annapolis Road) MD 193 Stonybrook Drive 2 2 

Montgomery County

Mont.Co. nrs Construct Burtonsville Access Rd. MD 198 School Success Rd. 04

Mont.Co. MC38a Construct Citadel Avenue Extended

dead end of existing road south of Marinelli Road Nicholson Lane 0 4 

Mont.Co. Study

M-83 (with MD 118 Ext. and Middlebrook Rd. Ext. widening projects below) MD 27 (Ridge Road) Montgomery Village Avenue 0 2 

Mont.Co. MC15 Construct N/A Montrose Parkway West

Montrose Road (Tower Oaks Blvd.) old' Old Georgetown Road 0 2 

Mont.Co. MC30 Construct Nebel St Extended Randolph Rd Bou Ave/Chapman Ave 03Mont.Co. MC28 Construct N/A Stringtown Rd. Ext. I270/ MD 121 int.

existing Stringtown Rd. @ MD 355 0 3 

Mont.Co. MC22 Construct Valley Park Dr. e.of MD 27 exist. Valley Park Dr. 03

Mont.Co. MC13 Construct Woodfield Rd.( MD 124 Ext.) 1200' North of MD 108 MD 27 02

Prince Georges County

PG Co. PGS6 Widen N/A

Ammendale/Virginia Manor Road I-95 west of US 1 3 3 

PG Co. PGS74a Widen N/A Bell Station Road Glenn Dale Road (MD 193) Annapolis Road (MD 450) 44PG Co. PGS74b Construct N/A Bell Station Road Annapolis Road (MD 450) Church Road 0 4 PG Co. PGS11 Widen N/A Brightseat Road Sheriff road MD 214 4 4 

c6hwy0720_updated for SIP.xls 2/27/2007 A-4

Appendix E1 - Page Number:21
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

PG Co. PGS16a Construct N/A Campus Way North Lake Arbor Way south of Lottsford Road 0 4 

PG Co. PGS18 Widen N/A Church Road Oak Grove Road Annapolis Road (MD 450) 4 4 PG Co. PGS21a widen/cons N/A Contee Road US 1 Van Dusen Road 3 3 PG Co. PGS21b Widen N/A Contee Road Briarwood Drive US 1 4 4 PG Co. PGS45 Widen N/A Mitchellville Road Mount Oak Road Collington Road (MD 197) 4 4 PG Co. Construct N/A

National Harbor Main Circulation Roads I-95/I-295 Interchange

Waterfront Parcel, National Harbor 0 4 

PG Co. PGS47 Widen N/A

Oak Grove and Leeland Roads Watkins Park Road (MD 193)

Robert Crain Highway (US 301) 4 4 

PG Co. Construct

Regency Parkway/ Regency Lane Regency Lane Hil-Mar Drive 04

PG Co. PGS55a Widen N/A Ritchie Marlboro Road Ritchie Rd White House Road 3 3 PG Co. PGS56a Widen Approved Ritchie Road/Forestville Road Alberta Drive MD 4 Pennsylvania Avenue 4 4 PG Co. PGS56e Widen N/A Ritchie Road/Forestville Road Alberta Drive Edgeworth Drive 4 4 PG Co. PGS62a Widen N/A Suitland Road Allentown Road (MD 337) Suitland Parkway 3 3 PG Co. PGS64 Widen N/A Surratts Road Beverly Avenue Brandywine Road 4 4 PG Co. PGP5b Construct N/A

US 50/Columbia Park Road Ramp

eastbound ramp Cheverly vicinity 5 5 

PG Co. PGS42 Widen N/A Woodyard Road (MD 223) Rosaryville Road Dower House Road 2 2 Fred.Co. FS2 Construct N/A Monocacy Blvd Hughes Ford Rd. Gas House Pike 0 3 BMC nrs ReconstrucN/A Jennifer Rd (ramps) @ US 50/MD (2 Interchange) 

BMC nrs Widen N/A MD 174 MD 174 (Bridge at I-97) 3

Anne Arundel CountyFrederick County

c6hwy0720_updated for SIP.xls 2/27/2007 A-5

Appendix E1 - Page Number:22
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

BMC AA3c Widen N/A MD 2 Virginia Avenue MD 214 2 

BMC nrs Construct N/A MD 32 (2 new interchange) @Airfield Rd and MD 198 1BMC nrs Construct N/A MD 32 (new interchange) @ Canine Rd 1BMC nrs Construct N/A MD 32 (new interchange) @ Samford Rd 1BMC nrs Construct N/A Medical Blvd Jennifer Road Bestgate Rd 

BMC nrs Construct N/A

National Business ParkBrock Bridge Road Guilford Road Extended Brock Bridge Road 

BMC nrs ReconstrucN/A US 50/301 (ramp) Northbound MD 2 Westbound US 50 1

BMC CA3A Construct N/A Hampstead Bypass (MD 30) Wolf Hill Dr Brodbeck Rd 2

BMC nrs ReconstrucN/A MD 140 (reconstruct bridge) MD 97 (north) MD 27 1 

BMC nrs Construct N/A Shepherd's Mill Road MD 32 Arnold/Old Westminster Pike 

BMC nrs Widen N/A Dorsey Run Rd Guilford Road 

Henkels Ln and ramps at MD 32 and Dorsey Run Rd 4

BMC nrs Construct N/A Dorsey Run Rd Extension Guilford Road 4BMC HW21 Widen N/A Guilford Road Dorsey Run Road US 1 BMC nrs Widen N/A Guilford Road National Business Parkway Dorsey Run Road BMC HW17a Widen N/A Johns Hopkins Road US 29 Sanner Road 4BMC nrs Construct N/A Loop Road MD 216/Leishear Rd All Saints Road BMC nrs Construct N/A

Loop Road (new interchange) @ MD 216 West 

Carroll CountyHoward County

c6hwy0720_updated for SIP.xls 2/27/2007 A-6

Appendix E1 - Page Number:23
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

BMC nrs Construct N/A

Loop Road (new interchange) @ MD 216 East 

BMC ?? ReconstrucN/A MD 100 US 29 Long Gate Parkway 1

BMC ?? Widen N/A MD 100 Long Gate Parkway MD 104 1BMC ?? ReconstrucN/A MD 100 MD 104 I-95 1BMC ?? ReconstrucN/A MD 100 (new interchange) @ Snowden River Pkwy 1 BMC ?? ReconstrucN/A MD 100 (new interchange) @ MD 104 1 BMC ?? ReconstrucN/A MD 100 (new interchange)

@ Centre Park Drive and Executive Park Drive 1 

BMC ?? ReconstrucN/A MD 100 (new interchange) @ MD 103 1 

BMC HW7b Widen N/A MD 175 Snowden River Parkway Dobbin Road 3BMC ?? ReconstrucN/A MD 175 (new interchange) @ Snowden River Parkway 3 BMC HW8c Relocate N/A MD 216 West of I-95 West of US 29 3BMC HW14a ReconstrucN/A Snowden River Parkway Tamar Drive MD 100 3BMC ?? Widen N/A US 1 Deep Run Business Parkway 2BMC nrs Widen N/A US 1 Crestmount Road

South of Cherry Tree Business Park 2

BMC HW10c ReconstrucN/A US 29 (new interchange) @ Hopkins/Gorman Road 5 

BMC ?? Widen N/A MD 100 Long Gate Parkway US 29 1

Federal Lands

Fed. Lands Widen Old Mill Rd. US 1 Pole Rd. 42

Fed. Lands Construct Old Mill Rd. Pole Rd. Telegraph Rd. 00

Virginia

c6hwy0720_updated for SIP.xls 2/27/2007 A-7

Appendix E1 - Page Number:24
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT Freeway

VDOT VI1c Widen CE-4 I-66 HOV during peak VA 234 (Prince Wm. Pkwy)

VA 234 Business (Sudley Rd.) 1 1 

VDOT VI2p Widen CE-1 I-95 (provide 4th lane) Newington VA 123 1 1 

VDOT VI2k Widen SEIS-2

I-95 (Wilson Bridge and approaches) US 1 MD 210 1 1 

VDOT VI2c Reconstrucapproved I-95/395/495 Interchange 1 1 VDOT VP15g Widen N/A

VA 267 (Dulles Toll Road) Ramps @ I-495 Interchange 1 1 

VDOT N/A Dulles Corridor Slip Ramps

Dulles Corridor Park & Ride Lots Dulles Toll Road 

VDOT VP21d Widen N/A Dulles Greenway Goose Creek Bridge VA 901 (Claiborne Parkway) 1 1 VDOT VP21e Widen N/A Dulles Greenway VA7/15 Bypass Goose Creek Bridge 1 1 VDOT VP21b Construct N/A

Dulles Greenway Interchanges

@ VA 653 & @ Battlefield Parkway 1 1 

VDOT Primary

VDOT nrs ReconstrucPending US 1 @ VA 619 (Joplin Road)

USMC HERITAGE CENTER ACCESS - - 

VDOT VP1f Widen Approved US 1 (3la. NB - 4 la. SB) Lorton Rd. Telegraph Rd. 2 2 

VDOT VP1fb Widen Approved US 1 (as part of VP1f) Armistead Rd. Lorton Rd. 2 2 VDOT VP1o Widen Approved US 1 (Neabsco Creek Bridge) VA 610 (Neabsco Road) VA 638 (Neabsco Mills Road) 2 2 VDOT VP1p Widen Pending

US 1 (part of 1/123 interchange) Occoquan Rd. Annapolis Way 2 2 

VDOT VP2ma Widen Pending VA 7 Rolling Holly Drive Reston Parkway 2 2 VDOT nrs ReconstrucPending VA 7

@ VA 606 (Baron Cameron Ave.) - - 

VDOT VP2t Construct Pending VA 7 interchange

@ Claiborne Pkwy./West Spine Rd. - 1 

VDOT nrs ReconstrucPending VA 7

@ VA 711 (Williams Gap Road) 2 2 

c6hwy0720_updated for SIP.xls 2/27/2007 A-8

Appendix E1 - Page Number:25
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT nrs ReconstrucPending VA 9 @ VA 662 (Clarks Gap Road) 3 3 

VDOT VP4fa Widen N/A

US 15 (James Madison Highway) I-66 VA 234 2 2 

VDOT nrs ReconstrucN/A

US 15 (James Monroe Highway) Whites Ferry Rd. Lucketts Road 3 3 

VDOT nrs ReconstrucN/A

US 15 (James Monroe Highway) Lucketts Road Maryland State Line 3 3 

VDOT nrs ReconstrucN/A

US 15 (James Monroe Highway) Village of Lucketts Vicinity of VA 662 3 3 

VDOT nrs Recons/WidPending VA 28 Bridge over Broad Run

Replace / Widen to ultimate width 3 3 

VDOT VP6ea Widen/Upg N/A VA 28 Dulles Toll Rd. VA 606 (Old Ox Rd.) 2 1 

VDOT VP6eb Construct VA 28 Interchange @ VA 209 (Innovation Ave.) - - 

VDOT Reconst. VA 28 Interchange @ New Braddock Rd. - - VDOT VP6u Upgrade N/A VA 28 PPTA (Phase I) US 50 Interchange

Barnsfield (SASM) Interchange 2 1 

VDOT VP6v Construct/UN/A

VA 28 PPTA (Phase I) Interchange @ VA 668 (McLearen Road)

SASM Interchange to VA 668 upgrade 2 1 

VDOT VP6w Construct/UN/A

VA 28 PPTA (Phase I) Interchange @ Sterling Boulevard VA 606 to VA 625 upgrade 2 1 

VDOT VP6x Construct N/A

VA 28 PPTA (Phase I) Interchange

@ VA 625 (Church & Waxpool Rds.) 2 2 

VDOT VP6y Construct N/A

VA 28 PPTA (Phase I) Interchange @ Westfields Boulevard - - 

VDOT VP6z Construct N/A

VA 28 PPTA (Phase I) Interchange @ VA 606 (Old Ox Rd.) --

VDOT nrs ReconstrucPending US 50

Waples Mill Rd (intersection Improvements) 2nd EB to NB left turn lane 0 0 

VDOT nrs ReconstrucPending US 50 Interchange @Jaguar Trail 2 2 

VDOT VP8o ReconstrucPending US 50 Interchange

@ Courthouse Road / 10th Street - - 

VDOT nrs ReconstrucApproved VA 120 (Glebe Road) @ VA 244 (Columbia Pike) - - 

c6hwy0720_updated for SIP.xls 2/27/2007 A-9

Appendix E1 - Page Number:26
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT nrs ReconstrucApproved VA 120 (Glebe Road) @ Arlington Ridge Rd. left turn lanes - - 

VDOT nrs ReconstrucN/A VA 120 (Glebe Road) Quebec St. 2nd St. 2 2 

VDOT nrs Construct Approved VA 123 Interchange @ US 1 - - 

VDOT VP10g Widen Pending VA 123 Route 1 Horner Road 2 2 

VDOT VP10eb Widen Approved VA 123 (Ox Road) Hooes Rd. Lee Chapel Rd. 22

VDOT VP10q Widen Approved VA 123 (Ox Road) Lee Chapel Rd. Burke Lake Rd. 22VDOT VP10ea Widen Pending VA 123 (Ox Road) VA 722 North Hooes Rd. 2 2 

VDOT nrs ReconstrucPending VA 123 @ VA 620 (Braddock Road) 2 2 VDOT VP10l Widen Pending

VA 123 (Occoquan River Bridge) South Approach VA 722 North 2 2 

VDOT nrs ReconstrucPending VA 193 @ Riverbend Road & @ Nethercliff Hall Road 3 3 VDOT VP12b Widen Approved VA 234 (Dumfries Road) Country Club Dr. Eclipse Dr. 2 2 VDOT VP12a Widen Pending VA 234 (Dumfries Road) Eclipse Dr. Snowfall Dr. 2 2 VDOT VP12ea Widen Approved VA 234 (Dumfries Road) Snowfall Dr. Purcell Rd. 22

VDOT nrs ReconstrucPending

VA 236 (intersection/spot improvements) Pickett Road Lake Drive 2 2 

VDOT nrs ReconstrucPending VA 236 EB @ VA 620 (Braddock Road) - - 

VDOT nrs ReconstrucPending VA 236 WB @ VA 620 (Braddock Road) - - 

VDOT Urban

VDOT VU28b Construct Developer Battlefield Parkway US 15 south of Leesburg Dulles Greenway 0 2 

VDOT VU28c Construct Developer Battlefield Parkway Dulles Greenway Sycolin Road 0 2 VDOT VU28e Construct Developer Battlefield Parkway Route 7 Fort Evans Road 0 2 

c6hwy0720_updated for SIP.xls 2/27/2007 A-10

Appendix E1 - Page Number:27
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT VU28g Construct N/A Battlefield Parkway Edwards Ferry Road Cattail Branch 0 2 

VDOT VU13a Widen Approved Catoctin Circle South Street King Street 44

VDOT VU56 Construct N/A

Digital Drive/West Carondelet Drive Manassas Drive Blackhawk Court - 3 

VDOT nrs Reconstruct Duke St. Fairfax County Line Washington St. 2 2 

VDOT VSP26 Widen Approved Fairview Ave. Nagle Street Liberia Avenue 33

VDOT nrs Construct Pending George Mason Blvd. Univer. Dr @ Armstrong St. Univ. Dr. @ Parking Entr. 0 4 

VDOT VU26b Widen Approved Richmond Ave. Dumfries Road Ellicott Lane 3 3 VDOT VU30a Widen Pending

South Elden Street/Centreville Road Worldgate Drive Herndon Parkway 2 2 

VDOT VU33 Widen Pending Sycolin Road VA 7/US 15 Bypass SCL of Leesburg 3 3 VDOT VU32 Widen Pending US 15 (South King Street) Evergreen Mill Road SCL of Leesburg 3 2 VDOT nrs Construct Approved VA 28 Overpass & Interchg.

Overpass Norfolk-Southern RR B line Interchange w/Wellington Rd. 2 2 

VDOT nrs Widen N/A

VA 234 (Sudley Road) 3rd NB lane Dorsey Circle Godwin Dr. 2 2 

VDOT VU31 Widen Approved VA 7 (East Market Street) Loudoun Street Sycolin Road 33

VDOT VU48b Widen Pending Wellington Road Godwin Drive VA 28 (Nokesville Road) 3 3 

Arlington Secondary

VDOT nrs Construct N/A Glebe Rd. Extended US 1 Potomac Avenue - 3 

VDOT nrs Construct N/A Potomac Avenue Four Mile Run Crystal Drive - 3 VDOT AR28b Widen N/A N. Quincy St. Wilson Blvd. VA 237 3 3 

VDOT AR19a ReconstrucPending Wilson Blvd. N. Frederick George Mason Dr. 2 2 

Fairfax Secondary

c6hwy0720_updated for SIP.xls 2/27/2007 A-11

Appendix E1 - Page Number:28
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT VSF2c Widen Pending VA 608 (West Ox Road) VA 6985 (Ox Trail) VA 602 (Lawyers Road) 3 3 

VDOT VSF2a Widen Pending VA 608 (West Ox Road) VA 6558 (Penderbrook Drive) VA 6985 (Ox Trail) 3 3 VDOT VSF5a Widen Approved VA 613 (Beulah Street) VA 644 (Franconia Road)

VA 7900 (FranconiaSpringfield Pkwy) 33

VDOT FFX5d Construct Pending VA 613 (S. Van Dorn St.) Kingstowne Blvd. VA 611 0 3 

VDOT VSF10g Construct Pending VA 638 (Rolling Road)

connection to VA 4600 (Fullerton Road) 03

VDOT VSF13e Widen Pending VA 642 (Lorton Road) VA 600 (Silverbrook Road) US 1 (Richmond Highway) 3 3 VDOT VSF14b Widen Approved VA 643 (Lee Chapel Road)

VA 7100 (Fairfax County Parkway) VA 644 (Old Keene Mill Road) 33

VDOT VSF16a Widen Approved VA 645 (Burke Lake Road) VA 643 (Lee Chapel Road)

VA 7100 (Fairfax County Parkway) 3 3 

VDOT VSF36 Construct N/A VA 645 (Clifton Road) VA 620 (Braddock Road) US 29 (Lee Highway) 3 3 

VDOT VSF18b Widen N/A VA 657 (Centreville Road) VA 8390 (Metrotech Dr.) VA 668 (McLearen Road) 3 3 VDOT VSF18h Widen Pending VA 657 (Centreville Road) VA 608 (West Ox Rd) VA 608 (Frying Pan Rd) 3 3 VDOT VSF24 Widen N/A VA 684 (Spring Hill Road) VA 7 (Leesburg Pike) VA 6034 (International Drive) 3 3 VDOT FFX22b Construct Pending VA 828 (Wiehle Ave.)

VA 7100 (Fairfax County Parkway) VA 228 (Dranesville Road) 03

VDOT VSF25n Construct Approved

VA 7100 (Fairfax County Parkway) VA 4600 (Fullerton Road)

VA 7900 (FranconiaSpringfield Parkway) 0 1 

FHWA/VDOT

Woodlawn Rd., Beulah St., Kingman Rd.

Woodlawn and Beulah from US 1 to Telegraph

Kingman from Beulah to Telegraph 00

FHWA/VDOT FED2 Widen Pending Old Mill Rd. US 1 Pole Rd 4 4 

FHWA/VDOT FED3 Construct Pending Old Mill Rd. extended Pole Rd. Telegraph 0 3 

Loudoun Secondary

VDOT VSL51 Construct Pending Atlantic Boulevard VA 625 (Church Road) VA 7 - 3 

VDOT VSL39 Construct N/A

Broadlands Boulevard (Ryan Bypass) VA 659 VA 625 0 3 

Convert to Centroid 

Connector

c6hwy0720_updated for SIP.xls 2/27/2007 A-12

Appendix E1 - Page Number:29
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT Widen N/A

VA 606 (Dulles Greenway Interchange) within Greenway R/W 1 1 

VDOT

widen/ Constr. N/A

VA 607 (Loudoun County Pkwy) (nee VA 28 Bypass) VA 620 @ VA 613 Edgewater St. 3 

VDOT Construct N/A

VA 607 (Loudoun County Pkwy) (nee VA 28 Bypass) Edgewater St. US 50 - 3 

VDOT VSL10bf

Widen/Upgrade Pending

VA 607 (Loudoun County Pkwy) (dirt road) Redskin Park Drive Gloucester Parkway 4 3 

VDOT VSL10bd

Widen/Upgrade Pending

VA 607 (Loudoun County Pkwy) Gloucester Parkway VA 7 4 3 

VDOT VSL12 Widen Pending VA 625 (Church Rd.) VA 28 VA 637 3 3 VDOT VSL12b Widen Pending VA 625 (Waxpool Rd.) Loudoun County Parkway Broad Run 3 3 VDOT VSL12c Widen Pending VA 625 (Waxpool Rd.) Broad Run VA 28 3 3 VDOT VSL4e

Widen/Upgrade N/A VA 659 (Gum Spring Rd.) VA 620 (Braddock Road) US 50 4 3 

VDOT VSL44

Widen/Upgrade N/A VA 772 (Ryan Road) VA 659 (Belmont Ridge Rd.) Dulles Greenway @ exit #6 4 3 

VDOT VSL40a Widen N/A VA 901 (Claiborne Parkway) VA 640 (Ashburn Farm Road) W&OD Trail 4 3 VDOT nrs Construct Pending VA 868 (Davis Dr.) VA 606 (Old Ox Road) VA 625 (Church Road) - 4 

VDOT VSL47

Widen/Upgrade N/A River Creek Parkway Riverside Parkway VA 773 (Edwards Ferry Road) 4 3 

VDOT VSL48 Construct N/A Riverside Parkway River Creek Parkway Ashburn Village Blvd. - 3 

VDOT VSL50

Widen/Upgrade Pending VA 773 (Fort Evans Road) Leesburg Town Limits River Creek Parkway 4 3 

Prince William Secondary

VDOT VSP46b Construct Pending

VA 1566 (Sudley Manor Drive Extension) VA 619 (Linton Hall Road) VA 234 Bypass 0 4 

VDOT VSP46 Construct Pending

VA 1566 (Sudley Manor Drive Extension) VA 234 Bypass Chatsworth Drive 0 4 

VDOT VSP25d Construct Pending

VA 2480 (Benita Fitzgerald Drive, Extended) VA 610 (Cardinal Drive)

VA 2480 (Benita Fitzgerald Drive) 0 3 

VDOT VSP23f Construct Pending

VA 3000 (Prince William Parkway) I-95 US 1 at Longview Drive 0 2 

c6hwy0720_updated for SIP.xls 2/27/2007 A-13

Appendix E1 - Page Number:30
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

VDOT VSP2a

Widen/Upgrade Approved VA 619 (Linton Hall Road) US 29 (Lee Highway) VA 675 (Glenkirk Road) 4 3 

VDOT VSP2b

Widen/Upgrade Approved VA 619 (Linton Hall Road) VA 675 (Glenkirk Road) VA 621 (Devlin Road) 4 3 

VDOT VSP2e

Widen/Upgrade Approved VA 619 (Linton Hall Road) VA 621 (Devlin Road) VA 1566 (Sudley Manor Dr.) 4 3 

VDOT VSP2h Widen Pending

VA 619 (Joplin Rd.) add right turn lane I-95 exit Ramp US 1 4 4 

VDOT VSP40a Construct Pending

VA 635 (Cherry Hill VRE Access Road) US 1 Future VRE Station site 0 4 

VDOT VSP5d Widen Pending VA 640 (Minnieville Road) VA 610 (Cardinal Drive) VA 643 (Spriggs Road) 3 3 VDOT VSP15c Widen Pending VA 640 (Minnieville Road) VA 849 (Caton Hill Road) VA 641 (Old Bridge Road) 3 3 VDOT VSP12a Widen Pending VA 643 (Spriggs Rd.) VA 234 (Dumfries Rd)) VA 642 (Hoadly Road) 3 3 VDOT VSP9 Widen Pending VA 660 (Hornbaker Road) VA 28 (Nokesville Rd.)

VA 840 (University Boulevard Extended) 33

VDOT VSP17c Widen Pending VA 674 (Wellington Rd.)

VA 619 (Relocated Linton Hall Rd) VA 621 (Devlin Road) 3 3 

VDOT VSP47c Construct Pending VA 840 (University Blvd.) VA 660 (Hornbaker Rd.) VA 234 Bypass 03

VDOT VSP56a Construct Pending VA 840 (University Blvd.) VA 674 (Wellington Road)

US 29 @ Ent. to Conway Robinson MSF 0 3 

VDOT VSP45 Construct N/A

VA 861 (Clover Hill Road Extended) VA 234 Bypass Manassas Airport 0 4 

FAMPO

FAMPO FAI1a Construct EA Compl. I-95 interchange at VA 627 1 1 

FAMPO FAP2 realign Compl. VA 218 / VA 212 VA 212 VA 218 0 3 

FAMPO FAS23a Construct Pending VA 208 Bypass (Spotsylvania)*West of Ta River East of Po River 0 3 

FAMPO FAS23b Construct Pending VA 208 Bypass (Spotsylvania)*East of Po River West of Ni River 0 3 STAFFORD COUNTY SECONDARY

c6hwy0720_updated for SIP.xls 2/27/2007 A-14

Appendix E1 - Page Number:31
Attachment B

 2008 and 2009 8-Hour Ozone SIP Network Inputs

(highway and HOV)

Project Environ. 

Agency ID Improv. Review Facility From To from to f

Facility 

FAMPO FAS7a Widen Compl. VA 607 VA 626 VA 218 4 4 

FAMPO FAS7b

Reconstruct Compl. VA 607 VA 218 VA 3 4 4 

FAMPO FAS3c Widen VA 610 (Garrisonville Rd.) VA 610 (existing 4 lane sectionVA 643 4 4 

FAMPO FAS3da Widen VA 610 (Garrisonville Rd.) US 1 VA 684 (Mine Rd.) 4 3 

FAMPO FAS3d Widen VA 610 (Garrisonville Rd.) VA 684 (Mine Rd.) VA 641 4 3 FAMPO FAS9 Widen VA 627 Existing VA 627 proposed I-95/VA 627 int. 4 4 

SPOTSYLVANIA COUNTY SECONDARYFAMPO FAS7a Widen Compl. VA 607 (Deacon Rd)** VA 218 VA 626 4 4 

FAMPO FAS9c Widen VA 627 (Spotsylvania) VA 610 VA 620 4 4 FAMPO FAS20a Widen Pending VA 639 (Leavells Rd.) VA 620 VA 208 4 4 FAMPO FAS20c Widen VA 639 (Bragg Rd.) VA 618 VA 3 4 4 

c6hwy0720_updated for SIP.xls 2/27/2007 A-15

Appendix E1 - Page Number:32
Attachment B

2008 and 2009 8-Hour Ozone SIP Network

(Transit)

Project Environ. 

Agency ID Improv. Review Facility From To 

Washington Metropolitan Area Transit Authority

WMATA Fair Lakes Shuttle WMATA Constru Approved

SEP-Largo Extension and Parking Addison Road Largo 

WMATA Constru Approved

SEP-New York Avenue 

Station 

District of Columbia

DCDOT Pending

CSX Shepherd Branch (formerly Anacostia Rail Line) Pennsylvania Ave., SE South Capitol St. SW 

DCDOT Reconstruct K St. Busway Mt. Vernon Sq./7th St. NW Wash.Circle / 23rd St. NW 

Maryland

MTA Construct Silver Spring Transit Center Phase II 

MTA Construct

Southern MD Commuter Bus Initiative

Park-and-Ride lots and increase bus service in the MD 5 corridor (La Plata) 

Montgomery County

Mont.Co. MCT24 Constru N/A

Grovesnor Metro Parking Garage Grosvenor Metrorail Station 

Mont.Co. MCT16

NIH Naval Medical Transportation Management Bethesda 

Prince Georges County

PG Co. Constru N/A Accokeek Fringe Parking Lot 

Virginia

VDOT Constru Pending Park-and-Ride

I-95 Springfield Interchange Congestion Mitigation @ Backlick South 

VDOT ImplemeN/A

VA 244 (Columbia Pike) Signal Prioritization Fairfax County Line Pentagon 

Arlingto

n Co. Constru Pending

Crystal City / Potomac Yard Busway (2-lane) Segment 1 Vicinity of Glebe Rd. Ext. 26th St. 

Arlingto

n Co. Constru Pending

Crystal City / Potomac Yard Busway (2-lane) Segment 2 26th St. Crystal City Metro Station 

c6trn0720_updated_for_SIP.xls 2/27/2007 A-16

Appendix E1 - Page Number:33
Attachment B

2008 and 2009 8-Hour Ozone SIP Network

(Transit)

Project Environ. 

Agency ID Improv. Review Facility From To 

VDOT ImplemePending US 1 Transit Improvements Gunston Road Huntington Avenue 

VDOT Constru Pending Park-and-Ride Lot Springfield CBD

vic. I-95 & Old Keene Mill Road 

VDOT RelocatePending Park-and-Ride Lot (Leesburg)

Relocate to vic. of Leesburg Bypass

VA 7, and / or the Dulles Greenway 

VDOT N/A Dulles Corridor Slip Ramps

Dulles Corridor Park & Ride Lots Dulles Toll Road 

VDOT Constru Pending Park-and-Ride Lot VA 7900 (F-S Pkwy.) PnR @ Gambrill Road Location 

VDOT Constru N/A Park-and-Ride Lot

Dulles Corridor Park-and-Ride Lots

Reston East at Wiehle Ave & Herndon-Monroe P & R Lots 

VDOT Constru Pending Park-and-Ride Lot VA 7900 (F-S Pkwy.) PnR @ Backlick Road North 

VDOT ReconstN/A

Park-and-Ride Lot Enhancements

@ Reston, Centreville, West Springfield 

VDOT Constru Pending Transit Center (Reston) Reston Town Center

@Explorer Dr. & Bluemont Way 

VDOT Constru Pending

Transit Center (Bradlee Shopping Center) King St. and Braddock Rd. 

VDOT Constru Pending

Transit Center (Seven Corners)

Seven Corners Shopping Center 

VDOT Constru Pending Park-and-Ride Lot Purcellville 100-space park-and-ride lot. 

VDOT Construct

Town of Leesburg -Harrison St & Catoctin Circle

Loudoun County Commuter Bus Service. 400 Space Park & Ride Lot 

VDOT Construct VA 772 (Ryan) Station

Loudoun County Commuter Bus Service. 300 Space Park & Ride Lot 

PRTC Bus service Omni Service Improvements 

VDRPT IncorporPending

DCRTP - BRT Elements into the Express Bus Service in 

East Falls Church Metrorail Station Route 772 

VRE Constru Pending

VRE - Cherry Hill Commuter 

Rail Station Cherry Hill Prince William County 

c6trn0720_updated_for_SIP.xls 2/27/2007 A-17

Appendix E1 - Page Number:34
ATTACHMENT B 

Appendix E1 - Page Number:

35
B-1 

ATTACHMENT B 

Memorandum 

May 10, 2006 

Revised: February 21, 2007 

To: VIN Decoder Project Files 

From: Daivamani Sivasailam 

 Principal Transportation Engineer 

Subject: Development of vehicle age distributions and diesel vehicle percentages using 

vehicle identification number (VIN) decoder software - Overview 

Introduction 

This memorandum summarizes the methodology used, and the results obtained, in developing 

Mobile 6 input files of vehicle characteristics data summarized from 2005 District of Columbia, 

Maryland and Virginia vehicle registration data. The Mobile 6 model requires age distribution 

(1-25+ years) and diesel fueled vehicle percentages for 16 separate vehicle types (passenger cars, 

motorcycles, light trucks, and heavy trucks in ascending weight categories). The model then 

generates 28 vehicle types by applying the diesel percentages to the relevant vehicle types. This 

work continues the cycle of obtaining consistent vehicle registrations on a 3 year basis. These 

results will be used in the development of the mobile source emissions inventories for state 

implementation plan (SIP) preparation and in air quality conformity assessments. 

Background 

In FY 2005, Department of Transportation Planning staff embarked on a pilot test of VIN 

decoder software. Samples of VIN data were obtained from the District of Columbia, Maryland, 

and Virginia and they were decoded using software called VINPOWER developed by ESP Data 

Solutions. From the decoded database, age distributions and diesel vehicle percentages for 

sixteen vehicle types were developed. The resulting distributions were compared with (2002) 

distributions previously developed from DMV data by the air agencies. Staff concluded that the 

software could be used to develop vehicle age distributions and diesel vehicle percentages for 

calendar year 2005. In FY 2006 staff purchased the full version of the decoder software and 

internally developed the program required to run the software in a batch mode. 

Application of VIN Decoder 

During spring 2005, the air agencies were asked to provide registration data including VIN 

numbers as of July 1, 2005. DTP staff received the data in early fall and, after data were cleaned 

of duplicates, successfully decoded the vehicle identification using the VIN decoder software. 

Staff then executed several work tasks to translate the decoded data into the vehicle type, age and 

fuel type categories required by the Mobile 6 model. These steps are documented in the 

Appendix E1 - Page Number:

36
B-2 

attachments to the May 10, 2006 memorandum from Michael J. Clifford to the Transportation 

Planning Board. Exhibit 1 is a summary chart showing the vehicle percentages for the District of 

Columbia, Maryland, and Virginia under three broad classifications of passenger, light duty and 

heavy duty vehicles. Exhibit 2 is a summary chart of average age for the three vehicle 

classifications. Included in the charts are the national averages used as default in the Mobile 6 

model. 

Exhibit 1 

Exhibit 2 

Appendix E1 - Page Number:

37
Exhibit I

B-3

Vehicle Fleet Distributed by Vehicle Type for the Washington Metropolitan Are

0%

10%20%30%40%50%60%70%80%

Passenger Vehicles Light Duty Vehicles Heavy Duty Vehicle

Appendix E1 - Page Number:38
Exhibit 2

B-4

Average Vehicle Age for the Washington Metropolitan Area

0.02.04.06.08.0

10.012.0

Passenger Vehicles Light Duty Trucks Heavy Duty Trucks

Appendix E1 - Page Number:39
ATTACHMENT C 

Appendix E1 - Page Number:

40
ATTACHMENT C ATTACHMENT C 

C-1 

Memorandum 

Date: March 6, 2007 

To: Michael Clifford, TPB 

 

From: Sunil Kumar, MWAQC 

Subject: MOBILE6 Input Documentation for Rate-of-Further Progress Adjusted Base 

Years 2002 and 2008 and Uncontrolled and Controlled Future Years 2008 and 

2009 Inventories 

The purpose of this memorandum is to document the MOBILE6 inputs for developing the 

onroad RFP adjusted base year emission inventories for calendar years 2002 and 2008 and 

uncontrolled and controlled future calendar years 2008 and 2009. Uncontrolled 2008 and 2009 

inventories include post-2002 growth but no post-2002 controls in them and therefore are 

“uncontrolled” since the base year 2002. Separate sets of input files were created to model 

emission factors corresponding to travel in the COG region for each of these calendar years 1) on 

network and local roadways, 2) during auto access to transit, and 3) by diesel transit and school 

buses. A number of MOBILE6 inputs used are the same as in the case of base year 2002 

inventory. BY 2002 MOBILE6 inputs are described in details in Appendix B (Base Year 2002 

Emissions Inventory Document) of the Washington, DC-MD-VA 8-Hour Ozone Nonattainment 

Area being submitted along with this SIP document. 

MOBILE6 inputs documented in different RFP adjusted base years, uncontrolled and, 

controlled future year inventories are discussed below, along with documentation of the source of 

individual MOBILE6 input parameters. 

1) RFP Adjusted Base Years 2002 and 2008 Inventories

• MOBILE6 Run Commands — The following run commands are used in both RFP 

adjusted base year MOBILE6 input files: “NO CLEAN AIR ACT”, “NO TIER2”, and 

“NO 2007 HDDV RULE”. 

• Registration Distributions—The registration distributions are the same as those 

documented for 2002 for network/local/auto access to transit and for diesel transit and 

school buses. 

• Diesel Sales Fractions — The diesel sales fractions are the same as those documented for 

2002. 

• VMT Mix Fractions — The VMT Mix fractions are the same as those documented for 

2002. 

• Inspection and Maintenance (I/M) and Anti-Tampering Program (ATP) Inputs — The 

1990 I/M and ATP programs documented in this memo are used in both RFP adjusted 

base case MOBILE6 input files. 

• Trip Length Distribution, Speeds, VMT by Facility, and Soak Distributions—All of these 

parameters are the same as those documented for 2002. 

• Relative Humidity, Temperatures and Evaluation Month — These are the same as 

Appendix E1 - Page Number:

41
ATTACHMENT C ATTACHMENT C 

C-2 

• documented for 2002. 

• RVP — The RVP modeled for both RFP adjusted base year runs is 7.8 psi. This differs 

from the 1990 RVP of 8.2 psi to account for Phase II of the Federal RVP program which 

started in 1992. The RVP control program was enacted prior to the 1990 Clean Air Act 

Amendments, and therefore, needs to be accounted for in the adjusted base year 

MOBILE6 runs. 

• Gasoline Sulfur – Mobile6 model automatically sets this value at 300 ppm for all model 

years greater than 1993 if Clean Air Act benefits are not being modeled. 

• NOx Rebuild Effects - This is the same as documented for 2002. 

• Calendar Year — The calendar year is set to 2002 or 2008, depending on the year to be 

run. 

2) Uncontrolled Future Years 2008 and 2009 Inventories

• MOBILE6 Run Commands — Run commands used in the base year 2002 along with 

following commands: “NO TIER2”, and “NO 2007 HDDV RULE” are used in 

uncontrolled future years 2008 and 2009 MOBILE6 input files. 

• Registration Distributions—The registration distributions are the same as those 

documented for 2002 for network/local/auto access to transit and for diesel transit and 

school buses. 

• Diesel Sales Fractions — The diesel sales fractions for calendar years 2008 and 2009 

documented in this memo are used in base year 2002 controlled 2008 and 2009 MOBILE6 

input files. 

• VMT Mix Fractions — The 2008 and 2009 VMT Mix fractions documented in this memo 

are used in base year 2002 controlled 2008 and 2009 MOBILE6 input files. VMT mix 

fractions for school and transit bus analyses are the same as used in 2002. 

• Inspection and Maintenance (I/M) and Anti-Tampering Program (ATP) Inputs — These 

are the same as documented for 2002. 

• Trip Length Distribution, Speeds, VMT by Facility, and Soak Distributions—All of these 

parameters are the same as those documented for 2002. 

• Relative Humidity, Temperatures and Evaluation Month — These are the same as 

documented for 2002. 

• RVP — RVP values are the same as documented for 2002. 

• Gasoline Sulfur – They are the same as documented for 2002. 

• NOx Rebuild Effects - This is the same as documented for 2002. 

• Calendar Year — The calendar year is set to 2008 or 2009, depending on the year to be 

run. 

3) Controlled Future Years 2008 and 2009 Inventories

• MOBILE6 Run Commands — Run commands used in the base year 2002 are also used in 

controlled future years 2008 and 2009 MOBILE6 input files. 

• Registration Distributions—The registration distributions are the same as those 

documented for 2002 for network/local/auto access to transit and for diesel transit and 

school buses. 

Appendix E1 - Page Number:

42
ATTACHMENT C ATTACHMENT C 

C-3 

• Diesel Sales Fractions — The diesel sales fractions for calendar years 2008 and 2009 

documented in this memo are used in all controlled MOBILE6 input files. 

• VMT Mix Fractions — The 2008 and 2009 VMT Mix fractions documented in this memo 

are used in all controlled MOBILE6 input files. VMT mix fractions for school and transit 

bus analyses are the same as used in 2002. 

• Inspection and Maintenance (I/M) and Anti-Tampering Program (ATP) Inputs — The 

2008 and 2009 I/M and ATP programs documented in this memo are used in all controlled 

MOBILE6 input files. 

• Trip Length Distribution, Speeds, VMT by Facility, and Soak Distributions—All of these 

parameters are the same as those documented for 2002. 

• Relative Humidity, Temperatures and Evaluation Month — These are the same as 

documented for 2002. 

• RVP — RVP values are the same as documented for 2002. 

• Gasoline Sulfur – 30 ppm (Mobile6 default for 2008 onwards). 

• NOx Rebuild Effects – District of Columbia and Virginia used: 11% and 25% respectively 

(2002 values); Maryland: 90%. 

• Calendar Year — The calendar year is set to 2008 or 2009, depending on the year to be 

run. 

Appendix E1 - Page Number:

43
ATTACHMENT C ATTACHMENT C 

C-4 

I/M Program Parameters

Details of the format for the I/M Program Parameters listed in Tables D-1 through D-7 can 

found in the Mobile6 model user guide. 

Table D-1 

 1990 I/M Program Parameters for District of Columbia

> Exhaust I/M - IDLE test program #1 

I/M PROGRAM : 1 1983 2050 2 T/O IDLE 

I/M MODEL YEARS : 1 1968 2050 

I/M VEHICLES : 1 22222 22222111 1 

I/M STRINGENCY : 1 20 

I/M COMPLIANCE : 1 96 

I/M WAIVER RATES : 1 3 3 

Table D-2 

 1990 I/M Program Parameters for Maryland

The I/M program below existed only in Montgomery and Prince George’s in 1990. 

>IM Program for 1990. Idle Test All Vehicles 

*Idle for all vehicles 

I/M PROGRAM : 1 1984 2050 2 T/O Idle 

I/M MODEL YEARS : 1 1977 2050 

I/M VEHICLES : 1 22222 22222111 1 

I/M STRINGENCY : 1 23.0 

I/M COMPLIANCE : 1 96.0 

I/M WAIVER RATES : 1 21.0 23.0 

I/M GRACE PERIOD : 1 1 

Table D-3 

 1990 I/M Program Parameters for Virginia

The I/M program below existed only in Arlington, Fairfax, Prince William, and Alexandria in 

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C-5 

1990. 

I/M PROGRAM : 1 1983 2050 2 TRC IDLE 

I/M MODEL YEARS : 1 1968 2050 

I/M VEHICLES : 1 22222 11111111 1 

I/M STRINGENCY : 1 35 

I/M COMPLIANCE : 1 98.0 

I/M WAIVER RATES : 1 3.0 3.0 

Table D-4 

 2008 & 2009 I/M Program Parameters for District of Columbia

* District of Columbia's I/M input parameters for MOBILE6 for year 2004 and beyond: 

* The actual start date of the IM240 was 1999 

* The actual start date of the OBD testing was 2004 

* The dates used below for IM240 and OBD testing are needed to obtain the 

 

* appropriate I/M credit in MOBILE6. 

 

> Exhaust I/M - LDV pre-83 MY IDLE test program #1 

I/M PROGRAM : 1 1983 2050 2 T/O IDLE 

I/M MODEL YEARS : 1 1972 1983 

I/M VEHICLES : 1 22222 11111111 1 

I/M STRINGENCY : 1 20.0 

I/M COMPLIANCE : 1 96.0 

I/M WAIVER RATES : 1 3.0 3.0 

I/M EXEMPTION AGE : 1 25.0 

 

> Exhaust I/M - LDV MY 84-95 IM240 test program #2 (DC IM240 Start:1999) 

 

I/M PROGRAM : 2 1983 2050 2 T/O IM240 

I/M MODEL YEARS : 2 1984 1995 

I/M VEHICLES : 2 22222 11111111 1 

I/M STRINGENCY : 2 20.0 

I/M COMPLIANCE : 2 96.0 

I/M WAIVER RATES : 2 3.0 3.0 

I/M CUTPOINTS : 2 IM_ATP\DC.C02 

I/M EXEMPTION AGE : 2 25.0 

 

> Evap I/M - LDV pre-95 MY Gas Cap pressure test program #3 

I/M PROGRAM : 3 1999 2050 2 T/O GC 

I/M MODEL YEARS : 3 1972 1995 

I/M VEHICLES : 3 22222 11111111 1 

I/M COMPLIANCE : 3 96.0 

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C-6 

I/M WAIVER RATES : 3 3.0 3.0 

I/M EXEMPTION AGE : 3 25.0 

 

> Exhaust I/M - LDV post-96 MY OBD test program #4 (DC OBD Start:Jan 2004) 

 

I/M PROGRAM : 4 1983 2050 2 T/O OBD I/M 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M STRINGENCY : 4 20.0 

I/M COMPLIANCE : 4 96.0 

I/M WAIVER RATES : 4 3.0 3.0 

I/M EXEMPTION AGE : 4 25.0 

 

> Evap I/M - LDV post-96 OBD Evap test program #5 (DC OBD Start:Jan 2004) 

 

I/M PROGRAM : 5 1999 2050 2 T/O EVAP OBD & GC 

I/M MODEL YEARS : 5 1996 2050 

I/M VEHICLES : 5 22222 11111111 1 

I/M STRINGENCY : 5 20.0 

I/M COMPLIANCE : 5 96.0 

I/M WAIVER RATES : 5 3.0 3.0 

I/M EXEMPTION AGE : 5 25.0 

 

> Exhaust I/M - HDGV IDLE program #6 

I/M PROGRAM : 6 1983 2050 2 T/O IDLE 

I/M MODEL YEARS : 6 1972 2050 

I/M VEHICLES : 6 11111 22222111 1 

I/M STRINGENCY : 6 20.0 

I/M COMPLIANCE : 6 96.0 

I/M WAIVER RATES : 6 3.0 3.0 

I/M EXEMPTION AGE : 6 25.0 

Table D-5 

 2008 & 2009 I/M Program Parameters for Maryland

Montgomery and Prince George’s 

 

>IM Program. Idle, IM240, and OBD. 

>Waiver rates based on rates observed for January - June 2004 initial tests as of April 2005. 

*Idle older LDGV, LDGT 

I/M PROGRAM : 1 1984 2050 2 T/O Idle 

I/M MODEL YEARS : 1 1977 1983 

I/M VEHICLES : 1 22222 11111111 1 

I/M STRINGENCY : 1 20.0 

I/M COMPLIANCE : 1 96.0 

I/M WAIVER RATES : 1 12.7 12.7 

I/M GRACE PERIOD : 1 2 

 

*Idle HDGT 

I/M PROGRAM : 2 1984 2050 2 T/O Idle 

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C-7 

I/M MODEL YEARS : 2 1977 2050 

I/M VEHICLES : 2 11111 22222111 1 

I/M STRINGENCY : 2 20.0 

I/M COMPLIANCE : 2 96.0 

I/M WAIVER RATES : 2 12.7 12.7 

I/M GRACE PERIOD : 2 2 

 

*IM240 

I/M PROGRAM : 3 1984 2050 2 T/O IM240 

I/M MODEL YEARS : 3 1984 1995 

I/M VEHICLES : 3 22222 11111111 1 

I/M STRINGENCY : 3 20.0 

I/M COMPLIANCE : 3 96.0 

I/M WAIVER RATES : 3 12.7 12.7 

I/M CUTPOINTS : 3 IM_ATP\MD.C08 (MD.C09 for 2009) 

 

I/M GRACE PERIOD : 3 2 

 

*OBD 

I/M PROGRAM : 4 1984 2050 2 T/O OBD I/M 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M STRINGENCY : 4 20.0 

I/M COMPLIANCE : 4 96.0 

I/M WAIVER RATES : 4 4.9 4.9 

I/M GRACE PERIOD : 4 2 

 

*OBD Evap (Actual Start Year: July 2002) 

I/M PROGRAM : 5 2002 2050 2 T/O EVAP OBD 

I/M MODEL YEARS : 5 1996 2050 

I/M VEHICLES : 5 22222 11111111 1 

I/M COMPLIANCE : 5 96.0 

I/M WAIVER RATES : 5 4.9 4.9 

I/M GRACE PERIOD : 5 2 

Calvert, Charles, Fredrick 

>IM Program. Idle, IM240, and OBD. 

>Waiver rates based on rates observed for January - June 2004 initial tests as of April 2005. 

 

*Idle older LDGV, LDGT 

I/M PROGRAM : 1 1995 2050 2 T/O Idle 

I/M MODEL YEARS : 1 1977 1983 

I/M VEHICLES : 1 22222 11111111 1 

I/M STRINGENCY : 1 20.0 

I/M COMPLIANCE : 1 96.0 

I/M WAIVER RATES : 1 12.7 12.7 

I/M GRACE PERIOD : 1 2 

 

*Idle HDGT 

I/M PROGRAM : 2 1995 2050 2 T/O Idle 

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C-8 

I/M MODEL YEARS : 2 1977 2050 

I/M VEHICLES : 2 11111 22222111 1 

I/M STRINGENCY : 2 20.0 

I/M COMPLIANCE : 2 96.0 

I/M WAIVER RATES : 2 12.7 12.7 

I/M GRACE PERIOD : 2 2 

 

*IM240 

I/M PROGRAM : 3 1995 2050 2 T/O IM240 

I/M MODEL YEARS : 3 1984 1995 

I/M VEHICLES : 3 22222 11111111 1 

I/M STRINGENCY : 3 20.0 

I/M COMPLIANCE : 3 96.0 

I/M WAIVER RATES : 3 12.7 12.7 

I/M CUTPOINTS : 3 IM_ATP\MD.C08 (MD.C09 for 2009) 

 

I/M GRACE PERIOD : 3 2 

 

*OBD 

I/M PROGRAM : 4 1995 2050 2 T/O OBD I/M 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M STRINGENCY : 4 20.0 

I/M COMPLIANCE : 4 96.0 

I/M WAIVER RATES : 4 4.9 4.9 

I/M GRACE PERIOD : 4 2 

 

*OBD Evap (Actual Start Year: July 2002) 

I/M PROGRAM : 5 2002 2050 2 T/O EVAP OBD 

I/M MODEL YEARS : 5 1996 2050 

I/M VEHICLES : 5 22222 11111111 1 

I/M COMPLIANCE : 5 96.0 

I/M WAIVER RATES : 5 4.9 4.9 

I/M GRACE PERIOD : 5 2 

Table D-6 

 2008 I/M Program Parameters for Virginia

Arlington, Fairfax, Prince William, Alexandria 

* The start date of exhaust and evaporative OBD is 2005. The dates below are used to obtain 

the appropriate credits. 

* I/M Effectiveness reported in Program #3 applies to all exhaust programs modeled as TRC. 

 

> Exhaust I/M - IDLE test program #1 

I/M PROGRAM : 1 1983 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 1 1968 1980 

I/M VEHICLES : 1 22222 21111111 1 

I/M STRINGENCY : 1 35 

I/M COMPLIANCE : 1 98.0 

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C-9 

I/M WAIVER RATES : 1 1.3 1.3 

 

> Exhaust I/M - ASM final program #2 

I/M PROGRAM : 2 1983 2050 2 TRC ASM 2525/5015 FINAL 

 

I/M MODEL YEARS : 2 1981 1995 

I/M VEHICLES : 2 22222 11111111 1 

I/M STRINGENCY : 2 35 

I/M COMPLIANCE : 2 98.0 

I/M WAIVER RATES : 2 1.3 1.3 

 

> Exhaust I/M - OBD test program #3 

I/M PROGRAM : 3 1983 2050 2 TRC OBD I/M 

I/M MODEL YEARS : 3 1996 2050 

I/M VEHICLES : 3 22222 11111111 1 

I/M STRINGENCY : 3 35 

I/M COMPLIANCE : 3 98.0 

I/M WAIVER RATES : 3 1.3 1.3 

I/M EFFECTIVENESS : 0.94 0.94 0.94 

 

> Evap I/M - Evap OBD test program #4 

I/M PROGRAM : 4 1998 2050 2 TRC EVAP OBD & GC 

 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M COMPLIANCE : 4 98.0 

I/M WAIVER RATES : 4 1.3 1.3 

 

> Evap I/M - Gas Cap test program #5 

I/M PROGRAM : 5 1998 2050 2 TRC GC 

I/M MODEL YEARS : 5 1973 1995 

I/M VEHICLES : 5 22222 11111111 1 

I/M COMPLIANCE : 5 98.0 

I/M WAIVER RATES : 5 1.3 1.3 

 

 

> Exhaust I/M - IDLE test program #6 

I/M PROGRAM : 6 1983 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 6 1981 2050 

I/M VEHICLES : 6 11111 21111111 1 

I/M STRINGENCY : 6 35 

I/M COMPLIANCE : 6 98.0 

I/M WAIVER RATES : 6 1.3 1.3 

 

> Evap I/M - Gas Cap test program #7 

I/M PROGRAM : 7 1998 2050 2 TRC GC 

I/M MODEL YEARS : 7 1973 2050 

I/M VEHICLES : 7 11111 21111111 1 

I/M COMPLIANCE : 7 98.0 

I/M WAIVER RATES : 7 1.3 1.3 

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Loudoun

* The start date of exhaust and evaporative OBD is 2005. The dates below are used to obtain 

the appropriate credits. 

* I/M Effectiveness reported in Program #3 applies to all exhaust programs modeled as TRC. 

 

> Exhaust I/M - IDLE test program #1 

I/M PROGRAM : 1 1998 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 1 1968 1980 

I/M VEHICLES : 1 22222 21111111 1 

I/M STRINGENCY : 1 35 

I/M COMPLIANCE : 1 98.0 

I/M WAIVER RATES : 1 1.3 1.3 

 

> Exhaust I/M - ASM final program #2 

I/M PROGRAM : 2 1998 2050 2 TRC ASM 2525/5015 FINAL 

 

I/M MODEL YEARS : 2 1981 1995 

I/M VEHICLES : 2 22222 11111111 1 

I/M STRINGENCY : 2 35 

I/M COMPLIANCE : 2 98.0 

I/M WAIVER RATES : 2 1.3 1.3 

 

> Exhaust I/M - OBD test program #3 

I/M PROGRAM : 3 1998 2050 2 TRC OBD I/M 

I/M MODEL YEARS : 3 1996 2050 

I/M VEHICLES : 3 22222 11111111 1 

I/M STRINGENCY : 3 35 

I/M COMPLIANCE : 3 98.0 

I/M WAIVER RATES : 3 1.3 1.3 

I/M EFFECTIVENESS : 0.94 0.94 0.94 

 

> Evap I/M - Evap OBD test program #4 

I/M PROGRAM : 4 1998 2050 2 TRC EVAP OBD & GC 

 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M COMPLIANCE : 4 98.0 

I/M WAIVER RATES : 4 1.3 1.3 

 

> Evap I/M - Gas Cap test program #5 

I/M PROGRAM : 5 1998 2050 2 TRC GC 

I/M MODEL YEARS : 5 1973 1995 

I/M VEHICLES : 5 22222 11111111 1 

I/M COMPLIANCE : 5 98.0 

I/M WAIVER RATES : 5 1.3 1.3 

 

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> Exhaust I/M - IDLE test program #6 

I/M PROGRAM : 6 1998 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 6 1981 2050 

I/M VEHICLES : 6 11111 21111111 1 

I/M STRINGENCY : 6 35 

I/M COMPLIANCE : 6 98.0 

I/M WAIVER RATES : 6 1.3 1.3 

 

> Evap I/M - Gas Cap test program #7 

I/M PROGRAM : 7 1998 2050 2 TRC GC 

I/M MODEL YEARS : 7 1973 2050 

I/M VEHICLES : 7 11111 21111111 1 

I/M COMPLIANCE : 7 98.0 

I/M WAIVER RATES : 7 1.3 1.3 

Table D-7 

 2009 I/M Program Parameters for Virginia

Arlington, Fairfax, Prince William, Alexandria 

* I/M Effectiveness reported in Program #3 applies to all exhaust 

* programs modeled as TRC. 

* First 4 years exempt. 

 

> Exhaust I/M - IDLE test program #1 

I/M PROGRAM : 1 1983 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 1 1968 1980 

I/M VEHICLES : 1 22222 21111111 1 

I/M STRINGENCY : 1 35 

I/M COMPLIANCE : 1 98.0 

I/M WAIVER RATES : 1 2.5 2.5 

I/M EXEMPTION AGE : 1 24 

 

> Exhaust I/M - ASM final program #2 

I/M PROGRAM : 2 1983 2050 2 TRC ASM 2525/5015 FINAL 

 

I/M MODEL YEARS : 2 1981 1995 

I/M VEHICLES : 2 22222 11111111 1 

I/M STRINGENCY : 2 35 

I/M COMPLIANCE : 2 98.0 

I/M WAIVER RATES : 2 2.5 2.5 

I/M EXEMPTION AGE : 2 24 

 

> Exhaust I/M - OBD test program #3 

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C-12 

I/M PROGRAM : 3 1983 2050 2 TRC OBD I/M 

I/M MODEL YEARS : 3 1996 2050 

I/M VEHICLES : 3 22222 11111111 1 

I/M STRINGENCY : 3 35 

I/M COMPLIANCE : 3 98.0 

I/M WAIVER RATES : 3 2.5 2.5 

I/M EXEMPTION AGE : 3 24 

I/M EFFECTIVENESS : 0.94 0.94 0.94 

I/M GRACE PERIOD : 3 4 

 

> Evap I/M - Evap OBD test program #4 

I/M PROGRAM : 4 1998 2050 2 TRC EVAP OBD & GC 

 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M COMPLIANCE : 4 98.0 

I/M WAIVER RATES : 4 2.5 2.5 

I/M EXEMPTION AGE : 4 24 

I/M GRACE PERIOD : 4 4 

 

> Evap I/M - Gas Cap test program #5 

I/M PROGRAM : 5 1998 2050 2 TRC GC 

I/M MODEL YEARS : 5 1973 1995 

I/M VEHICLES : 5 22222 11111111 1 

I/M COMPLIANCE : 5 98.0 

I/M WAIVER RATES : 5 2.5 2.5 

I/M EXEMPTION AGE : 5 24 

 

> Exhaust I/M - IDLE test program #6 

I/M PROGRAM : 6 1983 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 6 1981 2050 

I/M VEHICLES : 6 11111 21111111 1 

I/M STRINGENCY : 6 35 

I/M COMPLIANCE : 6 98.0 

I/M WAIVER RATES : 6 2.5 2.5 

I/M EXEMPTION AGE : 6 24 

I/M GRACE PERIOD : 6 4 

 

> Evap I/M - Gas Cap test program #7 

I/M PROGRAM : 7 1998 2050 2 TRC GC 

I/M MODEL YEARS : 7 1973 2050 

I/M VEHICLES : 7 11111 21111111 1 

I/M COMPLIANCE : 7 98.0 

I/M WAIVER RATES : 7 2.5 2.5 

I/M EXEMPTION AGE : 7 24 

I/M GRACE PERIOD : 7 4 

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Loudoun 

* I/M Effectiveness reported in Program #3 applies to all exhaust 

* programs modeled as TRC. 

* First 4 years exempt. 

 

> Exhaust I/M - IDLE test program #1 

I/M PROGRAM : 1 1998 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 1 1968 1980 

I/M VEHICLES : 1 22222 21111111 1 

I/M STRINGENCY : 1 35 

I/M COMPLIANCE : 1 98.0 

I/M WAIVER RATES : 1 2.5 2.5 

I/M EXEMPTION AGE : 1 24 

 

> Exhaust I/M - ASM final program #2 

I/M PROGRAM : 2 1998 2050 2 TRC ASM 2525/5015 FINAL 

 

I/M MODEL YEARS : 2 1981 1995 

I/M VEHICLES : 2 22222 11111111 1 

I/M STRINGENCY : 2 35 

I/M COMPLIANCE : 2 98.0 

I/M WAIVER RATES : 2 2.5 2.5 

I/M EXEMPTION AGE : 2 24 

 

> Exhaust I/M - OBD test program #3 

I/M PROGRAM : 3 1998 2050 2 TRC OBD I/M 

I/M MODEL YEARS : 3 1996 2050 

I/M VEHICLES : 3 22222 11111111 1 

I/M STRINGENCY : 3 35 

I/M COMPLIANCE : 3 98.0 

I/M WAIVER RATES : 3 2.5 2.5 

I/M EXEMPTION AGE : 3 24 

I/M EFFECTIVENESS : 0.94 0.94 0.94 

I/M GRACE PERIOD : 3 4 

 

> Evap I/M - Evap OBD test program #4 

I/M PROGRAM : 4 1998 2050 2 TRC EVAP OBD & GC 

 

I/M MODEL YEARS : 4 1996 2050 

I/M VEHICLES : 4 22222 11111111 1 

I/M COMPLIANCE : 4 98.0 

I/M WAIVER RATES : 4 2.5 2.5 

I/M EXEMPTION AGE : 4 24 

I/M GRACE PERIOD : 4 4 

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> Evap I/M - Gas Cap test program #5 

I/M PROGRAM : 5 1998 2050 2 TRC GC 

I/M MODEL YEARS : 5 1973 1995 

I/M VEHICLES : 5 22222 11111111 1 

I/M COMPLIANCE : 5 98.0 

I/M WAIVER RATES : 5 2.5 2.5 

I/M EXEMPTION AGE : 5 24 

 

> Exhaust I/M - IDLE test program #6 

I/M PROGRAM : 6 1998 2050 2 TRC 2500/IDLE 

I/M MODEL YEARS : 6 1981 2050 

I/M VEHICLES : 6 11111 21111111 1 

I/M STRINGENCY : 6 35 

I/M COMPLIANCE : 6 98.0 

I/M WAIVER RATES : 6 2.5 2.5 

I/M EXEMPTION AGE : 6 24 

I/M GRACE PERIOD : 6 4 

 

> Evap I/M - Gas Cap test program #7 

I/M PROGRAM : 7 1998 2050 2 TRC GC 

I/M MODEL YEARS : 7 1973 2050 

I/M VEHICLES : 7 11111 21111111 1 

I/M COMPLIANCE : 7 98.0 

I/M WAIVER RATES : 7 2.5 2.5 

I/M EXEMPTION AGE : 7 24 

I/M GRACE PERIOD : 7 4 

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Cut-Point Parameters

Details of the format for the cut-point parameters listed in Tables D-8 through D-10 can 

found in the Mobile6 model user guide. 

 

Table D-8 

Cut-Point Parameters for District of Columbia

(Valid for 2002 and beyond) 

* District of Columbia IM240 cutpoints - applies to year 2002 and later 

* Block 1 (LDGV, Light LDGT1(EPA LD1)) 

 0.800 0.800 0.800 0.800 0.800 0.800 0.800 1.200 1.200 1.200 

 1.200 1.200 2.000 2.000 2.000 2.000 2.000 2.000 2.000 2.000 

 2.000 2.000 2.200 2.000 2.000 

 15.000 15.000 15.000 15.000 15.000 15.000 15.000 20.000 20.000 20.000 

 20.000 20.000 30.000 30.000 30.000 30.000 30.000 30.000 30.000 30.000 

 30.000 30.000 30.000 30.000 30.000 

 2.000 2.000 2.000 2.000 2.000 2.000 2.000 2.500 2.500 2.500 

 2.500 2.500 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 

 3.000 3.000 3.000 3.000 3.000 

* Block 2 (Heavy LDGT1, Light LDGT2 (EPA LD2&3)) 

 1.000 1.000 1.000 1.000 1.000 1.000 1.000 2.400 2.400 2.400 

 2.400 2.400 3.200 3.200 3.200 3.200 3.200 3.200 3.200 3.200 

 3.200 3.200 3.200 3.200 3.200 

 20.000 20.000 20.000 20.000 20.000 20.000 20.000 60.000 60.000 60.000 

 60.000 60.000 80.000 80.000 80.000 80.000 80.000 80.000 80.000 80.000 

 80.000 80.000 80.000 80.000 80.000 

 2.500 2.500 2.500 2.500 2.500 2.500 2.500 3.000 3.000 3.000 

 3.000 3.000 3.500 3.500 3.500 7.000 7.000 7.000 7.000 7.000 

 7.000 7.000 7.000 7.000 7.000 

* Block 3 (Heavy LDGT2(EPA LD4)) 

 2.400 2.400 2.400 2.400 2.400 2.400 2.400 2.400 2.400 2.400 

 2.400 2.400 3.200 3.200 3.200 3.200 3.200 3.200 3.200 3.200 

 3.200 3.200 3.200 3.200 3.200 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 80.000 80.000 80.000 80.000 80.000 80.000 80.000 80.000 

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C-16 

 80.000 80.000 80.000 80.000 80.000 

 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.500 4.500 4.500 

 4.500 4.500 5.000 5.000 5.000 7.000 7.000 7.000 7.000 7.000 

 7.000 7.000 7.000 7.000 7.000 

* Block 4 (HDGV) 

 2.400 2.400 2.400 2.400 2.400 3.000 3.000 3.000 3.000 3.000 

 3.000 3.000 3.200 3.200 3.200 3.200 5.000 5.000 6.000 6.000 

 6.000 6.000 6.000 6.000 6.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 80.000 80.000 80.000 80.000 80.000 80.000 100.000 100.000 

100.000 100.000 100.000 100.000 100.000 

 4.000 4.000 4.000 4.000 4.000 6.000 6.000 6.000 6.000 6.000 

 6.000 6.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 

 8.000 8.000 8.000 8.000 8.000 

Table D-9 

2008 Cut-Point Parameters for Maryland

* (SEE P. 16&17 OF EPA REPORT M6.IM.001) 

> CY 08 

> CUTPOINTS 75% TO FINAL for 1994 and 1995. IMPLEMENTED May 2005. 

I/M CUTPOINTS 

* Model Years 

* 08 07 06 05 04 03 02 01 00 99 

* 98 97 96 95 94 93 92 91 90 89 

* 88 87 86 85 84 

* Block 1 (LDGV, Light LDGT1(EPA LD1)) 

 0.900 0.900 0.900 0.900 0.900 0.900 0.900 0.900 0.900 0.900 

 0.900 0.900 0.900 0.900 0.900 1.000 1.000 1.000 1.400 1.400 

 1.400 1.800 1.800 1.800 1.800 

 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 

 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 30.000 30.000 

 30.000 30.000 30.000 30.000 30.000 

 2.100 2.100 2.100 2.100 2.100 2.100 2.100 2.100 2.100 2.100 

 2.100 2.100 2.100 2.100 2.100 2.200 2.200 2.200 2.500 2.500 

 2.500 2.800 2.800 2.800 2.800 

 

* Block 2 (Heavy LDGT1, Light LDGT2 (EPA LD2&3)) 

 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 

 1.800 1.800 1.800 1.800 1.800 2.000 2.000 2.000 2.400 2.400 

 2.400 2.800 2.800 2.800 2.800 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 80.000 80.000 

 80.000 80.000 80.000 80.000 80.000 

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56
ATTACHMENT C ATTACHMENT C 

C-17 

 2.600 2.600 2.600 2.600 2.600 2.600 2.600 2.600 2.600 2.600 

 2.600 2.600 2.600 2.600 2.600 2.700 2.700 2.700 3.000 3.000 

 3.000 5.800 5.800 5.800 5.800 

* 08 07 06 05 04 03 02 01 00 99 

* 98 97 96 95 94 93 92 91 90 89 

* 88 87 86 85 84 

* Block 3 (Heavy LDGT2(EPA LD4)) 

 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 

 1.800 1.800 1.800 1.800 1.800 2.000 2.000 2.000 2.400 2.400 

 2.400 2.900 2.900 2.900 2.900 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 80.000 80.000 

 80.000 80.000 80.000 80.000 80.000 

 3.700 3.700 3.700 3.700 3.700 3.700 3.700 3.700 3.700 3.700 

 3.700 3.700 3.700 3.700 3.700 4.000 4.000 4.000 4.200 4.200 

 4.200 6.600 6.600 6.600 6.600 

* 08 07 06 05 04 03 02 01 00 99 

* 98 97 96 95 94 93 92 91 90 89 

* 88 87 86 85 84 

* Block 4 (HDGV)(Idle Tested) 

 2.200 2.200 2.200 2.200 2.200 2.200 2.200 2.200 2.200 2.200 

 2.200 2.200 2.200 2.500 2.500 2.500 2.500 2.500 2.500 2.500 

 2.600 2.600 2.600 3.000 4.700 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 80.000 80.000 80.000 80.000 80.000 

 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 

 4.000 4.000 4.000 5.500 5.500 5.500 5.500 5.500 5.500 5.500 

 7.000 7.000 7.000 7.700 7.700 

Table D-10 

2009 Cut-Point Parameters for Maryland

* (SEE P. 16&17 OF EPA REPORT M6.IM.001) 

> CY 09 

> CUTPOINTS 75% TO FINAL for 1994 and 1995. IMPLEMENTED May 2005. 

I/M CUTPOINTS 

* Model Years 

* 09 08 07 06 05 04 03 02 01 00 

* 99 98 97 96 95 94 93 92 91 90 

* 89 88 87 86 85 

Appendix E1 - Page Number:

57
ATTACHMENT C ATTACHMENT C 

C-18 

* Block 1 (LDGV, Light LDGT1(EPA LD1)) 

 0.900 0.900 0.900 0.900 0.900 0.900 0.900 0.900 0.900 0.900 

 0.900 0.900 0.900 0.900 0.900 0.900 1.000 1.000 1.000 1.400 

 1.400 1.400 1.800 1.800 1.800 

 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 

 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 20.000 30.000 

 30.000 30.000 30.000 30.000 30.000 

 2.100 2.100 2.100 2.100 2.100 2.100 2.100 2.100 2.100 2.100 

 2.100 2.100 2.100 2.100 2.100 2.100 2.200 2.200 2.200 2.500 

 2.500 2.500 2.800 2.800 2.800 

 

* Block 2 (Heavy LDGT1, Light LDGT2 (EPA LD2&3)) 

 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 

 1.800 1.800 1.800 1.800 1.800 1.800 2.000 2.000 2.000 2.400 

 2.400 2.400 2.800 2.800 2.800 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 80.000 

 80.000 80.000 80.000 80.000 80.000 

 2.600 2.600 2.600 2.600 2.600 2.600 2.600 2.600 2.600 2.600 

 2.600 2.600 2.600 2.600 2.600 2.600 2.700 2.700 2.700 3.000 

 3.000 3.000 5.800 5.800 5.800 

* 09 08 07 06 05 04 03 02 01 00 

* 99 98 97 96 95 94 93 92 91 90 

* 89 88 87 86 85 

* Block 3 (Heavy LDGT2(EPA LD4)) 

 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 1.800 

 1.800 1.800 1.800 1.800 1.800 1.800 2.000 2.000 2.000 2.400 

 2.400 2.400 2.900 2.900 2.900 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 80.000 

 80.000 80.000 80.000 80.000 80.000 

 3.700 3.700 3.700 3.700 3.700 3.700 3.700 3.700 3.700 3.700 

 3.700 3.700 3.700 3.700 3.700 3.700 4.000 4.000 4.000 4.200 

 4.200 4.200 6.600 6.600 6.600 

* 09 08 07 06 05 04 03 02 01 00 

* 99 98 97 96 95 94 93 92 91 90 

* 89 88 87 86 85 

* Block 4 (HDGV)(Idle Tested) 

 2.200 2.200 2.200 2.200 2.200 2.200 2.200 2.200 2.200 2.200 

 2.200 2.200 2.200 2.500 2.500 2.500 2.500 2.500 2.500 2.500 

 2.600 2.600 2.600 3.000 4.700 

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ATTACHMENT C ATTACHMENT C 

C-19 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 60.000 

 80.000 80.000 80.000 80.000 80.000 

 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 

 4.000 4.000 4.000 5.500 5.500 5.500 5.500 5.500 5.500 5.500 

 7.000 7.000 7.000 7.700 7.700 

Anti-tampering Program Parameters

Details of the format for the Anti-tampering program (ATP) listed in Tables D-11 and D-12 

can found in the Mobile6 model user guide. 

Table D-11 

1990 Anti-tampering Program Parameters

The ATP existed only in Montgomery and Prince George’s in Maryland and in Arlington, 

Fairfax, Prince William, and Alexandria in Virginia in 1990. 

District of Columbia

ANTI-TAMP PROG : 

83 68 50 22222 22222111 1 12 096. 12211112 

Maryland

ANTI-TAMP PROG : 

89 77 50 22222 22222111 1 12 096. 12211111 

Virginia

ANTI-TAMP PROG : 

89 68 50 22222 21111111 1 12 098. 22212222 

Table D-12 

2008 & 2009 Anti-tampering Program Parameters

District of Columbia

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ATTACHMENT C ATTACHMENT C 

C-20 

ANTI-TAMP PROG : 

83 68 50 22222 22222111 1 12 096. 12211112 

Maryland

ANTI-TAMP PROG : 

89 77 50 22222 22222111 1 12 096. 12211112 (Montgomery & Prince George’s) 

ANTI-TAMP PROG : 

95 77 50 22222 22222111 1 12 096. 12211112 (Calvert, Charles, Fredrick) 

Virginia

ANTI-TAMP PROG : 

89 68 50 22222 21111111 1 12 098. 22112222 (Arlington, Fairfax, Prince William, 

Alexandria) 

ANTI-TAMP PROG : 

98 68 50 22222 21111111 1 12 098. 22112222 (Loudoun) 

 

Summer VMT Mix Fractions 

For 

Network, Local, and Auto-Access to Transit Analysis

Summer VMT mix fractions for network, local, and auto-access to transit analyses are being 

provided in Tables D-13 through D-18. VMT mix fractions are arranged in two rows in the 

format below for the 16 vehicle categories listed. Further details are available in the Mobile6 

model user guide. 

LDV LDT1 LDT2 LDT3 LDT4 HDV2B HDV3 HDV4 

HDV5 HDV6 HDV7 HDV8A HDV8B HDBS HDBT MC 

Table D-13 

2008 Summer VMT Mix Fractions 

For Network Analysis 

District of Columbia 

0.3701 0.0867 0.3032 0.1025 0.0501 0.0285 0.0028 0.0022 

0.0026 0.0066 0.0068 0.0094 0.0235 0.0000 0.0000 0.0050 

Calvert 

0.3779 0.0787 0.2997 0.1041 0.0523 0.0261 0.0027 0.0018 

0.0023 0.0077 0.0048 0.0069 0.0300 0.0000 0.0000 0.0050 

Charles 

0.3774 0.0779 0.3003 0.1045 0.0525 0.0287 0.0030 0.0021 

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ATTACHMENT C ATTACHMENT C 

C-21 

0.0024 0.0078 0.0063 0.0082 0.0239 0.0000 0.0000 0.0050 

Fredrick 

0.3679 0.0825 0.3061 0.1049 0.0515 0.0259 0.0026 0.0021 

0.0024 0.0071 0.0055 0.0072 0.0296 0.0000 0.0000 0.0047 

Montgomery 

0.3665 0.0841 0.3065 0.1054 0.0506 0.0269 0.0026 0.0021 

0.0024 0.0071 0.0058 0.0070 0.0283 0.0000 0.0000 0.0047 

Prince George’s 

0.3735 0.0813 0.3016 0.1044 0.0520 0.0263 0.0026 0.0021 

0.0023 0.0081 0.0058 0.0082 0.0267 0.0000 0.0000 0.0051 

Arlington 

0.3694 0.0843 0.3056 0.1041 0.0497 0.0291 0.0029 0.0024 

0.0024 0.0078 0.0050 0.0091 0.0234 0.0000 0.0000 0.0048 

Fairfax 

0.3671 0.0839 0.3050 0.1054 0.0516 0.0257 0.0024 0.0020 

0.0022 0.0070 0.0055 0.0075 0.0300 0.0000 0.0000 0.0047 

Loudoun 

0.3678 0.0822 0.3066 0.1049 0.0515 0.0259 0.0026 0.0022 

0.0024 0.0071 0.0056 0.0072 0.0293 0.0000 0.0000 0.0047 

Prince William 

0.3722 0.0806 0.3027 0.1051 0.0522 0.0248 0.0026 0.0020 

0.0023 0.0070 0.0058 0.0074 0.0303 0.0000 0.0000 0.0050 

Alexandria 

0.3694 0.0805 0.3076 0.1057 0.0498 0.0271 0.0025 0.0021 

0.0022 0.0080 0.0047 0.0073 0.0284 0.0000 0.0000 0.0047 

Table D-14 

2008 Summer VMT Mix Fractions 

For Local Analysis 

District of Columbia

0.3961 0.0928 0.3245 0.1097 0.0537 0.0062 0.0006 0.0005 

0.0006 0.0014 0.0015 0.0020 0.0050 0.0000 0.0000 0.0054 

Calvert 

0.4045 0.0842 0.3208 0.1114 0.0560 0.0057 0.0006 0.0004 

0.0005 0.0017 0.0010 0.0015 0.0063 0.0000 0.0000 0.0054 

Charles 

0.4039 0.0833 0.3214 0.1119 0.0562 0.0062 0.0006 0.0005 

0.0005 0.0017 0.0014 0.0018 0.0052 0.0000 0.0000 0.0054 

Fredrick 

0.3937 0.0883 0.3276 0.1123 0.0551 0.0056 0.0006 0.0005 

0.0005 0.0016 0.0012 0.0016 0.0063 0.0000 0.0000 0.0051 

Montgomery 

0.3922 0.0900 0.3280 0.1127 0.0542 0.0058 0.0006 0.0005 

0.0005 0.0016 0.0013 0.0015 0.0061 0.0000 0.0000 0.0050 

Prince George’s 

0.3997 0.0870 0.3227 0.1117 0.0556 0.0057 0.0006 0.0005 

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ATTACHMENT C ATTACHMENT C 

C-22 

0.0005 0.0018 0.0013 0.0018 0.0057 0.0000 0.0000 0.0054 

Arlington 

0.3953 0.0902 0.3270 0.1114 0.0532 0.0063 0.0006 0.0005 

0.0005 0.0017 0.0011 0.0020 0.0051 0.0000 0.0000 0.0051 

Fairfax 

0.3928 0.0898 0.3264 0.1127 0.0552 0.0056 0.0005 0.0004 

0.0005 0.0015 0.0012 0.0016 0.0067 0.0000 0.0000 0.0051 

Loudoun 

0.3936 0.0880 0.3281 0.1123 0.0551 0.0056 0.0006 0.0005 

0.0005 0.0015 0.0012 0.0016 0.0063 0.0000 0.0000 0.0051 

Prince William 

0.3983 0.0863 0.3239 0.1125 0.0558 0.0054 0.0006 0.0004 

0.0005 0.0015 0.0013 0.0016 0.0065 0.0000 0.0000 0.0054 

Alexandria 

0.3953 0.0862 0.3292 0.1132 0.0533 0.0059 0.0005 0.0005 

0.0005 0.0017 0.0010 0.0016 0.0061 0.0000 0.0000 0.0050 

Table D-15 

2008 Summer VMT Mix Fractions 

For Auto Access to Transit Analysis 

District of Columbia 

0.4033 0.0945 0.3304 0.1117 0.0546 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0055 

Calvert 

0.4118 0.0857 0.3266 0.1134 0.0570 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0055 

Charles 

0.4113 0.0848 0.3273 0.1139 0.0572 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0055 

Fredrick 

0.4008 0.0899 0.3336 0.1143 0.0562 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0052 

Montgomery 

0.3994 0.0917 0.3340 0.1148 0.0550 0.0000 0.0000 0.0000 

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ATTACHMENT C ATTACHMENT C 

C-23 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0051 

Prince George’s 

0.4070 0.0886 0.3286 0.1137 0.0566 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0055 

Arlington 

0.4025 0.0918 0.3329 0.1134 0.0542 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0052 

Fairfax 

0.4000 0.0914 0.3324 0.1148 0.0562 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0052 

Loudoun 

0.4008 0.0896 0.3340 0.1143 0.0561 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0052 

Prince William 

0.4055 0.0879 0.3298 0.1145 0.0568 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0055 

Alexandria 

0.4025 0.0877 0.3352 0.1152 0.0543 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0051 

Table D-16 

2009 Summer VMT Mix Fractions 

For Network Analysis 

District of Columbia 

0.3565 0.0888 0.3105 0.1050 0.0514 0.0287 0.0029 0.0023 

0.0026 0.0067 0.0068 0.0095 0.0233 0.0000 0.0000 0.0050 

Calvert 

0.3642 0.0806 0.3071 0.1066 0.0536 0.0263 0.0027 0.0018 

0.0023 0.0077 0.0048 0.0070 0.0303 0.0000 0.0000 0.0050 

Charles 

0.3637 0.0798 0.3077 0.1071 0.0539 0.0289 0.0030 0.0021 

0.0024 0.0079 0.0064 0.0083 0.0238 0.0000 0.0000 0.0050 

Fredrick 

0.3543 0.0845 0.3135 0.1074 0.0527 0.0261 0.0027 0.0022 

0.0024 0.0072 0.0056 0.0072 0.0295 0.0000 0.0000 0.0047 

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ATTACHMENT C ATTACHMENT C 

C-24 

Montgomery 

0.3529 0.0861 0.3138 0.1078 0.0518 0.0270 0.0026 0.0021 

0.0025 0.0072 0.0059 0.0071 0.0286 0.0000 0.0000 0.0046 

Prince George’s 

0.3598 0.0833 0.3089 0.1069 0.0533 0.0264 0.0026 0.0021 

0.0024 0.0082 0.0059 0.0082 0.0270 0.0000 0.0000 0.0050 

Arlington 

0.3557 0.0862 0.3130 0.1066 0.0509 0.0292 0.0030 0.0024 

0.0024 0.0079 0.0050 0.0092 0.0238 0.0000 0.0000 0.0047 

Fairfax 

0.3535 0.0858 0.3124 0.1078 0.0529 0.0258 0.0025 0.0021 

0.0023 0.0071 0.0056 0.0075 0.0300 0.0000 0.0000 0.0047 

Loudoun 

0.3542 0.0841 0.3140 0.1074 0.0527 0.0260 0.0027 0.0022 

0.0024 0.0071 0.0056 0.0073 0.0296 0.0000 0.0000 0.0047 

Prince William 

0.3585 0.0825 0.3101 0.1076 0.0535 0.0250 0.0027 0.0020 

0.0023 0.0070 0.0059 0.0075 0.0305 0.0000 0.0000 0.0049 

Alexandria 

0.3585 0.0825 0.3101 0.1076 0.0535 0.0250 0.0027 0.0020 

0.0023 0.0070 0.0059 0.0075 0.0305 0.0000 0.0000 0.0049 

Table D-17 

2009 Summer VMT Mix Fractions 

For Local Analysis 

District of Columbia 

0.3817 0.0951 0.3324 0.1124 0.0550 0.0063 0.0006 0.0005 

0.0006 0.0015 0.0015 0.0021 0.0050 0.0000 0.0000 0.0053 

Calvert 

0.3900 0.0863 0.3288 0.1141 0.0574 0.0057 0.0006 0.0004 

0.0005 0.0017 0.0010 0.0015 0.0067 0.0000 0.0000 0.0053 

Charles 

0.3894 0.0854 0.3295 0.1146 0.0577 0.0063 0.0007 0.0005 

0.0005 0.0017 0.0014 0.0018 0.0052 0.0000 0.0000 0.0053 

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ATTACHMENT C ATTACHMENT C 

C-25 

Fredrick 

0.3793 0.0905 0.3356 0.1150 0.0565 0.0057 0.0006 0.0005 

0.0005 0.0016 0.0012 0.0016 0.0064 0.0000 0.0000 0.0050 

Montgomery 

0.3779 0.0922 0.3360 0.1154 0.0555 0.0059 0.0006 0.0005 

0.0005 0.0016 0.0013 0.0015 0.0062 0.0000 0.0000 0.0049 

Prince George’s 

0.3852 0.0891 0.3307 0.1144 0.0570 0.0058 0.0006 0.0005 

0.0005 0.0018 0.0013 0.0018 0.0060 0.0000 0.0000 0.0053 

Arlington 

0.3809 0.0923 0.3351 0.1141 0.0545 0.0064 0.0006 0.0005 

0.0005 0.0017 0.0011 0.0020 0.0052 0.0000 0.0000 0.0051 

Fairfax 

0.3785 0.0919 0.3345 0.1155 0.0566 0.0056 0.0005 0.0005 

0.0005 0.0015 0.0012 0.0016 0.0066 0.0000 0.0000 0.0050 

Loudoun 

0.3793 0.0900 0.3362 0.1150 0.0565 0.0057 0.0006 0.0005 

0.0005 0.0016 0.0012 0.0016 0.0063 0.0000 0.0000 0.0050 

Prince William 

0.3839 0.0883 0.3320 0.1152 0.0572 0.0055 0.0006 0.0004 

0.0005 0.0015 0.0013 0.0016 0.0067 0.0000 0.0000 0.0053 

Alexandria 

0.3839 0.0883 0.3320 0.1152 0.0572 0.0055 0.0006 0.0004 

0.0005 0.0015 0.0013 0.0016 0.0067 0.0000 0.0000 0.0053 

Table D-18 

2009 Summer VMT Mix Fractions 

For Auto Access to Transit Analysis 

District of Columbia 

0.3887 0.0968 0.3386 0.1145 0.0560 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0054 

Calvert 

0.3971 0.0879 0.3349 0.1162 0.0585 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0054 

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ATTACHMENT C ATTACHMENT C 

C-26 

Charles 

0.3966 0.0870 0.3355 0.1168 0.0587 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0054 

Fredrick 

0.3863 0.0922 0.3418 0.1171 0.0575 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0051 

Montgomery 

0.3848 0.0939 0.3422 0.1176 0.0565 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0050 

Prince George’s 

0.3923 0.0908 0.3368 0.1165 0.0582 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0054 

Arlington 

0.3879 0.0940 0.3413 0.1162 0.0554 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0052 

Fairfax 

0.3855 0.0936 0.3406 0.1176 0.0576 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0051 

Loudoun 

0.3862 0.0917 0.3424 0.1171 0.0575 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0051 

Prince William 

0.3909 0.0899 0.3381 0.1173 0.0584 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0054 

Alexandria 

0.3880 0.0898 0.3435 0.1181 0.0556 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0050 

Diesel Sales Fractions

The diesel sales fractions are presented by vehicle, year-specific model year, and going back 25 model 

years. The order in which data for the 14 vehicle classes appear is listed below. Data are arranged in 

blocks, one each for a particular vehicle class. Since, the Mobile6 model assumes 25 model years of 

vehicles operating in a given year, each block has 25 data sets. Thus, 14 blocks of data representing 

Appendix E1 - Page Number:

66
ATTACHMENT C ATTACHMENT C 

C-27 

14 vehicle classes are provided for each jurisdiction. Fuether details can be found in the Mobile6 

model user guide. Since, buses were modeled separately from other vehicles, the diesel sales fractions 

for the school bus analysis are also provided in this section. 

* LDV 

* LDT1 

* LDT2 

* LDT3 

* LDT4 

* HDV2B 

* HDV3 

* HDV4 

* HDV5 

* HDV6 

* HDV7 

* HDV8A 

* HDV8B 

* HDBS 

District of Columbia—2008 Diesel Sales Fractions 

0.0069 0.0069 0.0069 0.0069 0.0034 0.0033 0.0041 0.0024 0.0021 0.0031 

Appendix E1 - Page Number:

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ATTACHMENT C ATTACHMENT C 

C-28 

0.0023 0.0014 0.0019 0.0018 0.0004 0.0013 0.0022 0.0052 0.0011 0.0007 

0.0004 0.0254 0.0145 0.0810 0.1074 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0007 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0026 0.0000 0.0095 0.0000 

0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0008 0.0055 0.0042 0.0184 

0.0000 0.0000 0.0000 0.0000 0.0003 0.0000 0.0000 0.0000 0.0000 0.0004 

0.0011 0.0004 0.0025 0.0074 0.0025 0.0020 0.0004 0.0066 0.0054 0.0080 

0.0100 0.0080 0.0169 0.0183 0.0138 

0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 0.0000 0.0006 0.0005 

0.0004 0.0059 0.0132 0.0143 0.0157 0.0055 0.0093 0.0162 0.0265 0.0101 

0.0042 0.0565 0.0426 0.1039 0.3571 

0.2842 0.2842 0.2842 0.2842 0.2877 0.2267 0.2410 0.2146 0.1964 0.2813 

0.2215 0.3259 0.2871 0.2288 0.2437 0.2892 0.1783 0.2108 0.1840 0.1704 

0.1768 0.3180 0.2264 0.1842 0.1705 

0.6920 0.6920 0.6920 0.6920 0.5182 0.5888 0.5212 0.5059 0.5464 0.6452 

0.3770 0.4036 0.5319 0.4307 0.3971 0.4370 0.4046 0.4078 0.4022 0.3784 

0.3768 0.3828 0.3850 0.1802 0.2453 

0.8471 0.8471 0.8471 0.8471 0.7536 0.6021 0.5442 0.4812 0.5993 0.5740 

0.5889 0.5336 0.4756 0.5749 0.3595 0.6304 0.2527 0.2874 0.3319 0.3364 

0.3089 0.0588 0.0000 0.0000 0.0204 

0.9489 0.9489 0.9489 0.9489 0.9324 0.9206 0.8756 0.9423 0.8398 0.7490 

0.6250 0.2800 0.5227 0.3896 0.5893 0.8571 0.7241 0.6667 0.6500 0.6667 

0.3333 0.6400 0.6429 0.2727 0.6667 

0.9620 0.9620 0.9620 0.9620 0.8197 0.8232 0.8738 0.9151 0.8593 0.8032 

0.8683 0.9441 0.9469 0.9574 0.8973 0.9304 0.6270 0.7679 0.8333 0.6154 

0.6341 0.6588 0.5625 0.5833 0.5769 

1.0000 1.0000 1.0000 1.0000 0.9714 1.0000 1.0000 0.9940 0.9777 0.9048 

0.9191 0.8552 0.9082 0.9806 0.9244 0.9722 0.9424 0.9444 0.9078 0.8663 

0.9217 0.8519 0.7363 0.8144 0.8413 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9980 0.9979 1.0000 

1.0000 1.0000 1.0000 0.9969 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 0.9767 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

68
ATTACHMENT C ATTACHMENT C 

C-29 

Calvert County, MD—2008 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 0.0033 

0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 0.0007 

0.0004 0.0273 0.0153 0.0837 0.1125 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0028 0.0000 0.0105 0.0000 

0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0010 0.0054 0.0049 0.0197 

0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 0.0004 

0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 0.0068 

0.0109 0.0089 0.0169 0.0157 0.0154 

0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 0.0005 

0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 0.0116 

0.0047 0.0409 0.0471 0.1212 0.3846 

0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 0.2699 

0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 0.1640 

0.1822 0.2488 0.2290 0.1937 0.1835 

0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 0.6704 

0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 0.3949 

0.3810 0.3972 0.4031 0.1869 0.2574 

0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 0.5885 

0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 0.3672 

0.3452 0.0147 0.0000 0.0000 0.0256 

0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 0.7162 

0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 0.7692 

0.3571 0.6190 0.2857 0.2500 0.6667 

0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 0.7971 

0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 0.5889 

0.6129 0.6769 0.5333 0.5294 0.6279 

1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 0.8961 

0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 0.8625 

0.9161 0.8403 0.7412 0.8202 0.8276 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 1.0000 

1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 0.9759 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

69
ATTACHMENT C ATTACHMENT C 

C-30 

Charles County, MD—2008 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 0.0033 

0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 0.0007 

0.0004 0.0273 0.0153 0.0837 0.1125 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0028 0.0000 0.0105 0.0000 

0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0010 0.0054 0.0049 0.0197 

0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 0.0004 

0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 0.0068 

0.0109 0.0089 0.0169 0.0157 0.0154 

0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 0.0005 

0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 0.0116 

0.0047 0.0409 0.0471 0.1212 0.3846 

0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 0.2699 

0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 0.1640 

0.1822 0.2488 0.2290 0.1937 0.1835 

0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 0.6704 

0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 0.3949 

0.3810 0.3972 0.4031 0.1869 0.2574 

0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 0.5885 

0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 0.3672 

0.3452 0.0147 0.0000 0.0000 0.0256 

0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 0.7162 

0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 0.7692 

0.3571 0.6190 0.2857 0.2500 0.6667 

0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 0.7971 

0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 0.5889 

0.6129 0.6769 0.5333 0.5294 0.6279 

1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 0.8961 

0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 0.8625 

0.9161 0.8403 0.7412 0.8202 0.8276 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 1.0000 

1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 0.9759 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

70
ATTACHMENT C ATTACHMENT C 

C-31 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Frederick County, MD—2008 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 0.0033 

0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 0.0007 

0.0004 0.0273 0.0153 0.0837 0.1125 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0028 0.0000 0.0105 0.0000 

0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0010 0.0054 0.0049 0.0197 

0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 0.0004 

0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 0.0068 

0.0109 0.0089 0.0169 0.0157 0.0154 

0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 0.0005 

0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 0.0116 

0.0047 0.0409 0.0471 0.1212 0.3846 

0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 0.2699 

0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 0.1640 

0.1822 0.2488 0.2290 0.1937 0.1835 

0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 0.6704 

0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 0.3949 

0.3810 0.3972 0.4031 0.1869 0.2574 

0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 0.5885 

0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 0.3672 

0.3452 0.0147 0.0000 0.0000 0.0256 

0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 0.7162 

0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 0.7692 

0.3571 0.6190 0.2857 0.2500 0.6667 

0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 0.7971 

0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 0.5889 

0.6129 0.6769 0.5333 0.5294 0.6279 

1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 0.8961 

0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 0.8625 

0.9161 0.8403 0.7412 0.8202 0.8276 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 1.0000 

1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 0.9759 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

71
ATTACHMENT C ATTACHMENT C 

C-32 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Montgomery County, MD—2008 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 0.0033 

0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 0.0007 

0.0004 0.0273 0.0153 0.0837 0.1125 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0028 0.0000 0.0105 0.0000 

0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0010 0.0054 0.0049 0.0197 

0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 0.0004 

0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 0.0068 

0.0109 0.0089 0.0169 0.0157 0.0154 

0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 0.0005 

0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 0.0116 

0.0047 0.0409 0.0471 0.1212 0.3846 

0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 0.2699 

0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 0.1640 

0.1822 0.2488 0.2290 0.1937 0.1835 

0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 0.6704 

0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 0.3949 

0.3810 0.3972 0.4031 0.1869 0.2574 

0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 0.5885 

0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 0.3672 

0.3452 0.0147 0.0000 0.0000 0.0256 

0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 0.7162 

0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 0.7692 

0.3571 0.6190 0.2857 0.2500 0.6667 

0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 0.7971 

0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 0.5889 

0.6129 0.6769 0.5333 0.5294 0.6279 

1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 0.8961 

0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 0.8625 

0.9161 0.8403 0.7412 0.8202 0.8276 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 1.0000 

Appendix E1 - Page Number:

72
ATTACHMENT C ATTACHMENT C 

C-33 

1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 0.9759 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Prince George’s County, MD—2008 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 0.0033 

0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 0.0007 

0.0004 0.0273 0.0153 0.0837 0.1125 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0028 0.0000 0.0105 0.0000 

0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0010 0.0054 0.0049 0.0197 

0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 0.0004 

0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 0.0068 

0.0109 0.0089 0.0169 0.0157 0.0154 

0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 0.0005 

0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 0.0116 

0.0047 0.0409 0.0471 0.1212 0.3846 

0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 0.2699 

0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 0.1640 

0.1822 0.2488 0.2290 0.1937 0.1835 

0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 0.6704 

0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 0.3949 

0.3810 0.3972 0.4031 0.1869 0.2574 

0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 0.5885 

0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 0.3672 

0.3452 0.0147 0.0000 0.0000 0.0256 

0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 0.7162 

0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 0.7692 

0.3571 0.6190 0.2857 0.2500 0.6667 

0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 0.7971 

0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 0.5889 

0.6129 0.6769 0.5333 0.5294 0.6279 

1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 0.8961 

Appendix E1 - Page Number:

73
ATTACHMENT C ATTACHMENT C 

C-34 

0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 0.8625 

0.9161 0.8403 0.7412 0.8202 0.8276 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 1.0000 

1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 0.9759 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Alexandria, VA—2008 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 0.0026 

0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 0.0011 

0.0004 0.0219 0.0110 0.0943 0.1164 

0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0260 0.0135 

0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 0.0000 

0.0000 0.0016 0.0077 0.0060 0.0279 

0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 0.0009 

0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 0.0053 

0.0130 0.0146 0.0123 0.0167 0.0262 

0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 0.0011 

0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 0.0166 

0.0115 0.0086 0.0962 0.0938 0.3333 

0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 0.2679 

0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 0.1884 

0.1637 0.1926 0.2264 0.2242 0.2134 

0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 0.5621 

0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 0.4867 

0.4851 0.5549 0.4272 0.2051 0.2794 

0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 0.5622 

0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 0.3740 

0.3186 0.0811 0.0000 0.0294 0.0000 

0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 0.8516 

0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 0.5000 

0.2941 0.8000 0.0000 0.2500 0.0000 

0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 0.8046 

Appendix E1 - Page Number:

74
ATTACHMENT C ATTACHMENT C 

C-35 

0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 0.7538 

0.6667 0.5692 0.3867 0.4314 0.5556 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 0.9325 

0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 0.9048 

0.8433 0.8151 0.6709 0.7429 0.8222 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 0.9964 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 0.9744 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Arlington County, VA—2008 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 0.0026 

0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 0.0011 

0.0004 0.0219 0.0110 0.0943 0.1164 

0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0260 0.0135 

0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 0.0000 

0.0000 0.0016 0.0077 0.0060 0.0279 

0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 0.0009 

0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 0.0053 

0.0130 0.0146 0.0123 0.0167 0.0262 

0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 0.0011 

0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 0.0166 

0.0115 0.0086 0.0962 0.0938 0.3333 

0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 0.2679 

0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 0.1884 

0.1637 0.1926 0.2264 0.2242 0.2134 

0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 0.5621 

0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 0.4867 

0.4851 0.5549 0.4272 0.2051 0.2794 

0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 0.5622 

0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 0.3740 

0.3186 0.0811 0.0000 0.0294 0.0000 

0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 0.8516 

Appendix E1 - Page Number:

75
ATTACHMENT C ATTACHMENT C 

C-36 

0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 0.5000 

0.2941 0.8000 0.0000 0.2500 0.0000 

0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 0.8046 

0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 0.7538 

0.6667 0.5692 0.3867 0.4314 0.5556 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 0.9325 

0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 0.9048 

0.8433 0.8151 0.6709 0.7429 0.8222 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 0.9964 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 0.9744 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Fairfax County, VA—2008 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 0.0026 

0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 0.0011 

0.0004 0.0219 0.0110 0.0943 0.1164 

0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0260 0.0135 

0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 0.0000 

0.0000 0.0016 0.0077 0.0060 0.0279 

0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 0.0009 

0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 0.0053 

0.0130 0.0146 0.0123 0.0167 0.0262 

0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 0.0011 

0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 0.0166 

0.0115 0.0086 0.0962 0.0938 0.3333 

0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 0.2679 

0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 0.1884 

0.1637 0.1926 0.2264 0.2242 0.2134 

0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 0.5621 

0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 0.4867 

0.4851 0.5549 0.4272 0.2051 0.2794 

0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 0.5622 

Appendix E1 - Page Number:

76
ATTACHMENT C ATTACHMENT C 

C-37 

0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 0.3740 

0.3186 0.0811 0.0000 0.0294 0.0000 

0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 0.8516 

0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 0.5000 

0.2941 0.8000 0.0000 0.2500 0.0000 

0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 0.8046 

0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 0.7538 

0.6667 0.5692 0.3867 0.4314 0.5556 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 0.9325 

0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 0.9048 

0.8433 0.8151 0.6709 0.7429 0.8222 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 0.9964 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 0.9744 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Loudoun County, VA—2008 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 0.0026 

0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 0.0011 

0.0004 0.0219 0.0110 0.0943 0.1164 

0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0260 0.0135 

0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 0.0000 

0.0000 0.0016 0.0077 0.0060 0.0279 

0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 0.0009 

0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 0.0053 

0.0130 0.0146 0.0123 0.0167 0.0262 

0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 0.0011 

0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 0.0166 

0.0115 0.0086 0.0962 0.0938 0.3333 

0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 0.2679 

0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 0.1884 

0.1637 0.1926 0.2264 0.2242 0.2134 

0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 0.5621 

Appendix E1 - Page Number:

77
ATTACHMENT C ATTACHMENT C 

C-38 

0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 0.4867 

0.4851 0.5549 0.4272 0.2051 0.2794 

0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 0.5622 

0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 0.3740 

0.3186 0.0811 0.0000 0.0294 0.0000 

0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 0.8516 

0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 0.5000 

0.2941 0.8000 0.0000 0.2500 0.0000 

0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 0.8046 

0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 0.7538 

0.6667 0.5692 0.3867 0.4314 0.5556 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 0.9325 

0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 0.9048 

0.8433 0.8151 0.6709 0.7429 0.8222 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 0.9964 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 0.9744 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Prince William County, VA—2008 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 0.0026 

0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 0.0011 

0.0004 0.0219 0.0110 0.0943 0.1164 

0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0260 0.0135 

0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 0.0000 

0.0000 0.0016 0.0077 0.0060 0.0279 

0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 0.0009 

0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 0.0053 

0.0130 0.0146 0.0123 0.0167 0.0262 

0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 0.0011 

0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 0.0166 

0.0115 0.0086 0.0962 0.0938 0.3333 

0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 0.2679 

Appendix E1 - Page Number:

78
ATTACHMENT C ATTACHMENT C 

C-39 

0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 0.1884 

0.1637 0.1926 0.2264 0.2242 0.2134 

0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 0.5621 

0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 0.4867 

0.4851 0.5549 0.4272 0.2051 0.2794 

0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 0.5622 

0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 0.3740 

0.3186 0.0811 0.0000 0.0294 0.0000 

0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 0.8516 

0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 0.5000 

0.2941 0.8000 0.0000 0.2500 0.0000 

0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 0.8046 

0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 0.7538 

0.6667 0.5692 0.3867 0.4314 0.5556 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 0.9325 

0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 0.9048 

0.8433 0.8151 0.6709 0.7429 0.8222 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 0.9964 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 0.9744 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

District of Columbia—2009 Diesel Sales Fractions 

0.0069 0.0069 0.0069 0.0069 0.0069 0.0034 0.0033 0.0041 0.0024 0.0021 

0.0031 0.0023 0.0014 0.0019 0.0018 0.0004 0.0013 0.0022 0.0052 0.0011 

0.0007 0.0004 0.0254 0.0145 0.0810 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0007 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0026 0.0000 0.0095 

0.0009 0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0008 0.0055 0.0042 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0003 0.0000 0.0000 0.0000 0.0000 

0.0004 0.0011 0.0004 0.0025 0.0074 0.0025 0.0020 0.0004 0.0066 0.0054 

0.0080 0.0100 0.0080 0.0169 0.0183 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 0.0000 0.0000 0.0006 

0.0005 0.0004 0.0059 0.0132 0.0143 0.0157 0.0055 0.0093 0.0162 0.0265 

Appendix E1 - Page Number:

79
ATTACHMENT C ATTACHMENT C 

C-40 

0.0101 0.0042 0.0565 0.0426 0.1039 

0.2842 0.2842 0.2842 0.2842 0.2842 0.2877 0.2267 0.2410 0.2146 0.1964 

0.2813 0.2215 0.3259 0.2871 0.2288 0.2437 0.2892 0.1783 0.2108 0.1840 

0.1704 0.1768 0.3180 0.2264 0.1842 

0.6920 0.6920 0.6920 0.6920 0.6920 0.5182 0.5888 0.5212 0.5059 0.5464 

0.6452 0.3770 0.4036 0.5319 0.4307 0.3971 0.4370 0.4046 0.4078 0.4022 

0.3784 0.3768 0.3828 0.3850 0.1802 

0.8471 0.8471 0.8471 0.8471 0.8471 0.7536 0.6021 0.5442 0.4812 0.5993 

0.5740 0.5889 0.5336 0.4756 0.5749 0.3595 0.6304 0.2527 0.2874 0.3319 

0.3364 0.3089 0.0588 0.0000 0.0000 

0.9489 0.9489 0.9489 0.9489 0.9489 0.9324 0.9206 0.8756 0.9423 0.8398 

0.7490 0.6250 0.2800 0.5227 0.3896 0.5893 0.8571 0.7241 0.6667 0.6500 

0.6667 0.3333 0.6400 0.6429 0.2727 

0.9620 0.9620 0.9620 0.9620 0.9620 0.8197 0.8232 0.8738 0.9151 0.8593 

0.8032 0.8683 0.9441 0.9469 0.9574 0.8973 0.9304 0.6270 0.7679 0.8333 

0.6154 0.6341 0.6588 0.5625 0.5833 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9714 1.0000 1.0000 0.9940 0.9777 

0.9048 0.9191 0.8552 0.9082 0.9806 0.9244 0.9722 0.9424 0.9444 0.9078 

0.8663 0.9217 0.8519 0.7363 0.8144 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9980 0.9979 

1.0000 1.0000 1.0000 1.0000 0.9969 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 0.9767 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Calvert County, MD—2009 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 

0.0033 0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 

0.0007 0.0004 0.0273 0.0153 0.0837 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0028 0.0000 0.0105 

0.0009 0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0010 0.0054 0.0049 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 

0.0004 0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 

Appendix E1 - Page Number:

80
ATTACHMENT C ATTACHMENT C 

C-41 

0.0068 0.0109 0.0089 0.0169 0.0157 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 

0.0005 0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 

0.0116 0.0047 0.0409 0.0471 0.1212 

0.2928 0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 

0.2699 0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 

0.1640 0.1822 0.2488 0.2290 0.1937 

0.6980 0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 

0.6704 0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 

0.3949 0.3810 0.3972 0.4031 0.1869 

0.8471 0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 

0.5885 0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 

0.3672 0.3452 0.0147 0.0000 0.0000 

0.9574 0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 

0.7162 0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 

0.7692 0.3571 0.6190 0.2857 0.2500 

0.9614 0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 

0.7971 0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 

0.5889 0.6129 0.6769 0.5333 0.5294 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 

0.8961 0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 

0.8625 0.9161 0.8403 0.7412 0.8202 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 

1.0000 1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 0.9759 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Charles County, MD—2009 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 

0.0033 0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 

0.0007 0.0004 0.0273 0.0153 0.0837 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0028 0.0000 0.0105 

0.0009 0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

Appendix E1 - Page Number:

81
ATTACHMENT C ATTACHMENT C 

C-42 

0.0000 0.0000 0.0010 0.0054 0.0049 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 

0.0004 0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 

0.0068 0.0109 0.0089 0.0169 0.0157 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 

0.0005 0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 

0.0116 0.0047 0.0409 0.0471 0.1212 

0.2928 0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 

0.2699 0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 

0.1640 0.1822 0.2488 0.2290 0.1937 

0.6980 0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 

0.6704 0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 

0.3949 0.3810 0.3972 0.4031 0.1869 

0.8471 0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 

0.5885 0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 

0.3672 0.3452 0.0147 0.0000 0.0000 

0.9574 0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 

0.7162 0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 

0.7692 0.3571 0.6190 0.2857 0.2500 

0.9614 0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 

0.7971 0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 

0.5889 0.6129 0.6769 0.5333 0.5294 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 

0.8961 0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 

0.8625 0.9161 0.8403 0.7412 0.8202 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 

1.0000 1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 0.9759 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Frederick County, MD—2009 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 

0.0033 0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 

0.0007 0.0004 0.0273 0.0153 0.0837 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

Appendix E1 - Page Number:

82
ATTACHMENT C ATTACHMENT C 

C-43 

0.0000 0.0000 0.0028 0.0000 0.0105 

0.0009 0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0010 0.0054 0.0049 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 

0.0004 0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 

0.0068 0.0109 0.0089 0.0169 0.0157 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 

0.0005 0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 

0.0116 0.0047 0.0409 0.0471 0.1212 

0.2928 0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 

0.2699 0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 

0.1640 0.1822 0.2488 0.2290 0.1937 

0.6980 0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 

0.6704 0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 

0.3949 0.3810 0.3972 0.4031 0.1869 

0.8471 0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 

0.5885 0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 

0.3672 0.3452 0.0147 0.0000 0.0000 

0.9574 0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 

0.7162 0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 

0.7692 0.3571 0.6190 0.2857 0.2500 

0.9614 0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 

0.7971 0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 

0.5889 0.6129 0.6769 0.5333 0.5294 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 

0.8961 0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 

0.8625 0.9161 0.8403 0.7412 0.8202 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 

1.0000 1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 0.9759 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Montgomery County, MD—2009 Diesel Sales Fractions 

0.0068 0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 

0.0033 0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 

Appendix E1 - Page Number:

83
ATTACHMENT C ATTACHMENT C 

C-44 

0.0007 0.0004 0.0273 0.0153 0.0837 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0028 0.0000 0.0105 

0.0009 0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0010 0.0054 0.0049 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 

0.0004 0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 

0.0068 0.0109 0.0089 0.0169 0.0157 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 

0.0005 0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 

0.0116 0.0047 0.0409 0.0471 0.1212 

0.2928 0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 

0.2699 0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 

0.1640 0.1822 0.2488 0.2290 0.1937 

0.6980 0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 

0.6704 0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 

0.3949 0.3810 0.3972 0.4031 0.1869 

0.8471 0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 

0.5885 0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 

0.3672 0.3452 0.0147 0.0000 0.0000 

0.9574 0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 

0.7162 0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 

0.7692 0.3571 0.6190 0.2857 0.2500 

0.9614 0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 

0.7971 0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 

0.5889 0.6129 0.6769 0.5333 0.5294 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 

0.8961 0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 

0.8625 0.9161 0.8403 0.7412 0.8202 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 

1.0000 1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 0.9759 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Prince George’s County, MD—2009 Diesel Sales Fractions 

Appendix E1 - Page Number:

84
ATTACHMENT C ATTACHMENT C 

C-45 

0.0068 0.0068 0.0068 0.0068 0.0068 0.0036 0.0034 0.0043 0.0025 0.0022 

0.0033 0.0022 0.0013 0.0020 0.0019 0.0004 0.0013 0.0023 0.0055 0.0010 

0.0007 0.0004 0.0273 0.0153 0.0837 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0008 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0028 0.0000 0.0105 

0.0009 0.0009 0.0009 0.0009 0.0009 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0010 0.0054 0.0049 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0000 0.0000 0.0000 0.0000 

0.0004 0.0012 0.0004 0.0028 0.0079 0.0025 0.0023 0.0005 0.0034 0.0050 

0.0068 0.0109 0.0089 0.0169 0.0157 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0009 0.0000 0.0000 0.0000 0.0007 

0.0005 0.0004 0.0065 0.0146 0.0155 0.0172 0.0059 0.0102 0.0183 0.0288 

0.0116 0.0047 0.0409 0.0471 0.1212 

0.2928 0.2928 0.2928 0.2928 0.2928 0.2976 0.2356 0.2420 0.2112 0.2042 

0.2699 0.1572 0.3314 0.3080 0.2452 0.2608 0.3049 0.1870 0.2342 0.2041 

0.1640 0.1822 0.2488 0.2290 0.1937 

0.6980 0.6980 0.6980 0.6980 0.6980 0.5259 0.5592 0.5244 0.5352 0.5490 

0.6704 0.3799 0.4052 0.5667 0.4346 0.4041 0.5274 0.4444 0.4184 0.4094 

0.3949 0.3810 0.3972 0.4031 0.1869 

0.8471 0.8471 0.8471 0.8471 0.8471 0.7544 0.6182 0.5973 0.5135 0.6372 

0.5885 0.4375 0.5714 0.5261 0.6081 0.3929 0.6087 0.2828 0.3258 0.3876 

0.3672 0.3452 0.0147 0.0000 0.0000 

0.9574 0.9574 0.9574 0.9574 0.9574 0.9273 0.9192 0.8563 0.9392 0.8368 

0.7162 0.6230 0.2394 0.4878 0.3611 0.5818 0.8529 0.7308 0.6250 0.6667 

0.7692 0.3571 0.6190 0.2857 0.2500 

0.9614 0.9614 0.9614 0.9614 0.9614 0.8207 0.8262 0.8649 0.9118 0.8547 

0.7971 0.8663 0.9486 0.9623 0.9677 0.9380 0.9379 0.6271 0.7849 0.8396 

0.5889 0.6129 0.6769 0.5333 0.5294 

1.0000 1.0000 1.0000 1.0000 1.0000 0.9697 1.0000 1.0000 0.9933 0.9748 

0.8961 0.9147 0.8521 0.9053 0.9774 0.9192 0.9667 0.9369 0.9470 0.9271 

0.8625 0.9161 0.8403 0.7412 0.8202 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9975 0.9978 

1.0000 1.0000 1.0000 1.0000 0.9968 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 0.9759 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

85
ATTACHMENT C ATTACHMENT C 

C-46 

Alexandria, VA—2009 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 

0.0026 0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 

0.0011 0.0004 0.0219 0.0110 0.0943 

0.0113 0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0260 

0.0005 0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 

0.0000 0.0000 0.0016 0.0077 0.0060 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 

0.0009 0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 

0.0053 0.0130 0.0146 0.0123 0.0167 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 

0.0011 0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 

0.0166 0.0115 0.0086 0.0962 0.0938 

0.2740 0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 

0.2679 0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 

0.1884 0.1637 0.1926 0.2264 0.2242 

0.6954 0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 

0.5621 0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 

0.4867 0.4851 0.5549 0.4272 0.2051 

0.8500 0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 

0.5622 0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 

0.3740 0.3186 0.0811 0.0000 0.0294 

0.8750 0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 

0.8516 0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 

0.5000 0.2941 0.8000 0.0000 0.2500 

0.9516 0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 

0.8046 0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 

0.7538 0.6667 0.5692 0.3867 0.4314 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 

0.9325 0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 

0.9048 0.8433 0.8151 0.6709 0.7429 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 

0.9964 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

86
ATTACHMENT C ATTACHMENT C 

C-47 

Arlington County, VA—2009 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 

0.0026 0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 

0.0011 0.0004 0.0219 0.0110 0.0943 

0.0113 0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0260 

0.0005 0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 

0.0000 0.0000 0.0016 0.0077 0.0060 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 

0.0009 0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 

0.0053 0.0130 0.0146 0.0123 0.0167 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 

0.0011 0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 

0.0166 0.0115 0.0086 0.0962 0.0938 

0.2740 0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 

0.2679 0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 

0.1884 0.1637 0.1926 0.2264 0.2242 

0.6954 0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 

0.5621 0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 

0.4867 0.4851 0.5549 0.4272 0.2051 

0.8500 0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 

0.5622 0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 

0.3740 0.3186 0.0811 0.0000 0.0294 

0.8750 0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 

0.8516 0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 

0.5000 0.2941 0.8000 0.0000 0.2500 

0.9516 0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 

0.8046 0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 

0.7538 0.6667 0.5692 0.3867 0.4314 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 

0.9325 0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 

0.9048 0.8433 0.8151 0.6709 0.7429 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 

0.9964 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

87
ATTACHMENT C ATTACHMENT C 

C-48 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Fairfax County, VA—2009 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 

0.0026 0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 

0.0011 0.0004 0.0219 0.0110 0.0943 

0.0113 0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0260 

0.0005 0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 

0.0000 0.0000 0.0016 0.0077 0.0060 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 

0.0009 0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 

0.0053 0.0130 0.0146 0.0123 0.0167 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 

0.0011 0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 

0.0166 0.0115 0.0086 0.0962 0.0938 

0.2740 0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 

0.2679 0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 

0.1884 0.1637 0.1926 0.2264 0.2242 

0.6954 0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 

0.5621 0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 

0.4867 0.4851 0.5549 0.4272 0.2051 

0.8500 0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 

0.5622 0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 

0.3740 0.3186 0.0811 0.0000 0.0294 

0.8750 0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 

0.8516 0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 

0.5000 0.2941 0.8000 0.0000 0.2500 

0.9516 0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 

0.8046 0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 

0.7538 0.6667 0.5692 0.3867 0.4314 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 

0.9325 0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 

0.9048 0.8433 0.8151 0.6709 0.7429 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 

0.9964 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

88
ATTACHMENT C ATTACHMENT C 

C-49 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Loudoun County, VA—2009 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 

0.0026 0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 

0.0011 0.0004 0.0219 0.0110 0.0943 

0.0113 0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0260 

0.0005 0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 

0.0000 0.0000 0.0016 0.0077 0.0060 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 

0.0009 0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 

0.0053 0.0130 0.0146 0.0123 0.0167 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 

0.0011 0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 

0.0166 0.0115 0.0086 0.0962 0.0938 

0.2740 0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 

0.2679 0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 

0.1884 0.1637 0.1926 0.2264 0.2242 

0.6954 0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 

0.5621 0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 

0.4867 0.4851 0.5549 0.4272 0.2051 

0.8500 0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 

0.5622 0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 

0.3740 0.3186 0.0811 0.0000 0.0294 

0.8750 0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 

0.8516 0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 

0.5000 0.2941 0.8000 0.0000 0.2500 

0.9516 0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 

0.8046 0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 

0.7538 0.6667 0.5692 0.3867 0.4314 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 

0.9325 0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 

0.9048 0.8433 0.8151 0.6709 0.7429 

Appendix E1 - Page Number:

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ATTACHMENT C ATTACHMENT C 

C-50 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 

0.9964 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

 

Prince William County, VA—2009 Diesel Sales Fractions 

0.0061 0.0061 0.0061 0.0061 0.0061 0.0030 0.0027 0.0035 0.0026 0.0021 

0.0026 0.0023 0.0013 0.0013 0.0014 0.0003 0.0014 0.0018 0.0038 0.0014 

0.0011 0.0004 0.0219 0.0110 0.0943 

0.0113 0.0113 0.0113 0.0113 0.0113 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0260 

0.0005 0.0005 0.0005 0.0005 0.0005 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0002 

0.0000 0.0000 0.0016 0.0077 0.0060 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0006 0.0000 0.0000 0.0000 0.0000 

0.0009 0.0025 0.0024 0.0017 0.0063 0.0017 0.0017 0.0022 0.0085 0.0000 

0.0053 0.0130 0.0146 0.0123 0.0167 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0013 0.0000 0.0000 0.0000 0.0005 

0.0011 0.0020 0.0033 0.0136 0.0185 0.0244 0.0077 0.0132 0.0102 0.0615 

0.0166 0.0115 0.0086 0.0962 0.0938 

0.2740 0.2740 0.2740 0.2740 0.2740 0.2754 0.2338 0.2220 0.2318 0.2109 

0.2679 0.1337 0.2856 0.2529 0.2250 0.2596 0.2962 0.2274 0.2827 0.2096 

0.1884 0.1637 0.1926 0.2264 0.2242 

0.6954 0.6954 0.6954 0.6954 0.6954 0.4717 0.5553 0.5573 0.5687 0.5525 

0.5621 0.4575 0.5762 0.6158 0.4281 0.4417 0.4278 0.4882 0.4231 0.3333 

0.4867 0.4851 0.5549 0.4272 0.2051 

0.8500 0.8500 0.8500 0.8500 0.8500 0.7937 0.7264 0.6023 0.5402 0.5722 

0.5622 0.4634 0.5071 0.4831 0.5985 0.4318 0.5496 0.4561 0.2626 0.3548 

0.3740 0.3186 0.0811 0.0000 0.0294 

0.8750 0.8750 0.8750 0.8750 0.8750 0.8917 0.9245 0.9379 0.9054 0.8984 

0.8516 0.8667 0.4750 0.4872 0.5745 0.7667 1.0000 0.7500 0.5000 0.7143 

0.5000 0.2941 0.8000 0.0000 0.2500 

0.9516 0.9516 0.9516 0.9516 0.9516 0.8228 0.6755 0.7821 0.9176 0.8782 

0.8046 0.8524 0.8901 0.9096 0.9200 0.9300 0.9314 0.7746 0.6667 0.6386 

0.7538 0.6667 0.5692 0.3867 0.4314 

Appendix E1 - Page Number:

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ATTACHMENT C ATTACHMENT C 

C-51 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9865 0.9907 1.0000 0.9651 

0.9325 0.9930 0.9160 0.9540 0.9766 1.0000 0.9412 0.9545 0.9863 0.9360 

0.9048 0.8433 0.8151 0.6709 0.7429 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9914 

0.9964 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

School Bus—Regional Diesel Sales Fractions 

(Valid for all years) 

* All Other Vehicle Categories

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

0.0000 0.0000 0.0000 0.0000 0.0000 

* HDBS

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 

1.0000 1.0000 1.0000 1.0000 1.0000 

Appendix E1 - Page Number:

91
ATTACHMENT D 

Appendix E1 - Page Number:

92
ATTACHMENT D 

I:\SIP documentation\attach_D_V2_postp_ozone.doc D-1 

MEMORANDUM 

TO: Files 

FROM: Ronald Milone 

DATE: September 19, 2006 

SUBJECT: Mobile Emissions Post-Processor Description and Results 

1.0 Introduction 

This memorandum describes the mobile emissions post-processor used to support the Air Quality 

Conformity Determination of the 2006 CLRP and the FY2007-2012 TIP. The post-processor is 

a series of TP+ scripts that are used to calculate regional mobile source emissions. The 

emissions are developed on the basis of travel demand information produced by the regional 

travel demand model and emission rates produced from the EPA mandated Mobile model. The 

TPB’s currently adopted travel model is known as the Version 2.1 D Draft #50 (September 

2006). The current Mobile program is version 6.2.03 (September 2003). The post-processor 

computes mobile emissions in terms of volatile organic compounds (VOC/HC), carbon 

monoxide (CO), oxides of nitrogen (NOx), and fine particulates (PM2.5) which include NOx 

precursors. The post-processor computes average daily VOC, CO, and NOx emissions for both 

wintertime and summer seasons. It is also used to compute annual NOx precursor and PM2.5 

emissions. 

The post-processor computes mobile emissions attributable to modeled trips and VMT. It is also 

used to compute emissions of local, or off-network, traffic. These account for most, but not all, 

of mobile emissions that occur on a given day. Other off-network sources include vehiclerelated (diurnal and resting loss) emissions as well as emissions relating to buses, and park-andride travel, which are computed using off-line procedures. These types of emission calculations 

are not addressed in this memorandum. 

2.0 Post-Processor Overview

Mobile emissions are computed essentially by multiplying a unit of travel, as produced by the 

travel demand model, by an associated emission rate, as developed by the Mobile 6 model. The 

TPB emissions forecasts are based on computations for each stage of the trip cycle. In other 

words, per trip rates are developed to compute starting and soaking emissions, while per mile

rates are developed to compute hot-stabilized (or running) emissions. Table 1 shows greater 

detail regarding the generalized emission calculation by trip cycle and pollutant. It is important 

to note that the emission rates are developed for specific seasons because weather conditions are 

important factors used in the emissions model. Since the regional travel demand model develops 

forecasts in terms of average annual weekday (AAWDT) conditions, seasonal factors are applied 

to the travel model data to be consistent with the seasonal emissions rate. Table 2 shows the 

conversion factors, which were developed based on local permanent count data. Seasonal 

Appendix E1 - Page Number:

93
 D-2 

adjustments are currently applied only to network link VMT. At present, there are no such 

conversion factors applied to modeled vehicle trips which are used to develop starting or soak 

emissions. 

Table 1: Summary of Mobile Emissions Calculation by Emission Type and Pollutant 

Emission Type Pollutant Emission Rate 

Description 

Travel Unit 

Description 

How Emissions are Computed 

VOC 

CO 

NOx 

 gm/mile, by 

jurisdiction, facility 

type and speed 

Vehicle miles Emission rate * travel unit, 

computed at network link level, by 

hour of day 

Running/ 

On-Network 

PM2.5 

 

gm/mile, by 

jurisdiction 

 

vehicle miles 

 

Emission rate * travel unit, 

computed at network link level 

 

Start-Up VOC 

CO 

NOx 

gm/trip, by jurisdiction 

and engine condition 

(hot/cold) 

Vehicle starts Emission rate * travel unit, 

computed at TAZ level, by hour of 

day 

Soak VOC gm/trip, by jurisdiction Vehicle stops Emission rate * travel unit, 

computed at TAZ level 

VOC 

CO 

NOx 

gm/mile, by 

jurisdiction in 

urbanized areas; 

by jurisdiction and 

speed in rural areas 

vehicle 

miles 

Emission rate * travel unit, 

computed at jurisdiction level, 

stratified by urban and rural areas; 

rural areas are further stratified by 

speed ranges 

Running / Local 

(Off-Network) 

PM2.5 gm/mile, by 

jurisdiction 

vehicle 

miles 

Emission rate * travel unit, 

Computed at jurisdiction level 

Table 2: Conversion Factors for Converting AAWDT to Seasonal Travel 

Analysis Period Pollutants 

Analyzed 

Duration of Seasonal 

Period 

 Conversion 

Factor Applied 

to AAWDT 

Result of Conversion 

Summer / Ozone 

Season 

VOC 

NOx 

May to September 1.05 Seasonal AAWDT 

Wintertime Season CO December to February 0.97 Seasonal AAWDT 

January to April 0.92 Seasonal ADT 

May to September 0.99 Seasonal ADT 

Annual Total 

(sum of 3 seasons) 

PM2.5 

NOx precursor 

October to December 0.93 Seasonal ADT 

Table 2 also indicates the key pollutants of interest in the Washington, D.C. region vary by 

season. VOC and NOx emissions are most severe during the summer season while CO 

emissions are highest during the winter. PM 2.5 and NOx precursor emissions are developed as 

annualized figures based on the sum of three separate seasonal computations. 

3.0 Mobile 6 Rates 

Table 1 indicates that the emission rates are developed on a jurisdictional basis. This is done 

because many parameters used the Mobile 6 model vary by location, for example, inspection and 

maintenance programs, vehicle fleet mix, etc. Emission rates are currently prepared for 16 

individual jurisdictions which are listed in Table 3. These include jurisdictions both in and 

around the non-attainment area. The table indicates that the 16 sets of modeled emission rates 

Appendix E1 - Page Number:

94
 D-3 

are ultimately applied to reflect 27 jurisdictions (or external stations) using ‘nearest-neighbor’ 

assumptions. 

Table 3: Jurisdictional Emission Areas 

Emission Area 

System 

Number 

Jurisdiction / External Area MSA 

Member 

Yes/No 

Mobile Rates Modeled/Borrowed 

1 Washington, DC Yes Modeled 

2 Montgomery County Yes Modeled 

3 Prince George’s County Yes Modeled 

4 Howard County No Borrowed (Prince George’s Co.) 

5 Anne Arundel County No Borrowed (Prince George’s Co.) 

6 Carroll County No Borrowed (Prince George’s Co.) 

7 Baltimore Area Externals No Borrowed (Prince George’s Co.) 

8 Calvert County Yes Modeled 

9 Charles County Yes Modeled 

10 Frederick County Yes Modeled 

11 Frederick Co. Externals No Borrowed (Frederick Co.) 

12 Arlington Yes Modeled 

13 Fairfax County Yes Modeled 

14 Loudoun County Yes Modeled 

15 Prince William County Yes Modeled 

16 Stafford County Yes Modeled 

17 City of Alexandria Yes Modeled 

18 St. Mary’s County No Modeled 

19 Washington Co. Externals No Modeled 

20 Clarke County No Modeled 

21 Fauquier County No Borrowed (Clarke Co.) 

22 Jefferson Co, WVA No Borrowed (Clarke Co.) 

23 Western External Area No Borrowed (Clarke Co.) 

24 Spotsylvania County No Modeled 

25 King George County No Borrowed (Spotsylvania Co.) 

26 City of Fredericksburg No Borrowed (Spotsylvania Co.) 

27 Southern External Area No Borrowed (Spotsylvania Co.) 

Table 1 also indicates that, beyond jurisdictional considerations, the running emission rates are 

further specified by facility and speed, and starting emissions are further segmented by ‘hot’ and 

‘cold’ engine conditions. In all, 179 Mobile model executions are prepared for each jurisdiction, 

for given season. These executions are currently run in batch. The sequence of scenarios 

generated by the batch of Mobile 6 executions is shown on Table 4. Each scenario represents a 

unique condition pertaining to the vehicle operating mode, facility type, and speed. Because 

annualized emissions are desired for the PM2.5 pollutant, the generation of Mobile rates 

procedures is expanded to reflect multiple seasons. Annualized NOx and PM2.5 emissions are 

currently developed on the basis of three seasonal periods. The associated Mobile 6 scenarios 

that are batched together for three seasons are listed shown on Table 5. Three utility programs 

have been developed to read the Mobile 6 output rate listings and create emission rate files that 

are readable by the TP+ scripts. These programs are named: 

1) M6RATES.EXE (single season / VOC, CO, NOx rates) 

2) M6RATES_3S_HCN.EXE (three-season VOC, CO, NOx rates) 

Appendix E1 - Page Number:

95
 D-4 

3) M6RATES_3S_PM.EXE (three-season PM 2.5 rates) 

Table 4: Sequence of Mobile Scenarios Generated for a Single Season 

MOBILE6 ‘Scenarios’ 

Operating 

Mode Facility Type Speed Specifications 

 1- 65 Stabilized Arterial 1 to 65 mph in 1 mph increments 

 66-130 Stabilized Freeway, Non-Ramp 1 to 65 mph in 1 mph increments 

131 Stabilized Freeway Ramp Single speed / 35.0 mph 

132 Cold Local Single speed / 12.9 mph 

133 Hot Local Single speed / 12.9 mph 

134 Stabilized Local Single speed / 12.9 mph 

135-179 Stabilized Arterial(w/ Rural VMT Mix) 1 to 45 mph in 1 mph increments 

Table 5: Sequence of Mobile Scenarios Generated for Three Seasons 

MOBILE6 

‘Scenarios’ 

Season 

Op. Mode Facility Type Speed Specifications 

 1- 65 Stabilized Arterial 1 to 65 mph in 1 mph increments 

 66-130 Stabilized Freeway, Non-Ramp 1 to 65 mph in 1 mph increments 

131 Stabilized Freeway Ramp Single speed / 35.0 mph 

132 Cold Local Single speed / 12.9 mph 

133 Hot Local Single speed / 12.9 mph 

134 Stabilized Local Single speed / 12.9 mph 

135-179 

Jan-Apr 

Stabilized Arterial(w/ Rural VMT Mix) 1 to 45 mph in 1 mph increments 

 180- 244 Stabilized Arterial 1 to 65 mph in 1 mph increments 

 245-309 Stabilized Freeway, Non-Ramp 1 to 65 mph in 1 mph increments 

310 Stabilized Freeway Ramp Single speed / 35.0 mph 

311 Cold Local Single speed / 12.9 mph 

312 Hot Local Single speed / 12.9 mph 

313 Stabilized Local Single speed / 12.9 mph 

314-358 

May-Sep 

Stabilized Arterial(w/ Rural VMT Mix) 1 to 45 mph in 1 mph increments 

359-423 Stabilized Arterial 1 to 65 mph in 1 mph increments 

 424-488 Stabilized Freeway, Non-Ramp 1 to 65 mph in 1 mph increments 

489 Stabilized Freeway Ramp Single speed / 35.0 mph 

490 Cold Local Single speed / 12.9 mph 

491 Hot Local Single speed / 12.9 mph 

492 Stabilized Local Single speed / 12.9 mph 

493-537 

Oct-Dec 

Stabilized Arterial(w/ Rural VMT Mix) 1 to 45 mph in 1 mph increments 

The final emission rate files used in single-season post-processor runs and three-season postprocessor runs are shown on Tables 5 and 6 respectively. The tables indicate the filename 

convention used for a given post-processor run. The first characters of the file name are user 

specified, but the end-characters of the name are standardized. Table 5 indicates that 96 rate files 

are used in a single-season run, while 320 rate files are used in three season post-processor runs. 

Appendix E1 - Page Number:

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ATTACHMENT D 

I:\SIP documentation\attach_D_V2_postp_ozone.doc D-5 Table 6: Listing of Emission Rate Filenames Prepared for the Post-Processor / Single-Season Post-Processor

Running Arterial Rates

Running Freeway Rates

Running Freeway Ramp Rates

Starting (Hot/Cold) Rates Running Local Rat

Jurisdiction

VOC, CO, Nx Rates by speed 

VOC, CO, Nx Rates by speed 

VOC, CO, Nx Rates @ 35 mph 

Hot VOC, CO, Nox / Cold VOC, CO, Nox Rates

VOC, CO, Nox Rat12.9 mph

Alexandria <prefix>AL.r_a <prefix>AL.r_f <prefix>AL.ram <prefix>AL.stt <prefix>AL.lcl Arlington <prefix>AR.r_a <prefix>AR.r_f <prefix>AR.ram <prefix>AR.stt <prefix>AR.lcl Calvert <prefix>CA.r_a <prefix>CA.r_f <prefix>CA.ram <prefix>CA.stt <prefix>CA.lcl Charles <prefix>CH.r_a <prefix>CH.r_f <prefix>CH.ram <prefix>CH.stt <prefix>CH.lcl Calvert <prefix>CL.r_a <prefix>CL.r_f <prefix>CL.ram <prefix>CL.stt <prefix>CL.lcl DC <prefix>DC.r_a <prefix>DC.r_f <prefix>DC.ram <prefix>DC.stt <prefix>DC.lcl Frederick <prefix>FR.r_a <prefix>FR.r_f <prefix>FR.ram <prefix>FR.stt <prefix>FR.lcl Fairfax <prefix>FX.r_a <prefix>FX.r_f <prefix>FX.ram <prefix>FX.stt <prefix>FX.lcl Loudoun <prefix>LD.r_a <prefix>LD.r_f <prefix>LD.ram <prefix>LD.stt <prefix>LD.lcl Montgomery <prefix>MC.r_a <prefix>MC.r_f <prefix>MC.ram <prefix>MC.stt <prefix>MC.lcl Pr. George's <prefix>PG.r_a <prefix>PG.r_f <prefix>PG.ram <prefix>PG.stt <prefix>PG.lcl Pr. William <prefix>PW.r_a <prefix>PW.r_f <prefix>PW.ram <prefix>PW.stt <prefix>PW.lcl St. Mary's <prefix>SM.r_a <prefix>SM.r_f <prefix>SM.ram <prefix>SM.stt <prefix>SM.lcl Sprotsylvania <prefix>SP.r_a <prefix>SP.r_f <prefix>SP.ram <prefix>SP.stt <prefix>SP.lcl Stafford <prefix>ST.r_a <prefix>ST.r_f <prefix>ST.ram <prefix>ST.stt <prefix>ST.lcl Washington Co <prefix>WE.r_a <prefix>WE.r_f <prefix>WE.ram <prefix>WE.stt <prefix>WE.lcl 

Appendix E1 - Page Number:97
D-6 

Table 7: Listing of Emission Rate Filenames Prepared for the Post-Processor / Three – Season Post-Processor 

Running Arterial Rates

Running Freeway Rates

Running Freeway Ramp Rates

Starting (Hot/Cold) Rates Running Local Rates 

Running Local -Rural Arterial Rates

Pollutant Jurisdiction Seasonal Rates by speed 

Seasonal Rates by speed 

Seasonal Rates @ 35 mph speed 

Seasonal Hot/Cold Rates

Seasonal Rates @ 12.9 mph speed Seasonal Rates by speed Pollutant 

Alexandria <prefix>COAL.arC <prefix>COAL.frC <prefix>COAL.rmC <prefix>COAL.stC <prefix>COAL.lcC <prefix>COAL.rrC PM 2.5 

CO Arlington <prefix>COAR.arC <prefix>COAR.frC <prefix>COAR.rmC <prefix>COAR.stC <prefix>COAR.lcC <prefix>COAR.rrC 

Calvert <prefix>COCA.arC <prefix>COCA.frC <prefix>COCA.rmC <prefix>COCA.stC <prefix>COCA.lcC <prefix>COCA.rrC Seasonal Network Charles <prefix>COCH.arC <prefix>COCH.frC <prefix>COCH.rmC <prefix>COCH.stC <prefix>COCH.lcC <prefix>COCH.rrC Seasonal Local Calvert <prefix>COCL.arC <prefix>COCL.frC <prefix>COCL.rmC <prefix>COCL.stC <prefix>COCL.lcC <prefix>COCL.rrC DC <prefix>CODC.arC <prefix>CODC.frC <prefix>CODC.rmC <prefix>CODC.stC <prefix>CODC.lcC <prefix>CODC.rrC Frederick <prefix>COFR.arC <prefix>COFR.frC <prefix>COFR.rmC <prefix>COFR.stC <prefix>COFR.lcC <prefix>COFR.rrC Fairfax <prefix>COFX.arC <prefix>COFX.frC <prefix>COFX.rmC <prefix>COFX.stC <prefix>COFX.lcC <prefix>COFX.rrC Loudoun <prefix>COLD.arC <prefix>COLD.frC <prefix>COLD.rmC <prefix>COLD.stC <prefix>COLD.lcC <prefix>COLD.rrC Montgomery <prefix>COMC.arC <prefix>COMC.frC <prefix>COMC.rmC <prefix>COMC.stC <prefix>COMC.lcC <prefix>COMC.rrC Pr. George's <prefix>COPG.arC <prefix>COPG.frC <prefix>COPG.rmC <prefix>COPG.stC <prefix>COPG.lcC <prefix>COPG.rrC Pr. William <prefix>COPW.arC <prefix>COPW.frC <prefix>COPW.rmC <prefix>COPW.stC <prefix>COPW.lcC <prefix>COPW.rrC St. Mary's <prefix>COSM.arC <prefix>COSM.frC <prefix>COSM.rmC <prefix>COSM.stC <prefix>COSM.lcC <prefix>COSM.rrC Sprotsylvania <prefix>COSP.arC <prefix>COSP.frC <prefix>COSP.rmC <prefix>COSP.stC <prefix>COSP.lcC <prefix>COSP.rrC Stafford <prefix>COST.arC <prefix>COST.frC <prefix>COST.rmC <prefix>COST.stC <prefix>COST.lcC <prefix>COST.rrC Washington Co <prefix>COWE.arC <prefix>COWE.frC <prefix>COWE.rmC <prefix>COWE.stC <prefix>COWE.lcC <prefix>COWE.rrC 

VOC Alexandria <prefix>HCAL.arH <prefix>HCAL.frH <prefix>HCAL.rmH <prefix>HCAL.stH <prefix>HCAL.lcH <prefix>HCAL.rrH

Arlington <prefix>HCAR.arH <prefix>HCAR.frH <prefix>HCAR.rmH <prefix>HCAR.stH <prefix>HCAR.lcH <prefix>HCAR.rrHCalvert <prefix>HCCA.arH <prefix>HCCA.frH <prefix>HCCA.rmH <prefix>HCCA.stH <prefix>HCCA.lcH <prefix>HCCA.rrHCharles <prefix>HCCH.arH <prefix>HCCH.frH <prefix>HCCH.rmH <prefix>HCCH.stH <prefix>HCCH.lcH <prefix>HCCH.rrHCalvert <prefix>HCCL.arH <prefix>HCCL.frH <prefix>HCCL.rmH <prefix>HCCL.stH <prefix>HCCL.lcH <prefix>HCCL.rrHDC <prefix>HCDC.arH <prefix>HCDC.frH <prefix>HCDC.rmH <prefix>HCDC.stH <prefix>HCDC.lcH <prefix>HCDC.rrHFrederick <prefix>HCFR.arH <prefix>HCFR.frH <prefix>HCFR.rmH <prefix>HCFR.stH <prefix>HCFR.lcH <prefix>HCFR.rrHFairfax <prefix>HCFX.arH <prefix>HCFX.frH <prefix>HCFX.rmH <prefix>HCFX.stH <prefix>HCFX.lcH <prefix>HCFX.rrHLoudoun <prefix>HCLD.arH <prefix>HCLD.frH <prefix>HCLD.rmH <prefix>HCLD.stH <prefix>HCLD.lcH <prefix>HCLD.rrHMontgomery <prefix>HCMC.arH <prefix>HCMC.frH <prefix>HCMC.rmH <prefix>HCMC.stH <prefix>HCMC.lcH <prefix>HCMC.rrHPr. George's <prefix>HCPG.arH <prefix>HCPG.frH <prefix>HCPG.rmH <prefix>HCPG.stH <prefix>HCPG.lcH <prefix>HCPG.rrHPr. William <prefix>HCPW.arH <prefix>HCPW.frH <prefix>HCPW.rmH <prefix>HCPW.stH <prefix>HCPW.lcH <prefix>HCPW.rrHSt. Mary's <prefix>HCSM.arH <prefix>HCSM.frH <prefix>HCSM.rmH <prefix>HCSM.stH <prefix>HCSM.lcH <prefix>HCSM.rrHSprotsylvania <prefix>HCSP.arH <prefix>HCSP.frH <prefix>HCSP.rmH <prefix>HCSP.stH <prefix>HCSP.lcH <prefix>HCSP.rrHStafford <prefix>HCST.arH <prefix>HCST.frH <prefix>HCST.rmH <prefix>HCST.stH <prefix>HCST.lcH <prefix>HCST.rrHWashington Co <prefix>HCWE.arH <prefix>HCWE.frH <prefix>HCWE.rmH <prefix>HCWE.stH <prefix>HCWE.lcH <prefix>HCWE.rrH

Pollutant 

NOx Alexandria <prefix>NXAL.arN <prefix>NXAL.frN <prefix>NXAL.rmN <prefix>NXAL.stN <prefix>NXAL.lcN <prefix>NXAL.rrN 

Arlington <prefix>NXAR.arN <prefix>NXAR.frN <prefix>NXAR.rmN <prefix>NXAR.stN <prefix>NXAR.lcN <prefix>NXAR.rrN Soak, Diurnal, Calvert <prefix>NXCA.arN <prefix>NXCA.frN <prefix>NXCA.rmN <prefix>NXCA.stN <prefix>NXCA.lcN <prefix>NXCA.rrN Resting Loss Charles <prefix>NXCH.arN <prefix>NXCH.frN <prefix>NXCH.rmN <prefix>NXCH.stN <prefix>NXCH.lcN <prefix>NXCH.rrN Rates Calvert <prefix>NXCL.arN <prefix>NXCL.frN <prefix>NXCL.rmN <prefix>NXCL.stN <prefix>NXCL.lcN <prefix>NXCL.rrN DC <prefix>NXDC.arN <prefix>NXDC.frN <prefix>NXDC.rmN <prefix>NXDC.stN <prefix>NXDC.lcN <prefix>NXDC.rrN Seasonal Soak, Frederick <prefix>NXFR.arN <prefix>NXFR.frN <prefix>NXFR.rmN <prefix>NXFR.stN <prefix>NXFR.lcN <prefix>NXFR.rrN Seasonal DiurnalFairfax <prefix>NXFX.arN <prefix>NXFX.frN <prefix>NXFX.rmN <prefix>NXFX.stN <prefix>NXFX.lcN <prefix>NXFX.rrN Seasonal Rest LoLoudoun <prefix>NXLD.arN <prefix>NXLD.frN <prefix>NXLD.rmN <prefix>NXLD.stN <prefix>NXLD.lcN <prefix>NXLD.rrN Montgomery <prefix>NXMC.arN <prefix>NXMC.frN <prefix>NXMC.rmN <prefix>NXMC.stN <prefix>NXMC.lcN <prefix>NXMC.rrN Pr. George's <prefix>NXPG.arN <prefix>NXPG.frN <prefix>NXPG.rmN <prefix>NXPG.stN <prefix>NXPG.lcN <prefix>NXPG.rrN Pr. William <prefix>NXPW.arN <prefix>NXPW.frN <prefix>NXPW.rmN <prefix>NXPW.stN <prefix>NXPW.lcN <prefix>NXPW.rrN St. Mary's <prefix>NXSM.arN <prefix>NXSM.frN <prefix>NXSM.rmN <prefix>NXSM.stN <prefix>NXSM.lcN <prefix>NXSM.rrN Sprotsylvania <prefix>NXSP.arN <prefix>NXSP.frN <prefix>NXSP.rmN <prefix>NXSP.stN <prefix>NXSP.lcN <prefix>NXSP.rrN Stafford <prefix>NXST.arN <prefix>NXST.frN <prefix>NXST.rmN <prefix>NXST.stN <prefix>NXST.lcN <prefix>NXST.rrN Washington Co <prefix>NXWE.arN <prefix>NXWE.frN <prefix>NXWE.rmN <prefix>NXWE.stN <prefix>NXWE.lcN <prefix>NXWE.rrN 

Appendix E1 - Page Number:98
ATTACHMENT D 

I:\SIP documentation\attach_D_V2_postp_ozone.doc D-7 

4.0 Post–Processor Computations

The post-processor computes three classes of mobile emissions: Trip-end emissions, comprised 

of starting and soaking types, running emissions, and local emissions. The computation 

procedures are described below, in turn. 

4.1 Trip-End Emissions 

Starting emissions are developed by applying per-trip emission rates to modeled vehicle trips at 

the zone level, on an hour-by-hour basis. Starting pollutant rates are associated with VOC, CO, 

and NOx emissions, and are expressed in terms of cold and hot transient types. Cold starts relate 

to those auto trips with fully cooled engines (i.e., engines that have been turned off for at least 

one hour prior to the trip starting time). Alternatively, hot transient starts are those auto trips 

with warm engines (i.e., engines that have been turned off less than one hour prior to the trip 

start time). An hourly allocation of trip origins is necessary for the starting emission calculation 

since the proportion of cold and hot starts is dependent upon the time of day. The assumed 

hourly distribution of AM, PM, and Off-peak vehicle trips is shown on Table 8. The distribution 

shown was derived from the 1994 Household Travel Survey (HTS). The assumed hourly 

distribution for cold and hot transient starts is shown on Table 9. This table was also derived 

from the 1994 HTS. 

Soaking emissions are associated with the evaporative VOC/HC emissions that result when the 

engine is turned off. The soak emissions consist of a single emission rate that is applied to trip 

destinations. There is no temporal component to the soaking emission computation. 

It was stated earlier that emission rates are developed on a county-by-county basis. An averaged 

emission rate is used in the post-processor, as opposed to a single county-specific rate, because 

the vehicle starts in any given jurisdiction are realistically made by residents of that jurisdiction 

as well as by residents of many other jurisdictions. For example, the emission rate used within 

the District of Columbia is the average of all emission rates weighted by the proportion of daily 

vehicle trips from each jurisdiction to the District. The general equation for computing starting 

emissions for a specific TAZ and hour of the day is as follows: 

 27 

StartEmih = Startsh * Σ ((CSRj*CPCTh + HSRj* HPCTh) * Tpropij) j=1 

 Where: 

StartEmih = Zonal starting-up emissions (in grams) at hour h in jurisdiction i 

Startsh = Zonal vehicle starts at hour h 

CSRj = Cold Start rate (gm/trip) for jurisdiction j 

CPCTh = Cold start proportion at hour h 

HSRj = Hot Start rate (gm/trip) for jurisdiction j 

HPCTh = Hot start proportion at hour h 

Tpropij = Proportion of daily trips between jurisdiction i/j 

Appendix E1 - Page Number:

99
 D-8 

Table 8 

Distribution of AM, PM, and Off-Peak Period Auto Driver Trips 

Among 

Hourly Periods 

Hour % % 

No. AM PM Off-Peak 

1 12mid - 12:59AM 0.30% 

2 1:00AM - 1:59AM 0.40% 

3 2:00AM - 2:59AM 0.30% 

4 3:00AM - 3:59AM 0.30% 

5 4:00AM - 4:59AM 0.50% 

6 5:00AM - 5:59AM 2.20% 

7 6:00AM - 6:59AM 20.10% 

8 7:00AM - 7:59AM 39.80% 

9 8:00AM - 8:59AM 40.10% 

10 9:00AM - 9:59AM 9.70% 

11 10:00AM - 10:59AM 8.20% 

12 11:00AM - 11:59AM 9.20% 

13 12noon - 12:59PM 10.10% 

14 1:00PM - 1:59PM 8.90% 

15 2:00PM - 2:59PM 9.00% 

16 3:00PM - 3:59PM 11.60% 

17 4:00PM - 4:59PM 31.40% 

18 5:00PM - 5:59PM 37.30% 

19 6:00PM - 6:59PM 31.30% 

20 7:00PM - 7:59PM 10.80% 

21 8:00PM - 8:59PM 7.70% 

22 9:00PM - 9:59PM 5.80% 

23 10:00PM - 10:59PM 3.40% 

24 11:00PM - 11:59PM 1.60% 

Total 100.00% 100.00% 100.00% 

Appendix E1 - Page Number:

100
 D-9 

Table 9

Distribution of Cold / Hot Transient Vehicle Starts by Hour 

 

Hour % % 

No. Cold Hot Total 

1 12mid - 12:59AM 84.70% 15.30% 100.00% 

2 1:00AM - 1:59AM 83.80% 16.20% 100.00% 

3 2:00AM - 2:59AM 92.90% 7.10% 100.00% 

4 3:00AM - 3:59AM 91.20% 8.80% 100.00% 

5 4:00AM - 4:59AM 89.40% 10.60% 100.00% 

6 5:00AM - 5:59AM 93.00% 7.00% 100.00% 

7 6:00AM - 6:59AM 88.40% 11.60% 100.00% 

8 7:00AM - 7:59AM 82.90% 17.10% 100.00% 

9 8:00AM - 8:59AM 73.00% 27.00% 100.00% 

10 9:00AM - 9:59AM 61.50% 38.50% 100.00% 

11 10:00AM - 10:59AM 55.40% 44.60% 100.00% 

12 11:00AM - 11:59AM 55.10% 44.90% 100.00% 

13 12noon - 12:59PM 50.50% 49.50% 100.00% 

14 1:00PM - 1:59PM 51.20% 48.80% 100.00% 

15 2:00PM - 2:59PM 56.20% 43.80% 100.00% 

16 3:00PM - 3:59PM 58.30% 41.70% 100.00% 

17 4:00PM - 4:59PM 60.50% 39.50% 100.00% 

18 5:00PM - 5:59PM 59.90% 40.10% 100.00% 

19 6:00PM - 6:59PM 55.20% 44.80% 100.00% 

20 7:00PM - 7:59PM 57.00% 43.00% 100.00% 

21 8:00PM - 8:59PM 61.60% 38.40% 100.00% 

22 9:00PM - 9:59PM 66.40% 33.60% 100.00% 

23 10:00PM - 10:59PM 71.10% 28.90% 100.00% 

24 11:00PM - 11:59PM 73.00% 27.00% 100.00% 

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

1 3 5 7 9 11 13 15 17 19 21 23

Hour

Percent

Cold

Hot

Appendix E1 - Page Number:

101
 D-10 

Similarly, the equation for computing hot soak emissions is as follows: 

 27 

SoakEmih = Stopsh * Σ (HSRj * Tpropij) j=1 

Where: 

SoakEmih = Zonal hot soak emissions (in grams) at hour h in jurisdiction i 

Stopsh = Vehicle stops at hour h 

HSRj = Hot Soak rate (gm/trip) for jurisdiction j 

Tpropij = Proportion of daily trips between jurisdiction i and jurisdiction j 

The regional total of starting/soaking emissions is, therefore, based on the result of the above 

equations accumulated over all TAZ’s, over all hours of the day. Regional emissions in grams 

are converted to tons using a conversion factor of 907,184.74 gm/ton. 

4.2 Running (Hot Stabilized) Emissions

Running emissions are associated with VOC/HC, CO, NOx, and PM 2.5 pollutants emitted on 

the regional highway network. They are computed by applying per-mile emission rates to VMT 

at the network link level, and are computed on an hour-by-hour basis. The calculation is applied 

on an hourly basis because the running emission rates are provided as a function of highway 

speed1

, which varies with congestion throughout the day. As with the trip-end emission 

calculation, the running emission rate for a given link is a weighted average of all jurisdictional 

rates based on the proportion of daily vehicle trips from each county to the specific county in 

which the network link is located. 

The post-processor now incorporates global link volume adjustment factors used to adjust 

AAWDT volume to the specific season that is appropriate. The current seasonal factors were 

shown on Table 2, above. Before link volumes are disaggregated among hourly periods, the total 

daily volume on the link is adjusted with the seasonal factor. 

The allocation of link volumes among hourly periods is done in a two-step manner. First, an 

initial hourly distribution based on observed data for the Washington region is applied to the 

daily link volume, based on the facility class and peaking classification of the link. Facility 

classifications are defined as freeway, arterial, or local. COG has established three peaking 

types, AM-oriented, PM-oriented, and Even, based on the following peaking percentage2

: 

Peaking Percentage = ((AM Volume* PM scale factor) – PM Volume) / Daily Link Volume 

Where:

Peaking Percentage > 7.5% indicates AM oriented class 

Peaking Percentage < - 7.5% indicates PM oriented class 

Peaking Percentage - 7.5% to 7.5% indicates Even oriented class 

 

1

 The current PM2.5 emission rate, however, does not vary by speed. Nonetheless, the PM2.5 computation is still 

made on an hourly basis. 

2

 See August 27, 2002 Memorandum from Michael Freeman to File, Subject: Development and Recommendations 

of Hourly Distributions of Daily Traffic Volumes. 

Appendix E1 - Page Number:

102
 D-11 

The PM scale factor shown is applied to all AM period volumes so that the sum of regional AM 

link volumes will equal the sum of regional PM volumes. The scaled volume is used only for the 

purpose of computing the peaking index, and is necessary to ensure that a reasonable regional 

balance of AM and PM oriented links are attained. Default hourly distributions associated with 

specific facility and peaking classifications are shown on Table 10. The distribution selected for 

a given link is applied to the daily seasonal link volume to arrive at initial hourly volume 

estimates. Next, the initial hourly estimates are scaled on a gross time period basis so that the 

hourly link volumes in the AM peak, PM peak, and off-peak periods are consistent with the 

original (seasonally adjusted) link volumes produced by the traffic assignment process. The 

hourly link speed is developed from the volume–to-capacity ratio developed at this point based 

on the speed flow relationship shown on Table 11. The functions shown on Table 11 are based 

on observed speed and density data collected in the Washington region. 

Table 10 

Hourly Distribution of Daily Traffic by Orientation and Facility Type 

Hour AM PM EVEN 

No. Freeway Arterial Collector Freeway Arterial Collector Freeway Arterial Collector 

1 12mid - 12:59AM 0.77 0.49 0.34 1.11 0.76 0.62 1.07 0.67 0.52 

2 1:00AM - 1:59AM 0.55 0.30 0.20 0.64 0.41 0.32 0.73 0.40 0.31 

3 2:00AM - 2:59AM 0.52 0.25 0.18 0.48 0.28 0.24 0.61 0.30 0.24 

4 3:00AM - 3:59AM 0.72 0.37 0.29 0.42 0.24 0.20 0.68 0.33 0.30 

5 4:00AM - 4:59AM 1.88 1.09 0.96 0.58 0.38 0.32 1.24 0.72 0.70 

6 5:00AM - 5:59AM 6.20 4.05 3.80 1.38 1.08 0.96 3.60 2.27 2.37 

7 6:00AM - 6:59AM 8.66 8.75 9.19 3.24 2.70 2.58 4.99 4.58 4.83 

8 7:00AM - 7:59AM 11.13 12.38 13.40 4.63 4.62 4.67 6.96 7.65 8.06 

9 8:00AM - 8:59AM 8.04 9.82 10.92 4.71 5.15 5.07 5.44 6.90 7.27 

10 9:00AM - 9:59AM 6.94 6.39 6.10 3.84 4.38 4.10 5.93 6.11 5.80 

11 10:00AM - 10:59AM 5.14 4.71 4.50 3.90 4.19 3.94 5.18 5.15 4.80 

12 11:00AM - 11:59AM 4.68 4.53 4.51 4.21 4.67 4.54 5.15 5.40 5.14 

13 12noon - 12:59PM 4.65 4.72 4.81 4.61 5.25 5.25 5.34 5.80 5.50 

14 1:00PM - 1:59PM 4.58 4.64 4.64 4.83 5.21 5.01 5.45 5.68 5.34 

15 2:00PM - 2:59PM 4.66 4.80 4.85 5.95 5.87 5.76 6.10 5.97 5.89 

16 3:00PM - 3:59PM 4.70 5.09 5.17 7.32 7.14 7.03 6.80 6.62 6.68 

17 4:00PM - 4:59PM 4.56 5.26 5.24 9.95 9.58 10.06 5.94 6.26 6.61 

18 5:00PM - 5:59PM 4.76 5.55 5.58 10.87 10.93 11.57 6.63 7.15 7.66 

19 6:00PM - 6:59PM 4.32 4.98 4.92 8.55 9.03 9.65 5.35 5.92 6.44 

20 7:00PM - 7:59PM 3.66 3.90 3.72 5.61 6.01 6.17 4.99 5.29 5.45 

21 8:00PM - 8:59PM 2.95 2.97 2.70 4.25 4.44 4.60 3.89 4.05 4.09 

22 9:00PM - 9:59PM 2.64 2.40 2.01 3.68 3.58 3.52 3.44 3.27 3.06 

23 10:00PM - 10:59PM 2.06 1.64 1.30 2.80 2.41 2.20 2.70 2.21 1.90 

24 11:00PM - 11:59PM 1.23 0.92 0.72 2.45 1.71 1.62 1.81 1.29 1.05 

Total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 

Appendix E1 - Page Number:

103
 D-12 

In the second step, the initial hourly volume is compared to the hourly link capacity (Level-ofService ‘E’) and adjusted if necessary. The adjustment procedure (see Table 12) begins with the 

comparison of AM peak hour traffic and PM peak hour traffic with the available capacity. If the 

initial peak hour volume exceeds capacity, then the peak hour volume is adjusted to equal the 

capacity and the portion of volume exceeding capacity is then apportioned in equal parts to the 

hour before and the hour after the peak hour. In the case of overly congested freeways, the 

capacity is moderated to reflect the fact that the ‘through-put’ volumes cannot be sustained at 

LOS ‘E’ service levels when the V/C ratio exceeds 1.0. Table 13 shows the assumed 

relationship between freeway capacities and congested V/C ratios. Because this adjustment 

could potentially cause the ‘shoulder’ hour volumes to exceed capacity, added steps are 

undertaken to compare the resulting volumes in each successive shoulder hour with the capacity. 

If a given shoulder hour volume exceeds capacity, then the volume is similarly adjusted to equal 

capacity and the ‘overflow’ volume is added to the volume of the adjacent hourly period. Traffic 

assignments on rare occasions produce severely overloaded link volumes to the point where a 

given link volume could exceed the capacity over all hours of the day. Because of this 

possibility, volume adjustments are not made for the first, noon, and last hours (hours 1, 13, and 

24), even if a given link volume is determined to exceed capacity in those particular hours. 

Subsequent to the development of ‘final’ hourly link volumes and restrained speeds, the general 

equation for computing running emissions is: 

 27 

RunningEmih = VMTh * Σ (RRatej * Tpropij) j=1 

Where: 

RunningEmih = Running link emissions at hour h in jurisdiction i 

VMTh = Vehicle Miles Travel (after peak-spreading) at hour h 

RRatej = Running rate (gm/mi) as a function of highway speed for jurisdiction j 

Tpropij = Proportion of daily trips between jurisdiction i/j 

The regional running emissions are the accumulation of calculated hourly emissions over all 

network links in the study area. Emissions in grams are converted to tons using a conversion 

factor of 907,184.74 gm/ton. 

Appendix E1 - Page Number:

104
D-13 

Table 11 

Speed Delay Functions Used in the MWCOG Mobile Emissions Post-Processor 

By 

 Facility Type and Area Type (1-7) 

V/C Freeway Major Arterial Minor Arterial Collector 

Atp-> 1-2 3-4 5-7 1-2 3-4 5 6-7 1-2 3-4 5 6-7 1-2 3-4 5 6-7 

0.00 55.000 60.000 67.000 25.000 35.000 40.000 45.000 20.000 30.000 35.000 40.000 15.000 20.000 25.000 30.00

0.10 54.945 59.945 66.940 24.300 33.600 38.600 43.600 19.400 28.900 33.800 39.200 14.500 19.300 24.300 28.80

0.20 54.890 59.890 66.880 23.600 32.200 37.200 42.200 18.800 27.800 32.600 38.400 14.000 18.600 23.600 27.60

0.30 54.810 59.800 66.790 22.900 30.800 35.800 40.800 18.200 26.700 31.400 37.600 13.500 17.900 22.900 26.40

0.40 54.710 59.690 66.670 22.200 29.400 34.400 39.400 17.600 25.600 30.200 36.800 13.000 17.200 22.200 25.20

0.50 54.570 59.540 66.490 21.500 28.000 33.000 38.000 17.000 24.500 29.000 36.000 12.500 16.500 21.500 24.00

0.60 54.370 59.300 66.180 20.800 27.000 31.600 36.400 16.400 23.400 27.800 35.000 12.000 16.000 20.800 23.00

0.70 54.060 58.910 65.600 20.100 26.000 30.200 34.800 15.800 22.300 26.600 34.100 11.500 15.500 20.100 22.00

0.80 53.540 58.170 64.260 19.400 25.000 28.800 33.200 15.200 21.200 25.400 31.400 11.000 15.000 19.400 21.00

0.90 52.560 56.560 60.840 18.700 24.000 27.400 31.600 14.600 20.100 24.200 28.700 10.500 14.500 18.700 20.00

1.00 50.580 53.220 55.280 18.000 23.000 26.000 30.000 14.000 19.000 23.000 26.000 10.000 14.000 18.000 19.00

1.10 46.860 48.550 49.875 16.600 20.800 23.400 27.200 12.800 17.600 21.000 23.600 9.200 12.800 16.600 17.601.17 44.256 45.281 46.092 15.620 19.260 21.580 25.240 11.960 16.620 19.600 21.920 8.640 11.960 15.620 16.621.20 43.140 43.880 44.470 15.200 18.600 20.800 24.400 11.600 16.200 19.000 21.200 8.400 11.600 15.200 16.201.30 39.335 39.870 40.315 13.800 16.400 18.200 21.600 10.400 14.800 17.000 18.800 7.600 10.400 13.800 14.801.40 35.530 35.860 36.160 12.400 14.200 15.600 18.800 9.200 13.400 15.000 16.400 6.800 9.200 12.400 13.401.50 32.470 32.740 32.990 11.000 12.000 13.000 16.000 8.000 12.000 13.000 14.000 6.000 8.000 11.000 12.001.60 29.410 29.620 29.820 11.000 12.000 13.000 16.000 8.000 12.000 13.000 14.000 6.000 8.000 11.000 12.001.80 24.550 24.700 24.850 11.000 12.000 13.000 16.000 8.000 12.000 13.000 14.000 6.000 8.000 11.000 12.002.00 20.610 20.730 20.860 11.000 12.000 13.000 16.000 8.000 12.000 13.000 14.000 6.000 8.000 11.000 12.002.25 16.650 16.750 16.850 11.000 12.000 13.000 16.000 8.000 12.000 13.000 14.000 6.000 8.000 11.000 12.00

99.99 16.650 16.750 16.850 11.000 12.000 13.000 16.000 8.000 12.000 13.000 14.000 6.000 8.000 11.000 12.00

Appendix E1 - Page Number:105
ATTACHMENT D 

D-14 

Table 12 

Peak Spreading Procedure 

Adjustment Process for Spreading Hourly Volumes When Initial Volumes Exceed Capacity 

 

Step 1: 

The AM peak hour (hour 8) initial volume is compared to the link capacity. If the initial 

hour 8 volume exceeds capacity, then the hour 8 volume is set to capacity (or a moderated 

capacity value in the case of freeways) and the excess volume portion is added to the 

volume in periods occurring before and after the AM peak hour (hours 7 and 9) on a 50/50 

basis. 

Step 2: 

The PM peak hour (hour 18) initial volume is compared to the link capacity. If the initial 

volume exceeds capacity, then the hour 18 volume is set to capacity (or a moderated 

capacity value in the case of freeways) and the excess volume portion is added to the 

volume in periods occurring before and after the PM peak hour (hours 17 and 19) on a 

50/50 basis. 

Step 3: 

The volume occurring during pre-AM peak hours (hours 1 to 7) are sequentially checked 

against the link capacity as in steps 1 and 2, and adjusted (if necessary) in a backwardmoving fashion. If the volume occurring in hour 7 exceeds capacity then the hour 7 

volume is set to capacity and the excess volume portion is added to the volume of hour 6 

volume, and so on. There is no volume spreading at hour 1, even for rare cases where the 

resulting hour 1 volume exceeds capacity. 

Step 4: 

The volume occurring during post-AM peak hours (hours 9 to 13) are sequentially checked 

against the link capacity as in steps 1 and 2, and adjusted (if necessary) in a forwardmoving fashion. If the volume occurring in hour 9 exceeds capacity then the hour 9 

volume is set to capacity and the excess volume portion is added to the volume of hour 10 

volume, and so on. There is no volume spreading at hour 13 (the midday hour), even for 

rare cases where the resulting hour 13 volume exceeds capacity. 

Step 5: 

The volume occurring during pre-PM peak hours (hours 13 to 17) are sequentially checked 

against the link capacity as in steps 1 and 2, and adjusted (if necessary) in a backwardmoving fashion. If the volume occurring in hour 17 exceeds capacity then the hour 17 

volume is set to capacity and the excess volume portion is added to the volume of hour 16 

volume, and so on. There is no volume spreading at hour 13 (the midday hour), even for 

rare cases where the resulting hour 13 volume exceeds capacity. 

Step 6: 

The volume occurring during post-PM peak hours (hours 19 to 24) are sequentially checked 

against the link capacity as in steps 1 and 2, and adjusted (if necessary) in a forwardmoving fashion. If the volume occurring in hour 19 exceeds capacity then the hour 19 

volume is set to capacity and the excess volume portion is added to the volume of hour 20 

volume, and so on. There is no volume spreading at hour 24, even for rare cases where the 

resulting hour 24 volume exceeds capacity. 

Appendix E1 - Page Number:

106
D-15

Table 13 

Freeway Through-Put Capacities Under Congested Conditions 

 

 Fwy Fwy Fwy Fwy Fwy FWY FWY 

V/C AT1 AT2 AT3 AT4 AT5 AT6 AT7 

1.00 1500 1600 1800 1800 2000 2000 2100 

1.20 1433 1528 1719 1719 1911 1911 2006 

1.40 1366 1457 1639 1639 1821 1821 1912 

1.60 1299 1385 1559 1559 1732 1732 1818 

1.80 1214 1295 1457 1457 1619 1619 1699 

2.00 1128 1204 1355 1355 1505 1505 1580 

2.25 1017 1085 1221 1221 1356 1356 1424 

99.99 1017 1085 1221 1221 1356 1356 1424 

4.3 Local Emissions 

Local (or off-network) emissions are those generated on smaller facilities that are not included in 

the regional network. Local emissions are associated with VOC/HC, CO, NOx, and PM 2.5 

pollutants and are computed at jurisdiction level by applying per-mile emission rates to the local 

VMT. However, the local emission calculation requires that local VMT be further allocated 

among urban and rural categories, as the emission calculation is different. The calculation steps 

are listed below: 

 

1) The small file containing base year jurisdictional modeled network VMT, observed local 

VMT, and base year urban/rural local VMT percentages is prepared. 

2) Modeled network VMT for the analysis year is summarized at jurisdiction level and 

merged with the base year information, above. 

3) Local urban and rural VMT is estimated for the analysis year. First, local VMT is 

estimated by applying a growth factor to the base year local VMT. The growth factor is 

based on modeled VMT change between the base year and analysis year. Next, the base 

year urban and rural percentages are applied to the local VMT computed for the analysis 

year. 

4) Local PM2.5 emissions are computed based on total (urban and rural) VMT. 

5) Urban/local NOx, CO, and VOC emissions are computed using the single local/stabilized 

emission factor produced by Mobile. This factor is based on an assumed speed of 12.9 

mph. 

6) Rural/local NOx, CO, and VOC emissions are computed by first allocating the rural 

VMT among speed ‘bins’ using an assumed average speed profile. The profile reflects a 

VMT distribution for rural jurisdictions that was summarized from previous modeling 

files. The profile, shown on Figure 1, was determined to be a reasonable basis for local 

facilities speeds in rural areas. Secondly, rural arterial rates are applied to the VMT on 

the basis of speed. 

Appendix E1 - Page Number:

107
D-16

Previous local emissions calculations have been made using the single (12.9 mph-based) local 

rate. It is believed that the use of arterial rates at higher speed levels will yield a more accurate 

emission result for rural areas of the region. 

Figure 1: 

Arterial/ Rural Speed Profile

0.000%

2.000%

4.000%

6.000%

8.000%

10.000%

12.000%

14.000%

0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Speed Group

Pct. of VMT

 

5.0 Post-Processor Program Steps 

The post-processor is executed when provided with: 1) travel demand output files, 2) emission 

rate files by jurisdiction as described above, and 3) a small text file containing jurisdiction level 

VMT information. The travel demand output files include the final iteration loaded highway 

network (I6HWY.NET) and three vehicle trip tables corresponding to the AM, PM, and off peak 

periods (I6AM.VTT, I6PM.VTT, I6OP.VTT). The jurisdictional VMT file 

(Base_Juris_VMT.txt) is a pre-existing file containing base year estimates of network-based 

VMT, local (or off-network) VMT, and the estimated proportion of network VMT that is urban 

and rural. This information is used to develop future year local VMT that is urban and local. 

All VMT information corresponds only to jurisdictions within the MSA as defined above. 

The post-processor is normally executed using batch files that are called in a command prompt 

window. The batch file used for a single-season post-processor execution (e.g., ozone or 

Appendix E1 - Page Number:

108
D-17

wintertime model runs) is named EMISS.BAT. The batch file used for a three-season postprocessor execution is named 3_Season_EMISS.BAT. The batch files call five TP+ scripts 

which are summarized below. The TP+ script names are in parenthesis: 

1) Trip Table Formatting (AQTRIPS.S): AM, PM, and off-peak trip tables produced by the 

travel demand model are read. The program produces zonal trip-ends for each of the three time 

periods. It also produces a file containing the proportion of daily vehicle trips from/to each of 

the 27 emission areas. Since the trip proportions are developed with daily trips, the proportion 

in the i/j direction is generally the same as that in the j/i direction. 

2) Time-of-Day Trip-Ends Program (ZONESPRD.S): The program reads the zonal origins and 

destinations, described above, and apportions them among discrete hourly periods. 

3) Jurisdiction level VMT Formatting Program (Pre_Local.S): The program summarizes 

modeled VMT at the jurisdiction level and writes a summary file to be used in the LOCAL.S 

program. 

4) Time-of-Day VMT and speeds program (PEAK_SPREAD.S for the single season postprocessor or PEAK_SPREAD_Seasonal.S for the three season post-processor): The program 

reads the AM, PM, and off-peak network link volumes produced by the travel demand model. It 

produces hourly volumes, VMT, and restrained speed for each highway link. The hourly VMT 

and highway speeds are sensitive to seasonal adjustment factors. 

5) Running Emissions Program (RUNNING.S for the single season post-processor or 

RUNNING_Seasonal.S for the three season post-processor): The program computes hot 

stabilized emissions on a link-by-link and hour-by-hour basis. It reads 1) the hourly link VMT 

and highway speed files developed above, 2) MOBILE6-based running emission rates which are 

provided on the basis of speed, and 3) the county level trip proportions file. VOC, CO, and NOx 

emissions are produced from the program (PM 2.5 emissions are additionally produced from the 

three-season run). 

6) Start/Soak Emissions Program (STRT_SKR.S for the single season post-processor or 

STRT_SKR_Seasonal.S for the three season post-processor): The program applies emission 

rates to the trip- ends to compute start-up and soaking emissions on a zone-by-zone and hour-byhour basis. The program reads: 1) hourly trip-ends, 2) the MOBILE6-generated cold/hot starting 

rates, and 3) the county-level trip proportions file. Note that trip tables are not affected by 

seasonal adjustments. VOC, CO, and NOx emissions are produced from the program. 

7) Local Emissions Program (LOCAL.S for the single season post-processor or 

LOCAL_Seasonal.S for the three season post-processor): The program computes hot stabilized 

emissions on a link-by-link and hour-by-hour basis. It reads 1) a file containing forecasted 

local/urban and local/rural VMT at the jurisdiction level and 2) PM2.5 and Arterial NOx 

stabilized rates specially developed for local roads. VOC, CO, and NOx emissions are produced 

from the program (PM 2.5 emissions are additionally produced from the three-season run). 

Appendix E1 - Page Number:

109
D-18

A list of subdirectories established to execute post-processor work is shown on Table 14. Singleseason and three-season flowcharts are shown on Figures 2 and 3. 

Table 14 Post-Processor Subdirectories 

Description of Contents Subdirectory 

Location of Post – Processor Executions/Outputs

 

2002 Ozone Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2002 

2002 Annual Nx Precursor, PM 2.5 I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2002_Season 

 

2010 Ozone Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2010 

2010 Winter Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2010_WCO 

2010 Annual Nx Precursor, PM 2.5 I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2010_Season 

 

2020 Ozone Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2020 

2020 Winter Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2020_WCO 

2020 Annual Nx Precursor, PM 2.5 I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2020_Season 

 

2030 Ozone Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2030 

2030 Winter Season VOC, CO, Nx I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2030_WCO 

2030 Annual Nx Precursor, PM 2.5 I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\2030_Season 

 

Emission Rate Inputs 

2002 VOC, CO, Nx rates Ozone Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2002

2002 VOC, CO, Nx, PM rates– 3 Seasons I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2002_Season

2010 VOC, CO, Nx rates Ozone Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2010

2010 VOC, CO, Nx rates– Winter Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2010_WCO

2010 VOC, CO, Nx, PM rates– 3 Seasons I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2002_Season

2020 VOC, CO, Nx rates Ozone Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2020

2020 VOC, CO, Nx rates– Winter Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2020_WCO

2020 VOC, CO, Nx, PM rates– 3 Seasons I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2020_Season

2030 VOC, CO, Nx rates Ozone Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2030

2030 VOC, CO, Nx rates– Winter Season I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2030_WCO

2030 VOC, CO, Nx, PM rates– 3 Seasons I:\CGV2_1D_50_Aug_06_Conformity2007\EMISSIONS\M6RATES\2030_Season

 

Travel Model Inputs 

2002 Travel Model Files I:\CGV2_1D_50_Aug_06_Conformity2007\2002 

2010 Travel Model Files I:\CGV2_1D_50_Aug_06_Conformity2007\2010 

2020 Travel Model Files I:\CGV2_1D_50_Aug_06_Conformity2007\2020 

2030 Travel Model Files I:\CGV2_1D_50_Aug_06_Conformity2007\2030 

Appendix E1 - Page Number:

110
D-19

Figure 2 

Mobile Emissions Post Processor

Ozone Season / Wintertime Emissions Data Processing Flowchart -- Job stream executed once with one set of environment variables.

EMISS.BAT

Environmental variables established in batch file:

_PeriodFtr_ =1.05

_Period_ =? (summer, winter)

_Year_ =? 

_inpnet_ =? 'final' loaded links file path/name

_inpamt_ =? 'final' AM Vehicle trip table file path/name 

_inppmt_ =? 'final' AM Vehicle trip table 

_inpopt_ =? 'final' AM Vehicle trip table 

_inplocalB_ =? 'Base year local VMT file / Juris. level 

_M6Sub_=? Path to the modeled emission rates

_M6Pre_=? Filename prefix of modeled emission rates

i224hrve.tt Balanced 24-hour vehicle trips - binary matrix 2,191x 2,191

AM Vehicle Trips (_inpamt_ ) AQTRIP.S trip.end 24-hour trip-ends (AM, PM, Off-pk.) - text file

PM Vehicle Trips (_inppmt_) trip.dst 27x27 Trip distribution - text file

OffPk Veh. Trips (_inpopt_ )

ZONESPRD.S hrlyorig.asc Hourly zonal vehicle trip origins - text file

hrlydest.asc Hourly zonal vehicle trip destinations - text file

temp.net 

Loaded Links file (_inpnet_ ) PEAK_SPREAD.S hourlylk.vmt 

hourlylk.spd

Running ramp/soak rates by Jur. (*.ram) RUNNING.S running.txt (copied to) _Year__Period_ _running.txt jurisdiction level summary - running emissions

Running freeway rates by Jur. (*.r_f)

Running arterial rates by Jur. (*.r_a)

Running PM2.5 rates by Jur. (*.N_L)

Running ramp/soak rates by Jur. (*.ram) STRT_SKR.S strt_skr.txt (copied to) _Year__Period_ _strt_skr.txt jurisdiction level summary - starting emissions

Running ramp/starting rates by Jur. (*.stt)

 Base Year Jurisdictional VMT

 Base_Juris_VMT.txt PRE_LOCAL.S Futr_Juris_VMT.txt

Local rural arterial rates by Jur. (*.rra)

Running PM2.5 rates by Jur. (*.N_L) LOCAL.S local.txt (copied to ) _Year__Period_ _local.txt jurisdiction level summary - local emissions

Appendix E1 - Page Number:

111
D-20

Figure 3 

Mobile Emissions Post Processor

Multiple Season Emissions Data Processing Flowchart -- Job stream executed 3 times with altered environment variables.

3_Season_Emiss.BAT

Environmental variables established in batch file:

_SeasonFtr_ =? (0.9216, 0.9873, 0.9282)

_SeasonDays_ =? (120, 153, 92)

_SeasonRateNo_ =? ( 1, 2, 3) 

_Season_ =? (Jan-Apr, May_Sep, Oct-Dec)

_Year_ = (2002, 2010, 2020, 2030) 

_inpnet_ =? 'final' loaded links file path/name

_inpamt_ =? 'final' AM Vehicle trip table file path/name 

_inppmt_ =? 'final' AM Vehicle trip table 

_inpopt_ =? 'final' AM Vehicle trip table 

_inplocalB_ =? 'Base year local VMT file / Juris. level 

_M6Sub_=? Path to the modeled emission rates

_M6HCPre_=? Filename prefix of modeled VOC emission rates

_M6COPre_=? Filename prefix of modeled CO emission rates

_M6NXPre_=? Filename prefix of modeled Nx emission rates

_M6PMPre_=? Filename prefix of modeled PM emission rates

i224hrve.tt Balanced 24-hour vehicle trips - binary matrix 2,191x 2,191

AM Vehicle Trips (_inpamt_ ) AQTRIP.S trip.end 24-hour trip-ends (AM, PM, Off-pk.) - text file

PM Vehicle Trips (_inppmt_) trip.dst 27x27 Trip distribution - text file

OffPk Veh. Trips (_inpopt_ )

ZONESPRD.S hrlyorig.asc Hourly zonal vehicle trip origins - text file

hrlydest.asc Hourly zonal vehicle trip destinations - text file

temp.net 

Loaded Links file (_inpnet_ ) PEAK_SPREAD_Seasonal.S hourlylk.vmt 

hourlylk.spd

Seasonal VOC ramp/soak rates by Jur. (*.rmH)

Seasonal CO ramp/soak rates by Jur. (*.rmC)

Seasonal NOx ramp/soak rates by Jur. (*.rmN)

Seasonal VOC frwy running rates by Jur. (*.rfH)

Seasonal CO frwy running rates by Jur. (*.rfC)

Seasonal Nox frwy running rates by Jur. (*.rfN) RUNNING_Seasonal.S running.txt (copied to) _Year__Season_ _running.txt jurisdiction level summary

Seasonal VOC art. running rates by Jur. (*.arH) running emissions

Seasonal CO art. running rates by Jur. (*.arC)

Seasonal Nox art. running rates by Jur. (*.arN)

Running PM2.5 rates by Jur. (*.N_L)

Seasonal soak/dirnl/rest rates by Jur. (*.sdr) STRT_SKR_Seasonal.S strt_skr.txt (copied to) _Year__Season_ _strt_skr.txt jurisdiction level summary 

Seasonal starting HC rates by Jur. (*.stH) starting emissions

Seasonal starting CO rates by Jur. (*.stC)

Seasonal starting Nox rates by Jur. (*.stN)

 Base Year Jurisdictional VMT

 Base_Juris_VMT.txt PRE_LOCAL.S Futr_Juris_VMT.txt

Seasonal Local VOC rural arterial running rates by Jur. (*.rrH)

Seasonal Local CO rural arterial running rates by Jur. (*.rrC)

Seasonal Local Nox rural arterial running rates by Jur. (*.rrH)

Seasonal Local VOC urban rates by Jur.(*.LCH) LOCAL_Seasonal.S local.txt (copied to ) _Year__Season_ _local.txt jurisdiction level summary 

Seasonal Local CO urban rates by Jur. (*.LCC) Local emissions

Seasonal Local NOxurban rates by Jur. (*.LCN)

Seasonal PM2.5 rates by Jur. (*.N_L)

Appendix E1 - Page Number:

112
ATTACHMENT E 

Appendix E1 - Page Number:

113
ATTACHMENT E 

Memo

To: SIP Air Quality Files 

From: Eulalie G. Lucas 

Date: February 5, 2007 

Re: Vehicle Related Emissions: Diurnal and Resting Loss for the 8-Hour Ozone 

Standard SIP 

This memo illustrates the calculation of Diurnal and Resting Loss emissions associated with 

the 8-hour ozone standard SIP and documents recent updates to the travel portion of the 

analysis. Maureen Mullen of E.H. Pechan & Associates documented the development of 

Mobile factors in a memo dated January 27, 2003. Applying the approach developed by E.H. 

Pechan & Associates emissions rates were developed using version 6.2 of Mobile model. 

As with the other components of the Mobile source inventory the following two updates were 

used in the calculation of diurnal and resting loss emissions: (1) Base year 2002 vehicle 

registration data were replaced with later 2005 registration data for the District of Columbia, 

Maryland and Virginia. (2) Staff prepared updated vehicle forecasts based upon the 2005 

control totals, in conjunction with growth factors previously developed by DTP staff and 

documented in the October 2005 Air Quality Conformity report. 

Vehicle ownership forecasts reflect trends through time for each jurisdiction; given the 2005 

data, the slope of the forecast trend line in each jurisdiction was maintained but revised to 

‘intercept’ 2005 conditions. The attached graph for Prince George’s County illustrates the 

approach used for forecasting vehicle registration and Table 1 shows the summary of vehicle 

registration forecasts. Also included is a copy of a spreadsheet, Table 2, displaying the 

calculation of diurnals and resting loss emissions for year 2009 controlled conditions. Diurnal 

and Resting Loss emissions for the other milestone years 2002, 2008 controlled and 

uncontrolled and 2009 uncontrolled are available in the SIP mobile source files. 

The calculation of these emissions is an off-line process utilizing a spreadsheet format with a 

very basic calculation: 

Number of vehicles by jurisdiction X jurisdiction emissions factor = Emissions 

Attachments (3) 

Appendix E1 - Page Number:

114
Jurisdiction 2002 2005 2008 2009 2010 

District of Columbia 254,645 258089 262,681 261,533 263,829 27

 

Calvert 73,179 82957 95,994 92,735 99,254 13

 

Charles 114,048 124127 137,565 134,206 140,925 17

 

Frederick 190,883 207247 229,065 223,611 234,520 28

 

Mont

gomer

y 638,573 681537 738,822 724,501 753,144 89

 

Prince Geor

ge's 560,595 588643 626,040 616,691 635,390 72

 

Alexandria 130,371 132130 134,476 133,889 135,062 14

 

Arlin

gton 126,600 128304 130,576 130,008 131,144 13

 

Fairfax 745,721 787210 842,529 828,699 856,359 99

 

Loudoun 184,988 203133 227,326 221,278 233,375 29

 

Prince William 299,706 323356 354,889 347,006 362,773 44

 

Stafford 82,415 91656 103,978 100,897 107,058 13

 

Total 3401724 3608389 3815054 3883942 3952831 46

The above forecasts are based on 2005 vehicle registration data decoded from raw VIN numbers provided by District of Columbia DMV, Mary

TABLE 1

REGISTRATIONS ADJUSTED TO YEAR 200

5

VEHICLE REGISTRATION FORECASTS BY JURISDICTION (USING GROWTH RATES & 

E-2

Appendix E1 - Page Number:115
TOTAL DIURNAL RESTGL DIURNAL RESTGL EMISSIONS

Jurisdiction VEHICLES (gm/day/veh) (gm/hr/veh) (Tons/day) (Tons/day) DIURNAL RESTGL

(Tons/day) (Tons/day)

District of Columbia 262,681 0.453 2.263 0.1285 0.6422 DC 0.13 0.64

Montgomery 738,822 0.448 1.948 0.3576 1.5547 MONTG 0.36 1.55

Prince Georges 626,040 0.539 2.524 0.3645 1.7070

Frederick 229,065 0.388 1.723 0.0960 0.4264 PG 0.36 1.71

Charles 137,565 0.555 2.627 0.0825 0.3904

Calvert 95,994 0.559 2.677 0.0580 0.2776 FRED 0.10 0.43

 CHAS 0.08 0.39

Arlington 130,576 0.428 2.097 0.0604 0.2958 CAL 0.06 0.28

Alexandria 134,476 0.361 1.742 0.0524 0.2531

Fairfax 842,529 0.412 1.938 0.3750 1.7639 ARL 0.06 0.30

Loudoun 227,326 0.378 1.798 0.0928 0.4415

Prince William 354,889 0.443 2.174 0.1698 0.8335 ALEX 0.05 0.25

 

 FFX 0.37 1.76

MSA - SUBTOTAL 3,779,965 1.838 8.586

MODELED AREA LDN 0.09 0.44

TOTAL 3,779,965 1.838 8.586 PR.W 0.17 0.83

Note: 98% of vehicles, which are gas operated, are used to compute Diurnal and Resting Loss emission 

Based on 2005 vehicle registration

TOTAL 1.838 8.586

 FACTORS EMISSIONS

Table - 2

DIURNAL AND RESTING LOSS EMISSIONS

VOC

2009 Controlled 

E-3

Appendix E1 - Page Number:

116
MVA 2005 Vehicle Registration Data E-4

Vehicle Registration For Prince George's County B

100,000150,000200,000250,000300,000350,000400,000450,000500,000550,000600,000650,000700,000

2002 2003 2004 2005 2006 2007 2

Year 

Number of Vehicles 

Appendix E1 - Page Number:117
ATTACHMENT F 

Appendix E1 - Page Number:

118
Attachment F 

F-1 

National Capital Region Transportation Planning Board

777 North Capitol Street, N.E., Suite 300, Washington, D.C. 20002-4290 (202) 962-3310 Fax: (202) 962-3202

MEMORANDUM 

February 6, 2007 

TO: Files 

FROM: Jane A. Posey 

 Senior Transportation Engineer 

SUBJECT: 2008 and 2009 School Bus and Transit Bus Off-line Emissions 

Development for 8-Hour Ozone SIP 

This memo discusses the development of ozone season VOC and NOx emissions 

estimates for transit buses and school buses for the 8-hour ozone SIP. Estimates 

were calculated for 2008 and 2009 forecast years for the 8-hour ozone SIP 

geography, which is shown on the map included as Exhibit 1. 

For the development of school bus and transit bus emissions estimates staff used 

survey data collected from regional transit agencies. Collected data include fleet 

distribution by age, daily VMT and average operating speeds. The collection and 

use of these data are thoroughly documented in Appendix H of each year’s air 

quality conformity report. 

Emission Estimates

For the emissions estimates, base year (survey) daily VMT figures were factored to 

produce daily VMT for each forecast year. Fleet age distributions from the survey 

were input to the Mobile6.2 model to produce emission factors for each pollutant, by 

speed. Using the appropriate emission factor, based on the average operating speed 

for each provider, staff calculated VOC and NOx emissions for transit buses and 

school buses for the two analysis years. Exhibit 2 shows 2008 bus emission factors. 

Exhibit 3 shows the completed school bus table with resulting emissions for 2008. 

Exhibit 4 shows the completed transit bus table for 2008. Tables for 2009 are 

similar, and are available upon request. 

Appendix E1 - Page Number:

119
Attachment F 

F-2 

Results

The following table shows the 2008 and 2009 school bus and transit bus emissions 

estimates resulting from the procedure described above: 

 

 Base 2002 

2008 

Uncontrolled 

2008 

Controlled 

2009 

Uncontrolled 

2009 

Controlled 

 

 VOC NOx VOC NOx VOC NOx VOC NOx VOC NOx 

School 

Buses 0.42 5.97 0.40 5.34 0.40 5.23 0.39 5.14 0.38 4.97

Transit 

Buses 0.38 6.43 0.22 4.64 0.22 4.42 0.23 4.89 0.23 4.52

Appendix E1 - Page Number:

120
Attachment F 

F-3 

Washington 

Berkeley 

 WV

Frederick 

Carroll 

Baltimore Co.

Harford 

Anne Arundel 

Howard 

Montgomery 

Loudoun 

Jefferson 

 WV

Clarke 

Warren 

Fauquier 

Culpeper 

Spotsylvania

Stafford 

King George 

Charles 

St Mary's 

Calvert 

Prince George's 

Fairfax Co.

Prince William 

DC

Arlington 

Alexandria

Baltimore

 City

EXHIBIT 1

Washington, D.C. - Maryland - Virginia

8-Hour Ozone Non-Attainment Area

N

W E

S

Modeled Area

8-hour ozone non-attainment area

Appendix E1 - Page Number:

121
Speed (mph) VOC NOx VOC NOx

1.00 2.164 18.655 1.374 22.868

2.00 2.164 18.655 1.374 22.868

3.00 2.077 18.02 1.318 22.082

4.00 1.967 17.227 1.249 21.101

5.00 1.902 16.751 1.207 20.512

6.00 1.766 15.79 1.121 19.325

7.00 1.668 15.104 1.059 18.476

8.00 1.595 14.59 1.012 17.84

9.00 1.538 14.19 0.976 17.345

10.0 1.493 13.87 0.948 16.949

11.0 1.413 13.332 0.897 16.285

12.0 1.346 12.885 0.854 15.731

13.0 1.289 12.506 0.818 15.263

14.0 1.24 12.181 0.787 14.861

15.0 1.198 11.9 0.76 14.513

16.0 1.144 11.57 0.726 14.106

17.0 1.097 11.279 0.696 13.746

18.0 1.055 11.021 0.669 13.426

19.0 1.017 10.79 0.645 13.14

20.0 0.983 10.581 0.624 12.883

21.0 0.945 10.384 0.6 12.639

22.0 0.911 10.205 0.578 12.417

23.0 0.879 10.041 0.558 12.214

24.0 0.851 9.891 0.54 12.029

25.0 0.824 9.753 0.523 11.858

26.0 0.797 9.653 0.506 11.734

27.0 0.772 9.56 0.49 11.619

28.0 0.749 9.474 0.475 11.513

29.0 0.727 9.394 0.461 11.414

30.0 0.707 9.319 0.449 11.321

31.0 0.687 9.299 0.436 11.297

32.0 0.668 9.281 0.424 11.274

33.0 0.651 9.263 0.413 11.253

34.0 0.635 9.247 0.403 11.232

35.0 0.619 9.232 0.393 11.213

36.0 0.605 9.287 0.384 11.282

37.0 0.591 9.34 0.375 11.347

38.0 0.579 9.389 0.367 11.408

39.0 0.566 9.437 0.359 11.467

MWCOG 2008 Ozone Season Diesel Bus Emission Factors

Exhibit 2

(8-hour ozone non-attainment area)

School Bus Transit Bus

Diesel Bus Emission Factors (grams/mile)

F-4

Appendix E1 - Page Number:

122
Speed (mph) VOC NOx VOC NOx

MWCOG 2008 Ozone Season Diesel Bus Emission Factors

Exhibit 2

(8-hour ozone non-attainment area)

School Bus Transit Bus

Diesel Bus Emission Factors (grams/mile)

40.0 0.555 9.482 0.352 11.522

41.0 0.545 9.616 0.346 11.689

42.0 0.535 9.745 0.339 11.848

43.0 0.525 9.867 0.333 11.999

44.0 0.517 9.984 0.328 12.144

45.0 0.508 10.096 0.322 12.282

46.0 0.501 10.324 0.318 12.564

47.0 0.494 10.542 0.314 12.833

48.0 0.488 10.751 0.31 13.092

49.0 0.482 10.951 0.306 13.34

50.0 0.476 11.144 0.302 13.578

51.0 0.471 11.49 0.299 14.006

52.0 0.467 11.823 0.296 14.418

53.0 0.463 12.143 0.294 14.814

54.0 0.459 12.451 0.291 15.195

55.0 0.455 12.749 0.289 15.563

56.0 0.453 13.256 0.288 16.19

57.0 0.451 13.745 0.286 16.795

58.0 0.449 14.217 0.285 17.379

59.0 0.447 14.673 0.284 17.943

60.0 0.445 15.115 0.283 18.489

61.0 0.445 15.85 0.283 19.399

62.0 0.445 16.562 0.283 20.279

63.0 0.445 17.252 0.283 21.132

64.0 0.445 17.92 0.283 21.958

65.0 0.445 18.567 0.283 22.759

F-5

Appendix E1 - Page Number:

123
EXHIBIT 3 

2002 2008 Average

Jurisdiction

Daily 

VMT Daily VMT Speed

factors 

(g/mile) emissions (grams)

emissions 

(tons)

factors 

(g/mile) emissions (grams)

emissions 

(tons)

District of Columbia 12,696 13,331 14 1.2400 16530.1920 0.0182 12.1810 162382.4748 0.1790 4Montgomery 100,000 105,000 30 0.7070 74235.0000 0.0818 9.3190 978495.0000 1.0786 2Prince George's 129,967 136,465 30 0.7070 96481.0025 0.1064 9.3190 1271720.5967 1.4018 2Frederick 25,589 26,868 30 0.7070 18995.9942 0.0209 9.3190 250387.0856 0.2760 2Charles 20,801 21,841 30 0.7070 15441.6224 0.0170 9.3190 203536.7450 0.2244 2Calvert 25,653 26,936 30 0.7070 19043.5046 0.0210 9.3190 251013.3224 0.2767 2Alexandria 2,028 2,129 25 0.8240 1754.6256 0.0019 9.7530 20768.0382 0.0229 2Arlington 2,600 2,730 25 0.8240 2249.5200 0.0025 9.7530 26625.6900 0.0293 2Fairfax 96,524 101,350 30 0.7070 71654.5914 0.0790 9.3190 944482.5138 1.0411 2Prince William 36,114 37,920 30 0.7070 26809.2279 0.0296 9.3190 353373.6843 0.3895 2Loudoun 28,347 29,764 30 0.7070 21043.3955 0.0232 9.3190 277373.9777 0.3058 2

TOTAL 480,319 364238.6759 0.4015 4740159.1283 5.2251 

* MSA excluding Stafford County

VOC NOx 

FY2006-2011 TIP / 2005 CLRP AIR QUALITY CONFORMITY ANALYSIS

2008 SCHOOL BUS CHARACTERISTICS / EMISSIONS 

(8-hour ozone area *)

2008_ dtpvin_8hr ozone school bus emissions.xls 2/27/2007 

Appendix E1 - Page Number:124
EXHIBIT 4 

2008 Average

Jurisdiction Operator

VMT w/o 

Stafford Speed

factors 

(g/mile) emissions (grams)

emissions 

(tons)

factors 

(g/mile) emissions (grams)

emiss

(ton

District of Columbia Metrobus 50,552 10 0.9480 47923.2960 0.0528 16.9490 856805.8480 0.District of Columbia MTA Commuter buses 2,510 45 0.3220 808.2200 0.0009 12.2820 30827.8200 0.District of Columbia Peter Pan / Trailways 200 55 0.2890 57.8000 0.0001 15.5630 3112.6000 0.District of Columbia Carolina Trailways 20 55 0.2890 5.7800 0.0000 15.5630 311.2600 0.District of Columbia Capitol Trailways 100 55 0.2890 28.9000 0.0000 15.5630 1556.3000 0.District of Columbia Martz / Grey Line sightseeing 500 55 0.2890 144.5000 0.0002 15.5630 7781.5000 0.District of Columbia New World Tours 100 20 0.6240 62.4000 0.0001 12.8830 1288.3000 0.District of Columbia Georgetown U. shuttle 100 15 0.7600 76.0000 0.0001 14.5130 1451.3000 0.District of Columbia American U. shuttle 83 20 0.6240 51.7920 0.0001 12.8830 1069.2890 0.District of Columbia George Washington U shuttle 100 15 0.7600 76.0000 0.0001 14.5130 1451.3000 0.District of Columbia EPA Shuttle 200 15 0.7600 152.0000 0.0002 14.5130 2902.6000 0.District of Columbia USDOT Shuttle 200 15 0.7600 152.0000 0.0002 14.5130 2902.6000 0.District of Columbia Gallaudet Shuttle 100 15 0.7600 76.0000 0.0001 14.5130 1451.3000 0.District of Columbia Metro Access - paratransit 5,000 15 0.7600 3800.0000 0.0042 14.5130 72565.0000 0.Maryland Corridor Transit (CTC) 1,265 18 0.6690 846.2850 0.0009 13.4260 16983.8900 0.Maryland Peter Pan / Trailways 1,800 55 0.2890 520.2000 0.0006 15.5630 28013.4000 0.Maryland Carolina Trailways 225 55 0.2890 65.0250 0.0001 15.5630 3501.6750 0.Maryland Capitol Trailways 400 55 0.2890 115.6000 0.0001 15.5630 6225.2000 0.Maryland Martz / Grey Line sightseeing 2,250 55 0.2890 650.2500 0.0007 15.5630 35016.7500 0.Maryland New World Tours 100 20 0.6240 62.4000 0.0001 12.8830 1288.3000 0.Montgomery Metrobus 17,262 15 0.7600 13119.1200 0.0145 14.5130 250523.4060 0.Montgomery MTA Commuter buses 2,180 45 0.3220 701.9600 0.0008 12.2820 26774.7600 0.Montgomery Mont. Co. Ride-On 35,616 15 0.7600 27068.1600 0.0298 14.5130 516895.0080 0.Prince George's Metrobus 24,660 15 0.7600 18741.6000 0.0207 14.5130 357890.5800 0.Prince George's MTA Commuter buses 6,840 45 0.3220 2202.4800 0.0024 12.2820 84008.8800 0.Prince George's PG Co. The Bus 9,723 15 0.7600 7389.4800 0.0081 14.5130 141109.8990 0.

VOC 

FY2006-2011 TIP / 2005 CLRP AIR QUALITY CONFORMITY ANALYSIS

2008 TRANSIT BUS CHARACTERISTICS / EMISSIONS

(8-hour ozone area*)

NOx

2008_ dtpvin_ 8hr ozone transit bus emissions.xls 2/27/2007 

Appendix E1 - Page Number:125
EXHIBIT 4 

2008 Average

Jurisdiction Operator

VMT w/o 

Stafford Speed

factors 

(g/mile) emissions (grams)

emissions 

(tons)

factors 

(g/mile) emissions (grams)

emiss

(ton

VOC 

2008 TRANSIT BUS CHARACTERISTICS / EMISSIONS

(8-hour ozone area*)

NOx

Prince George's ShuttleUM (U. of MD) 1,864 11 0.8970 1672.0080 0.0018 16.2850 30355.2400 0.Prince George's P.G. Co. paratransit 3,000 15 0.7600 2280.0000 0.0025 14.5130 43539.0000 0.

Frederick MTA Commuter buses 370 45 0.3220 119.1400 0.0001 12.2820 4544.3400 0.Frederick Fredrick Co. TransiT 3,082 12 0.8540 2632.0280 0.0029 15.7310 48482.9420 0.Charles MTA Commuter buses 2,290 45 0.3220 737.3800 0.0008 12.2820 28125.7800 0.Calvert MTA Commuter buses 1,080 45 0.3220 347.7600 0.0004 12.2820 13264.5600 0.Virginia Metrobus 30,825 15 0.7600 23427.0000 0.0258 14.5130 447363.2250 0.Virginia Lee Coaches 49 45 0.3220 15.7780 0.0000 12.2820 601.8180 0.Virginia Brooks Transit 525 45 0.3220 169.0500 0.0002 12.2820 6448.0500 0.Virginia Quicks Commuter Service 924 45 0.3220 297.5280 0.0003 12.2820 11348.5680 0.Virginia National Coach Works 1,155 45 0.3220 371.9100 0.0004 12.2820 14185.7100 0.Virginia Greyhound / Trailways (VA) 3,500 55 0.2890 1011.5000 0.0011 15.5630 54470.5000 0.Virginia Carolina Trailways 158 55 0.2890 45.5175 0.0001 15.5630 2451.1725 0.Virginia Martz / Grey Line sightseeing 1,575 55 0.2890 455.1750 0.0005 15.5630 24511.7250 0.Virginia New World Tours 70 20 0.6240 43.6800 0.0000 12.8830 901.8100 0.Alexandria Alexandria DASH 3,454 13 0.8180 2825.3720 0.0031 15.2630 52718.4020 0.Alexandria Old Town "trolley" buses 300 20 0.6240 187.2000 0.0002 12.8830 3864.9000 0.Alexandria Alexandria DOT-paratransit 924 15 0.7600 702.2400 0.0008 14.5130 13410.0120 0.Arlington Arlington Co. ART 794 16 0.7260 576.4440 0.0006 14.1060 11200.1640 0.Arlington Crystal City Express 96 15 0.7600 72.9600 0.0001 14.5130 1393.2480 0.Arlington Skyline Crystal Express 144 15 0.7600 109.4400 0.0001 14.5130 2089.8720 0.Arlington Arlington STAR-paratransit 3,245 15 0.7600 2466.2000 0.0027 14.5130 47094.6850 0.Fairfax Fairfax Connector 18,036 15 0.7600 13707.3600 0.0151 14.5130 261756.4680 0.Fairfax Washington Flyer Coach Service 1,370 65 0.2830 387.7100 0.0004 22.7590 31179.8300 0.Fairfax Fairfax Co. Fastran- paratransit 11,427 15 0.7600 8684.5200 0.0096 14.5130 165840.0510 0.Fairfax City of Fairfax CUE 1,483 15 0.7600 1127.0800 0.0012 14.5130 21522.7790 0.

2008_ dtpvin_ 8hr ozone transit bus emissions.xls 2/27/2007 

Appendix E1 - Page Number:126
EXHIBIT 4 

2008 Average

Jurisdiction Operator

VMT w/o 

Stafford Speed

factors 

(g/mile) emissions (grams)

emissions 

(tons)

factors 

(g/mile) emissions (grams)

emiss

(ton

VOC 

2008 TRANSIT BUS CHARACTERISTICS / EMISSIONS

(8-hour ozone area*)

NOx

Fairfax

City of Ffx, City Wheelsparatransit. 100 15 0.7600 76.0000 0.0001 14.5130 1451.3000 0.

Fairfax

City of Falls Ch. Fare Wheelsparatransit 100 15 0.7600 76.0000 0.0001 14.5130 1451.3000 0.

Prince William PRTC Omnilink 4,038 15 0.7600 3068.8800 0.0034 14.5130 58603.4940 0.Prince William PRTC OmniRide 5,700 27 0.4900 2793.0000 0.0031 11.6190 66228.3000 0.Loudoun Loudoun Transportation Assc. 4,532 15 0.7600 3444.3200 0.0038 14.5130 65772.9160 0.Loudoun Loudoun Commuter Service 1,866 25 0.5230 975.9180 0.0011 11.8580 22127.0280 0.Loudoun

Loudoun Transit (LCTA)- paratransit 100 15 0.7600 76.0000 0.0001 14.5130 1451.3000 0.

TOTAL 270,262 199879.3465 0.2203 4013459.2545 4.

Notes: 1) Used WMATA percent VMT by jurisdiction from FY03-08 AQC, Appendix I (page I-3) 

2) Assumed average freeway speed of 55 mph where higher than 55 speed limit is available,  and 45 mph where speed limit is 55

* MSA excluding Stafford County

2008_ dtpvin_ 8hr ozone transit bus emissions.xls 2/27/2007 

Appendix E1 - Page Number:127
ATTACHMENT G 

Appendix E1 - Page Number:

128
 G-1 

National Capital Region Transportation Planning Board

777 North Capitol Street, N.E., Suite 300, Washington, D.C. 20002-4290 (202) 962-3310 Fax: (202) 962-3202

MEMORANDUM 

February 8, 2007 

TO: Files 

FROM: Jane A. Posey 

 Senior Transportation Engineer 

SUBJECT: 2008 and 2009 Auto Access to Transit Off-line Emissions Development 

for 8-Hour Ozone SIP 

This memo discusses the development of ozone season VOC and NOx emissions 

estimates for auto access to transit for the 8-hour ozone SIP. Estimates were 

calculated for 2008 and 2009 forecast years for the 8-hour ozone SIP geography, which 

is shown on the map included as Exhibit 1. 

Emission Estimates

Emissions factors for auto access to transit were developed for each component of the 

trip cycle: a start up rate for trip origins, a running rate for the running component, 

and a hot soak rate for trip destinations. These three rates represent an average of the 

twelve composite rates for jurisdictions in the non-attainment area and for seven 

MOBILE6 vehicle types. Heavy Duty Diesel fractions were zeroed out of the VMT Mix. 

This adjustment was made based on the assumption that heavy duty vehicles, such as 

tractor trailers, are not used by commuters for trips to and from transit locations or to 

park and ride lots. 

Survey data, including information about park-and-ride lot occupancy and user trip 

origin, provide a base year (2002) trip total and VMT total for each parking lot. 

Forecast year data were estimated by applying the transit trip growth rate from the 

travel demand portion of the air quality conformity analysis of the 2005 Constrained 

Long Range Plan (CLRP) and the FY2006-2011 Transportation Improvement Plan 

(TIP). 

Appendix E1 - Page Number: ATTACHMENT G 

129
 G-2 

Emissions were calculated simply by multiplying each emissions rate by the 

appropriate part of the trip cycle. The general process is: 

 EMISSIONS = TRAVEL X EMISSIONS RATE

 Start Up = Trip Origins X Rate per Trip 

 Running = VMT X Rate by Vehicle Speed 

 Hot Soak = Trip Destinations X Rate per Trip 

Running emissions were calculated by applying the appropriate factor (35 mph for 

arterials and 45 mph for freeways) to VMT within the non-attainment area. Trip-end 

emissions (cold start and hot soak) were calculated by applying the appropriate factor 

to each trip (to and from the parking lot) in the non-attainment area. For trips 

originating outside the MSA, only one cold-start and one hot-soak were included in the 

calculation. 

Exhibits 2, 3, 4, and 5 show the VOC and NOx auto access calculations provided for the 

8-hour ozone SIP for the 2008 and 2009 forecast years. 

Appendix E1 - Page Number:

130
Washington 

Berkeley 

 WV

Frederick 

Carroll 

Baltimore Co.

Harford 

Anne Arundel 

Howard 

Montgomery 

Loudoun 

Jefferson 

 WV

Clarke 

Warren 

Fauquier 

Culpeper 

Spotsylvania

Stafford 

King George 

Charles 

St Mary's 

Calvert 

Prince George's 

Fairfax Co.

Prince William 

DC

Arlington 

Alexandria

Baltimore

 City

EXHIBIT 1

Washington, D.C. - Maryland - Virginia

8-Hour Ozone Non-Attainment Area

N

W E

S

Modeled Area

8-hour ozone non-attainment area

Appendix E1 - Page Number:

131
EXHIBIT 2

E M I S S I O N S 

2008 2008 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.10 1.10 1.1500 0.1983 

COMMUTER RAIL LOTSBRUNSWICK 25% 25 305 102 407 334 111 7.5 3052.5 3,343 57 43 1,905 1,437 0.0010 0.0008 

PT OF ROCKS 25% 25 204 68 272 223 74 7.5 2040 2,234 57 43 1,273 961 0.0007 0.0006 

DICKERSON 0 15 0 15 16 0 7.5 112.5 123 57 43 70 53 0.0000 0.0000 

BARNESVILLE 0 46 0 46 50 0 7.5 345 378 57 43 215 162 0.0001 0.0001 

GERMANTOWN 0 386 0 386 423 0 7.5 2895 3,170 57 43 1,807 1,363 0.0011 0.0008 

MET GROVE 0 352 0 352 385 0 7.5 2640 2,891 57 43 1,648 1,243 0.0010 0.0007 WAS GROVE 0 15 0 15 16 0 7.5 112.5 123 57 43 70 53 0.0000 0.0000 

GARRETT PARK 0 22 0 22 24 0 7.5 165 181 57 43 103 78 0.0001 0.0000 

BOWIE 50% 50 188 188 375 205 205 7.5 2812.5 3,080 57 43 1,756 1,324 0.0008 0.0008 

SEABROOK 15% 15 224 40 264 246 43 7.5 1980 2,168 57 43 1,236 932 0.0007 0.0005 

KENSINGTON 0 45 0 45 49 0 7.5 337.5 370 57 43 211 159 0.0001 0.0001 

LAUREL 30% 30 209 90 299 229 98 7.5 2242.5 2,456 57 43 1,400 1,056 0.0007 0.0006 

GAITHESBURG 0 280 0 280 307 0 7.5 2100 2,300 57 43 1,311 989 0.0008 0.0006 

BERWYN HEIGHTS 0 30 0 30 33 0 4.5 135 148 57 43 84 64 0.0001 0.0000 

RIVERDALE 0 65 0 65 71 0 4.5 292.5 320 57 43 183 138 0.0002 0.0001 

0 0

METRO RAIL LOTS 0 0

ADDISON ROAD 40% 40 791 527 1318 866 577 7.5 9885 10,825 57 43 6,171 4,655 0.0029 0.0027 ARCHIVES 0 12 0 12 13 0 4.5 54 59 57 43 34 25 0.0000 0.0000 ARLING 0 10 0 10 11 0 4.5 45 49 57 43 28 21 0.0000 0.0000 

BALLSTON 0 1175 0 1175 1287 0 4.5 5287.5 5,791 57 43 3,301 2,490 0.0033 0.0014 

BENN.RD 0 520 0 520 569 0 4.5 2340 2,563 57 43 1,461 1,102 0.0014 0.0006 BETH 0 395 0 395 433 0 4.5 1777.5 1,947 57 43 1,110 837 0.0011 0.0005 

BRADD RD 0 10 0 10 11 0 4.5 45 49 57 43 28 21 0.0000 0.0000 

BROOKLAND 0 27 0 27 30 0 4.5 121.5 133 57 43 76 57 0.0001 0.0000 

CHEVERLY 0 557 0 557 610 0 4.5 2506.5 2,745 57 43 1,565 1,180 0.0015 0.0007 

CLARENDON 0 554 0 554 607 0 4.5 2493 2,730 57 43 1,556 1,174 0.0015 0.0007 CLEVELAND PK 0 366 0 366 401 0 4.5 1647 1,804 57 43 1,028 776 0.0010 0.0004 

COURT HOUSE 0 256 0 256 280 0 4.5 1152 1,262 57 43 719 542 0.0007 0.0003 CRYSTAL CITY 0 347 0 347 380 0 4.5 1561.5 1,710 57 43 975 735 0.0010 0.0004 DEANWOOD 0 194 0 194 212 0 4.5 873 956 57 43 545 411 0.0005 0.0002 

DUN LORING 10% 10 1220 136 1355 1336 148 4.5 6097.5 6,678 57 43 3,806 2,871 0.0036 0.0017 DUPONT CIRCLE 0 165 0 165 181 0 4.5 742.5 813 57 43 463 350 0.0005 0.0002 EASTERN MKT 0 178 0 178 195 0 4.5 801 877 57 43 500 377 0.0005 0.0002 

EAST FALLS CH 0 442 0 442 484 0 4.5 1989 2,178 57 43 1,242 937 0.0012 0.0005 

EIS 0 352 0 352 385 0 4.5 1584 1,735 57 43 989 746 0.0010 0.0004 FARRAGUT NORTH 0 102 0 102 112 0 4.5 459 503 57 43 287 216 0.0003 0.0001 FARRAGUT WEST 0 221 0 221 242 0 4.5 994.5 1,089 57 43 621 468 0.0006 0.0003 FEDERAL CENTER 0 75 0 75 82 0 4.5 337.5 370 57 43 211 159 0.0002 0.0001 

FEDERAL TRI 0 54 0 54 59 0 4.5 243 266 57 43 152 114 0.0001 0.0001 FOGGY 0 102 0 102 112 0 4.5 459 503 57 43 287 216 0.0003 0.0001 FORT TROTTEN 0 445 0 445 487 0 4.5 2002.5 2,193 57 43 1,250 943 0.0012 0.0005 

FRH.HEIGHTS 0 679 0 679 744 0 4.5 3055.5 3,346 57 43 1,907 1,439 0.0019 0.0008 

GALLERY PLACE 0 124 0 124 136 0 4.5 558 611 57 43 348 263 0.0003 0.0002 GROSVENOR 0 716 0 716 784 0 4.5 3222 3,529 57 43 2,011 1,517 0.0020 0.0009 HUNT NORTH 40% 40 1873 1249 3122 2051 1368 7.5 23415 25,643 57 43 14,616 11,026 0.0069 0.0064 

JUD SQUARE 0 110 0 110 120 0 4.5 495 542 57 43 309 233 0.0003 0.0001 KING ST 0 30 0 30 33 0 4.5 135 148 57 43 84 64 0.0001 0.0000 

0 00 0

LANDOVER 25% 25 1410 470 1880 1544 515 7.5 14100 15,442 57 43 8,802 6,640 0.0046 0.0038 

L'ENFANT PLAZA 0 296 0 296 324 0 4.5 1332 1,459 57 43 831 627 0.0008 0.0004 

MCPHERSON SQ 0 52 0 52 57 0 4.5 234 256 57 43 146 110 0.0001 0.0001 

MEDICAL CENTER 0 14 0 14 15 0 4.5 63 69 57 43 39 30 0.0000 0.0000 

METRO CENTER 0 177 0 177 194 0 4.5 796.5 872 57 43 497 375 0.0005 0.0002 

MINNES 0 353 0 353 387 0 4.5 1588.5 1,740 57 43 992 748 0.0010 0.0004 

NAT AIR 0 87 0 87 95 0 4.5 391.5 429 57 43 244 184 0.0002 0.0001 NEW CARROL 50% 50 1049 1049 2097 1148 1148 7.5 15727.5 17,224 57 43 9,818 7,406 0.0044 0.0043 

PRNTAGON 0 561 0 561 614 0 4.5 2524.5 2,765 57 43 1,576 1,189 0.0016 0.0007 PENTAGON CITY 0 381 0 381 417 0 4.5 1714.5 1,878 57 43 1,070 807 0.0011 0.0005 

POTOMAC AVE 0 533 0 533 584 0 4.5 2398.5 2,627 57 43 1,497 1,129 0.0015 0.0007 

ROCKVILLE 0 667 0 667 730 0 4.5 3001.5 3,287 57 43 1,874 1,413 0.0019 0.0008 ROSSLYN 0 356 0 356 390 0 4.5 1602 1,754 57 43 1,000 754 0.0010 0.0004 

SHADY GROVE 10% 10 3903 434 4337 4275 475 7.5 32527.5 35,622 57 43 20,305 15,318 0.0114 0.0089 

SILVER SPRING 0 44 0 44 48 0 4.5 198 217 57 43 124 93 0.0001 0.0001 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

2008 VOC AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT 

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

(8-HOUR OZONE AREA)

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Appendix E1 - Page Number:132
EXHIBIT 2

E M I S S I O N S 

2008 2008 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.10 1.10 1.1500 0.1983 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

SMITH MALL 0 120 0 120 131 0 4.5 540 591 57 43 337 254 0.0003 0.0001 STADIUM ARM 0 976 0 976 1069 0 4.5 4392 4,810 57 43 2,742 2,068 0.0027 0.0012 

TAKOMA PK 0 146 0 146 160 0 4.5 657 720 57 43 410 309 0.0004 0.0002 

TENLEYTON 0 17 0 17 19 0 4.5 76.5 84 57 43 48 36 0.0000 0.0000 

TWINBROOK 0 1136 0 1136 1244 0 4.5 5112 5,598 57 43 3,191 2,407 0.0032 0.0014 

UNION STAT 0 378 0 378 414 0 4.5 1701 1,863 57 43 1,062 801 0.0010 0.0005 

VAN NESS 0 343 0 343 376 0 4.5 1543.5 1,690 57 43 964 727 0.0010 0.0004 VIENNA 25% 25 2798 933 3731 3064 1021 7.5 27982.5 30,645 57 43 17,468 13,177 0.0091 0.0076 

VA SQUARE 0 642 0 642 703 0 4.5 2889 3,164 57 43 1,803 1,360 0.0018 0.0008 

WEST FALLS CHURCH 0 2183 0 2183 2391 0 4.5 9823.5 10,758 57 43 6,132 4,626 0.0061 0.0027 WHITE FLINT 0 1633 0 1633 1788 0 4.5 7348.5 8,048 57 43 4,587 3,460 0.0045 0.0020 WOODLEY 0 68 0 68 74 0 4.5 306 335 57 43 191 144 0.0002 0.0001 RHODE ISLAND 30% 30 266 114 380 291 125 7.5 2850 3,121 57 43 1,779 1,342 0.0009 0.0008 

0 0

BUS & CAR POOL LOTS 0 0

0 0

CARTER BARRON 0 798 0 798 874 0 4.5 3591 3,933 57 43 2,242 1,691 0.0022 0.0010 

PG PLAZA 0 47 0 47 51 0 4.5 211.5 232 57 43 132 100 0.0001 0.0001 

PENN MAR SHOPP. 0 100 0 100 110 0 4.5 450 493 57 43 281 212 0.0003 0.0001 

CAP PLAZA 0 100 0 100 110 0 4.5 450 493 57 43 281 212 0.0003 0.0001 

EASTOVER 0 100 0 100 110 0 4.5 450 493 57 43 281 212 0.0003 0.0001 FOUR MILE RUN 0 28 0 28 31 0 4.5 126 138 57 43 79 59 0.0001 0.0000 

SPRINGFIELD MALL 0 580 0 580 635 0 4.5 2610 2,858 57 43 1,629 1,229 0.0016 0.0007 

SPRINGFIELD METH C 0 48 0 48 53 0 4.5 216 237 57 43 135 102 0.0001 0.0001 

FRED ARMORY 0 33 0 33 36 0 7.5 247.5 271 57 43 154 117 0.0001 0.0001 

MYERSVILLE 0 65 0 65 71 0 7.5 487.5 534 57 43 304 230 0.0002 0.0001 

ROSEMONT 0 45 0 45 49 0 7.5 337.5 370 57 43 211 159 0.0001 0.0001 

URBANA 0 193 0 193 211 0 7.5 1447.5 1,585 57 43 904 682 0.0005 0.0004 

JEFFERSON 0 40 0 40 44 0 7.5 300 329 57 43 187 141 0.0001 0.0001 

NORBECK RD 0 248 0 248 272 0 7.5 1860 2,037 57 43 1,161 876 0.0007 0.0005 

MONTROSE RD 0 650 0 650 712 0 7.5 4875 5,339 57 43 3,043 2,296 0.0018 0.0013 

BRIGG CHENNY 50% 50 215 215 430 235 235 7.5 3225 3,532 57 43 2,013 1,519 0.0009 0.0009 COMUS ROAD 0 30 0 30 33 0 7.5 225 246 57 43 140 106 0.0001 0.0001 

LAKEFOREST MALL 0 300 0 300 329 0 7.5 2250 2,464 57 43 1,405 1,060 0.0008 0.0006 

BURTONSVILLE 0 500 0 500 548 0 7.5 3750 4,107 57 43 2,341 1,766 0.0014 0.0010 FORCEY MEM. 0 200 0 200 219 0 7.5 1500 1,643 57 43 936 706 0.0006 0.0004 

TECH ROAD 0 155 0 155 170 0 7.5 1162.5 1,273 57 43 726 547 0.0004 0.0003 BELTWAY 0 265 0 265 290 0 7.5 1987.5 2,177 57 43 1,241 936 0.0007 0.0005 LAUREL VAN DUSEN 0 62 0 62 68 0 7.5 465 509 57 43 290 219 0.0002 0.0001 

ACCOKEEK 0 450 0 450 493 0 7.5 3375 3,696 57 43 2,107 1,589 0.0012 0.0009 ABC DRIVE IN 0 100 0 100 110 0 7.5 750 821 57 43 468 353 0.0003 0.0002 

BOWIE 20% 20 526 131 657 576 144 7.5 4927.5 5,396 57 43 3,076 2,320 0.0016 0.0013 

CLINTON 50% 50 212 212 424 232 232 7.5 3180 3,483 57 43 1,985 1,497 0.0009 0.0009 OXON HILL 20% 20 519 130 649 569 142 7.5 4867.5 5,331 57 43 3,038 2,292 0.0016 0.0013 EQUESTRIAN CENTER 50 150 150 300 164 164 7.5 2250 2,464 57 43 1,405 1,060 0.0006 0.0006 BOWIE MARKET PLACE 0 50 0 50 55 0 7.5 375 411 57 43 234 177 0.0001 0.0001 

FT.WASHINGTON 0 412 0 412 451 0 7.5 3090 3,384 57 43 1,929 1,455 0.0011 0.0008 

MONTPELIER REC PAR 0 70 0 70 77 0 7.5 525 575 57 43 328 247 0.0002 0.0001 

RESTON 0 1547 0 1547 1694 0 7.5 11602.5 12,706 57 43 7,243 5,464 0.0043 0.0032 

GREENBRIAR 0 55 0 55 60 0 7.5 412.5 452 57 43 257 194 0.0002 0.0001 

FAIR OAKS 0 150 0 150 164 0 7.5 1125 1,232 57 43 702 530 0.0004 0.0003 

ROLLING VALLEY 0 628 0 628 688 0 7.5 4710 5,158 57 43 2,940 2,218 0.0017 0.0013 

SPRINGFIELD PLAZA 0 230 0 230 252 0 7.5 1725 1,889 57 43 1,077 812 0.0006 0.0005 

FAIRLANES BOWL 0 35 0 35 38 0 7.5 262.5 287 57 43 164 124 0.0001 0.0001 

NOTTOWAY PARK 0 14 0 14 15 0 7.5 105 115 57 43 66 49 0.0000 0.0000 

HORNER RD 0 2397 0 2397 2625 0 7.5 17977.5 19,688 57 43 11,222 8,466 0.0067 0.0049 

LAKE RIDGE 0 555 0 555 608 0 7.5 4162.5 4,559 57 43 2,598 1,960 0.0015 0.0011 MINNIEVILLE RD 40% 40 336 224 560 368 245 7.5 4200 4,600 57 43 2,622 1,978 0.0012 0.0011 GORDON BLVD 0 156 0 156 171 0 7.5 1170 1,281 57 43 730 551 0.0004 0.0003 

HILLENDALE 0 248 0 248 272 0 7.5 1860 2,037 57 43 1,161 876 0.0007 0.0005 POTOMAC MILLS 0 946 0 946 1036 0 7.5 7095 7,770 57 43 4,429 3,341 0.0026 0.0019 

0 00 0

PARK-AND-RIDE LOTS - MARYLAND 0 0

CALVERT COUNTY 0 0Dunkirk 25 32 11 42 34 11 7.5 315 345 57 43 197 148 0.0001 0.0001 Huntingtown 25 26 9 35 29 10 7.5 262.5 287 57 43 164 124 0.0001 0.0001 

Lord Calvert Bowling Alle 25 83 28 110 90 30 7.5 825 903 57 43 515 389 0.0003 0.0002 

Lusby 25 23 8 30 25 8 7.5 225 246 57 43 140 106 0.0001 0.0001 North Beach VFD 25 53 18 70 57 19 7.5 525 575 57 43 328 247 0.0002 0.0001 Prince Frederick 25 53 18 70 57 19 7.5 525 575 57 43 328 247 0.0002 0.0001 St. Leonard 25 38 13 50 41 14 7.5 375 411 57 43 234 177 0.0001 0.0001 

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Appendix E1 - Page Number:133
EXHIBIT 2

E M I S S I O N S 

2008 2008 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.10 1.10 1.1500 0.1983 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

Sunderland 25 80 27 106 87 29 7.5 795 871 57 43 496 374 0.0003 0.0002 PARK-AND-RIDE LOTS - MARYLAND 0 0

CHARLES COUNTY 0 0301 Park & Ride 25 287 96 383 315 105 7.5 2872.5 3,146 57 43 1,793 1,353 0.0009 0.0008 

Charles County Governm 25 26 9 35 29 10 7.5 262.5 287 57 43 164 124 0.0001 0.0001 

Food Lion Shopping Cen 25 38 13 50 41 14 7.5 375 411 57 43 234 177 0.0001 0.0001 La Plata Armory 25 15 5 20 16 5 7.5 150 164 57 43 94 71 0.0000 0.0000 Laurel Springs Regional 25 38 13 50 41 14 7.5 375 411 57 43 234 177 0.0001 0.0001 

Life Wesleyan Church 25 38 13 50 41 14 7.5 375 411 57 43 234 177 0.0001 0.0001 

Mattawoman-Beantown 25 435 145 580 476 159 7.5 4350 4,764 57 43 2,715 2,048 0.0014 0.0012 

Smallwood Village 25 75 25 100 82 27 7.5 750 821 57 43 468 353 0.0002 0.0002 

St. Charles Towne 25 263 88 350 287 96 7.5 2625 2,875 57 43 1,639 1,236 0.0009 0.0007 

PARK-AND-RIDE LOTS 25 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 

FREDERICK COUNTY 25 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Frederick (north) 25 123 41 164 135 45 7.5 1230 1,347 57 43 768 579 0.0004 0.0003 

Frederick (south) 25 173 58 230 189 63 7.5 1725 1,889 57 43 1,077 812 0.0006 0.0005 Monacacy Marcst 25 600 200 800 657 219 7.5 6000 6,571 57 43 3,745 2,825 0.0019 0.0016 

PARK-AND-RIDE LOTS - MARYLAND 0 0

MONTGOMERY COUNTY 0 0Colesville 0 190 0 190 208 0 7.5 1425 1,561 57 43 890 671 0.0005 0.0004 

Damascus 50 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Gaithersburg 50 259 259 517 283 283 7.5 3877.5 4,246 57 43 2,420 1,826 0.0011 0.0011 

Gaithersburg 50 175 175 350 192 192 7.5 2625 2,875 57 43 1,639 1,236 0.0007 0.0007 Germantown Town 50 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Greencastle 50 75 75 150 82 82 7.5 1125 1,232 57 43 702 530 0.0003 0.0003 

Milestone Shopping 50 88 88 175 96 96 7.5 1312.5 1,437 57 43 819 618 0.0004 0.0004 PARK-AND-RIDE LOTS - MAYLAND 0 0

PRINCE GEORGE'S COUNTY 0 0Hampton Mall 0 100 0 100 110 0 4.5 450 493 57 43 281 212 0.0003 0.0001 

Laurel (south) 25 513 171 684 562 187 7.5 5130 5,618 57 43 3,202 2,416 0.0017 0.0014 

PARK-AND-RIDE LOTS - VIRGIN 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 ARLINGTON COUNTY 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Ballston Public Parking G 25 375 125 500 411 137 7.5 3750 4,107 57 43 2,341 1,766 0.0012 0.0010 Washington-Lee 50 178 178 356 195 195 7.5 2670 2,924 57 43 1,667 1,257 0.0007 0.0007 PARK-AND-RIDE LOTS - VIRGINIA 0 0

FAIRFAX COUNTY 0 0

American Legion 50 50 50 100 55 55 7.5 750 821 57 43 468 353 0.0002 0.0002 

Canterbury Woods Pk 50 17 17 34 19 19 7.5 255 279 57 43 159 120 0.0001 0.0001 

Centreville 50 185 185 370 203 203 7.5 2775 3,039 57 43 1,732 1,307 0.0008 0.0008 

Centreville United Metho 50 74 74 147 80 80 7.5 1102.5 1,207 57 43 688 519 0.0003 0.0003 

Fairfax County Governm 50 85 85 170 93 93 7.5 1275 1,396 57 43 796 600 0.0004 0.0003 Greenbriar Park 50 28 28 55 30 30 7.5 412.5 452 57 43 257 194 0.0001 0.0001 Herndon-Monroe 50 873 873 1,745 956 956 7.5 13087.5 14,333 57 43 8,170 6,163 0.0036 0.0036 

Michael's 50 100 100 200 110 110 7.5 1500 1,643 57 43 936 706 0.0004 0.0004 

Parkwood Baptist 50 9 9 18 10 10 7.5 135 148 57 43 84 64 0.0000 0.0000 

South Run District Pk 50 170 170 340 186 186 7.5 2550 2,793 57 43 1,592 1,201 0.0007 0.0007 

St Paul Chung Catholic C 50 50 50 100 55 55 7.5 750 821 57 43 468 353 0.0002 0.0002 

Stringfellow Rd 50 181 181 361 198 198 7.5 2707.5 2,965 57 43 1,690 1,275 0.0008 0.0007 

Sully Station 50 70 70 140 77 77 7.5 1050 1,150 57 43 655 494 0.0003 0.0003 

Sydenstricker Rd 50 84 84 167 91 91 7.5 1252.5 1,372 57 43 782 590 0.0003 0.0003 Wakefield Chapel Pk 50 25 25 50 27 27 7.5 375 411 57 43 234 177 0.0001 0.0001 

PARK-AND-RIDE LOTS - VIRGINIA 0 0

LOUDOUN COUNTY 0 0

Ashburn Farm 50 10 10 20 11 11 7.5 150 164 57 43 94 71 0.0000 0.0000 Ashburn Village 50 20 20 40 22 22 7.5 300 329 57 43 187 141 0.0001 0.0001 

Cascades 50 28 28 55 30 30 7.5 412.5 452 57 43 257 194 0.0001 0.0001 Dulles North Transit 50 375 375 750 411 411 7.5 5625 6,160 57 43 3,511 2,649 0.0016 0.0015 

Hamilton 50 25 25 50 27 27 7.5 375 411 57 43 234 177 0.0001 0.0001 Innovation Avenue 50 38 38 75 41 41 7.5 562.5 616 57 43 351 265 0.0002 0.0002 Leesburg 50 25 25 50 27 27 7.5 375 411 57 43 234 177 0.0001 0.0001 

Leesburg Kohls 50 600 600 1200 657 657 7.5 9000 9,856 57 43 5,618 4,238 0.0025 0.0025 

Purcellville 50 18 18 35 19 19 7.5 262.5 287 57 43 164 124 0.0001 0.0001 Sterling Park SC 50 23 23 45 25 25 7.5 337.5 370 57 43 211 159 0.0001 0.0001 

Sterling Shaw Rd 50 24 24 48 26 26 7.5 360 394 57 43 225 170 0.0001 0.0001 PARK-AND-RIDE LOTS - VIRGINIA 0 0

PRINCE WILLIAM COUNTY 0 0Brittany 50 48 48 95 52 52 7.5 712.5 780 57 43 445 336 0.0002 0.0002 

Dale City 50 294 294 587 321 321 7.5 4402.5 4,821 57 43 2,748 2,073 0.0012 0.0012 

Harbor Drive 50 100 100 200 110 110 7.5 1500 1,643 57 43 936 706 0.0004 0.0004 

Lindendale 50 108 108 216 118 118 7.5 1620 1,774 57 43 1,011 763 0.0004 0.0004 Montclair 50 25 25 50 27 27 7.5 375 411 57 43 234 177 0.0001 0.0001 PRTC Transit Center 50 93 93 185 101 101 7.5 1387.5 1,520 57 43 866 653 0.0004 0.0004 

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Appendix E1 - Page Number:134
EXHIBIT 2

E M I S S I O N S 

2008 2008 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.10 1.10 1.1500 0.1983 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

Tackett's Mill 50 85 85 169 93 93 7.5 1267.5 1,388 57 43 791 597 0.0004 0.0003 

Triangle 50 15 15 29 16 16 7.5 217.5 238 57 43 136 102 0.0001 0.0001 

I-95 / Rt 123 50 282 282 563 308 308 7.5 4222.5 4,624 57 43 2,636 1,988 0.0012 0.0012 

US 1 / VA 234 50 137 137 274 150 150 7.5 2055 2,251 57 43 1,283 968 0.0006 0.0006 

MARC TRAIN COMMUTER LOTS 0 0College Park 25 431 144 574 471 157 7.5 4305 4,715 57 43 2,687 2,027 0.0014 0.0012 

Frederick 0 0 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Greenbelt 60 1346 2018 3364 1474 2210 7.5 25230 27,630 57 43 15,749 11,881 0.0065 0.0069 

Harpers Ferry 98 0 98 107 0 7.5 735 805 57 43 459 346 0.0003 0.0002 

Muirkirk 60 260 390 650 285 427 7.5 4875 5,339 57 43 3,043 2,296 0.0013 0.0013 

Seabrook 0 264 0 264 289 0 4.5 1188 1,301 57 43 742 559 0.0007 0.0003 

Silver Spring 0 0 0 0 0 0 4.5 0 0 57 43 0 0 0.0000 0.0000 

Union Station 0 781 0 781 855 0 7.5 5857.5 6,415 57 43 3,656 2,758 0.0022 0.0016 

VIRGINIA RAILWAY EXPRESS COMMUTER LOTS 0 0

Backlick Road 50 110 110 220 120 120 7.5 1650 1,807 57 43 1,030 777 0.0005 0.0005 

Broad Run 50 198 198 396 217 217 7.5 2970 3,253 57 43 1,854 1,399 0.0008 0.0008 

Burke Center 50 275 275 550 301 301 7.5 4125 4,517 57 43 2,575 1,943 0.0011 0.0011 Franconia/Springfield (op 50 1900 1900 3800 2081 2081 7.5 28500 31,212 57 43 17,791 13,421 0.0079 0.0078 

Lorton 50 100 100 200 110 110 7.5 1500 1,643 57 43 936 706 0.0004 0.0004 

Manassas 50 187 187 374 205 205 7.5 2805 3,072 57 43 1,751 1,321 0.0008 0.0008 

Manassas Park 50 150 150 300 164 164 7.5 2250 2,464 57 43 1,405 1,060 0.0006 0.0006 Quantico 50 109 109 217 119 119 7.5 1627.5 1,782 57 43 1,016 766 0.0005 0.0004 

Rippon 50 150 150 300 164 164 7.5 2250 2,464 57 43 1,405 1,060 0.0006 0.0006 

Rolling Road 50 185 185 370 203 203 7.5 2775 3,039 57 43 1,732 1,307 0.0008 0.0008 Woodbridge 50 294 294 588 322 322 7.5 4410 4,830 57 43 2,753 2,077 0.0012 0.0012 METRORAIL PARKING LOTS 0 0

Anacostia 25 861 287 1148 943 314 7.5 8610 9,429 57 43 5,375 4,055 0.0028 0.0023 

Branch Avenue 50 1611 1611 3222 1764 1764 7.5 24165 26,464 57 43 15,085 11,380 0.0067 0.0066 

Capitol Heights 50 194 194 387 212 212 7.5 2902.5 3,179 57 43 1,812 1,367 0.0008 0.0008 

College Park 25 465 155 620 509 170 7.5 4650 5,092 57 43 2,903 2,190 0.0015 0.0013 Congress Heights 0 66 0 66 72 0 4.5 297 325 57 43 185 140 0.0002 0.0001 

Deanwood 0 194 0 194 212 0 7.5 1455 1,593 57 43 908 685 0.0005 0.0004 

East Falls Church 50 221 221 442 242 242 7.5 3315 3,630 57 43 2,069 1,561 0.0009 0.0009 

Forest Glen 50 329 329 658 360 360 7.5 4935 5,405 57 43 3,081 2,324 0.0014 0.0013 Franconia - Springfield 50 1987 1987 3973 2175 2175 4.5 17878.5 19,579 57 43 11,160 8,419 0.0083 0.0049 Glenmont 50 925 925 1850 1013 1013 4.5 8325 9,117 57 43 5,197 3,920 0.0039 0.0023 Greenbelt 50 1783 1783 3565 1952 1952 7.5 26737.5 29,281 57 43 16,690 12,591 0.0074 0.0073 

Naylor Road 50 216 216 431 236 236 7.5 3232.5 3,540 57 43 2,018 1,522 0.0009 0.0009 

Prince George's Plaza 25 927 309 1236 1015 338 7.5 9270 10,152 57 43 5,787 4,365 0.0030 0.0025 Southern Avenue 50 1090 1090 2180 1194 1194 4.5 9810 10,743 57 43 6,124 4,620 0.0045 0.0027 Suitland 50 1033 1033 2065 1131 1131 4.5 9292.5 10,177 57 43 5,801 4,376 0.0043 0.0025 Van Dorn Street 50 204 204 407 223 223 4.5 1831.5 2,006 57 43 1,143 862 0.0008 0.0005 

West Hyattsville 25 453 151 604 496 165 7.5 4530 4,961 57 43 2,828 2,133 0.0015 0.0012 

Wheaton 25 759 253 1012 831 277 7.5 7590 8,312 57 43 4,738 3,574 0.0025 0.0021 

78629 29681 108,310 86110 32505 711714 779,428 0.2595 0.1942 

Bold figures: New numbers taken from P & R directoryFigures in bracket: Carry forward figures from conformity doc.

Park lot Growth Rate transit trips 2008 973359

transit trips 2000 863783

Annual growth rate 0.015857

Growth factor (2002-2008) 1.095142

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Appendix E1 - Page Number:135
EXHIBIT 3

2008 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAYARTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arter

Growth RateGrowth Rate Rate (gm/mileR) ate (gm

1.10 1.10 0.6291 0.421

COMMUTER RAIL LOTSBRUNSWICK 25% 25 305 102 407 334 111 7.5 3,343 57 43 1,905 1,437 0.0005 0.0

PT OF ROCKS 25% 25 204 68 272 223 74 7.5 2,234 57 43 1,273 961 0.0004 0.0

DICKERSON 0 15 0 15 16 0 7.5 123 57 43 70 53 0.0000 0.0

BARNESVILLE 0 46 0 46 50 0 7.5 378 57 43 215 162 0.0001 0.0

GERMANTOWN 0 386 0 386 423 0 7.5 3,170 57 43 1,807 1,363 0.0006 0.0

MET GROVE 0 352 0 352 385 0 7.5 2,891 57 43 1,648 1,243 0.0005 0.0WAS GROVE 0 15 0 15 16 0 7.5 123 57 43 70 53 0.0000 0.0

GARRETT PARK 0 22 0 22 24 0 7.5 181 57 43 103 78 0.0000 0.0

BOWIE 50% 50 188 188 375 205 205 7.5 3,080 57 43 1,756 1,324 0.0004 0.0

SEABROOK 15% 15 224 40 264 246 43 7.5 2,168 57 43 1,236 932 0.0004 0.0

KENSINGTON 0 45 0 45 49 0 7.5 370 57 43 211 159 0.0001 0.0

LAUREL 30% 30 209 90 299 229 98 7.5 2,456 57 43 1,400 1,056 0.0004 0.0

GAITHESBURG 0 280 0 280 307 0 7.5 2,300 57 43 1,311 989 0.0004 0.0

BERWYN HEIGHTS 0 30 0 30 33 0 4.5 148 57 43 84 64 0.0000 0.0

RIVERDALE 0 65 0 65 71 0 4.5 320 57 43 183 138 0.0001 0.0

0

METRO RAIL LOTS 0

0

ADDISON ROAD 40% 40 791 527 1318 866 577 7.5 10,825 57 43 6,171 4,655 0.0016 0.0

ARCHIVES 0 12 0 12 13 0 4.5 59 57 43 34 25 0.0000 0.0ARLING 0 10 0 10 11 0 4.5 49 57 43 28 21 0.0000 0.0BALLSTON 0 1175 0 1175 1287 0 4.5 5,791 57 43 3,301 2,490 0.0018 0.0BENN.RD 0 520 0 520 569 0 4.5 2,563 57 43 1,461 1,102 0.0008 0.0BETH 0 395 0 395 433 0 4.5 1,947 57 43 1,110 837 0.0006 0.0

BRADD RD 0 10 0 10 11 0 4.5 49 57 43 28 21 0.0000 0.0

BROOKLAND 0 27 0 27 30 0 4.5 133 57 43 76 57 0.0000 0.0

CHEVERLY 0 557 0 557 610 0 4.5 2,745 57 43 1,565 1,180 0.0008 0.0

CLARENDON 0 554 0 554 607 0 4.5 2,730 57 43 1,556 1,174 0.0008 0.0CLEVELAND PK 0 366 0 366 401 0 4.5 1,804 57 43 1,028 776 0.0006 0.0

COURT HOUSE 0 256 0 256 280 0 4.5 1,262 57 43 719 542 0.0004 0.0

CRYSTAL CITY 0 347 0 347 380 0 4.5 1,710 57 43 975 735 0.0005 0.0DEANWOOD 0 194 0 194 212 0 4.5 956 57 43 545 411 0.0003 0.0DUN LORING 10% 10 1220 136 1355 1336 148 4.5 6,678 57 43 3,806 2,871 0.0020 0.0

DUPONT CIRCLE 0 165 0 165 181 0 4.5 813 57 43 463 350 0.0003 0.0EASTERN MKT 0 178 0 178 195 0 4.5 877 57 43 500 377 0.0003 0.0EAST FALLS CH 0 442 0 442 484 0 4.5 2,178 57 43 1,242 937 0.0007 0.0

EIS 0 352 0 352 385 0 4.5 1,735 57 43 989 746 0.0005 0.0

FARRAGUT NORTH 0 102 0 102 112 0 4.5 503 57 43 287 216 0.0002 0.0FARRAGUT WEST 0 221 0 221 242 0 4.5 1,089 57 43 621 468 0.0003 0.0FEDERAL CENTER 0 75 0 75 82 0 4.5 370 57 43 211 159 0.0001 0.0FEDERAL TRI 0 54 0 54 59 0 4.5 266 57 43 152 114 0.0001 0.0FOGGY 0 102 0 102 112 0 4.5 503 57 43 287 216 0.0002 0.0

FORT TROTTEN 0 445 0 445 487 0 4.5 2,193 57 43 1,250 943 0.0007 0.0

FRH.HEIGHTS 0 679 0 679 744 0 4.5 3,346 57 43 1,907 1,439 0.0010 0.0

GALLERY PLACE 0 124 0 124 136 0 4.5 611 57 43 348 263 0.0002 0.0GROSVENOR 0 716 0 716 784 0 4.5 3,529 57 43 2,011 1,517 0.0011 0.0HUNT NORTH 40% 40 1873 1249 3122 2051 1368 7.5 25,643 57 43 14,616 11,026 0.0038 0.0JUD SQUARE 0 110 0 110 120 0 4.5 542 57 43 309 233 0.0002 0.0KING ST 0 30 0 30 33 0 4.5 148 57 43 84 64 0.0000 0.0

00

LANDOVER 25% 25 1410 470 1880 1544 515 7.5 15,442 57 43 8,802 6,640 0.0025 0.0

L'ENFANT PLAZA 0 296 0 296 324 0 4.5 1,459 57 43 831 627 0.0004 0.0

MCPHERSON SQ 0 52 0 52 57 0 4.5 256 57 43 146 110 0.0001 0.0MEDICAL CENTER 0 14 0 14 15 0 4.5 69 57 43 39 30 0.0000 0.0

OUTSID

E MSA 

(%)

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

E M I 

COLD START

c62008_DTPVIN_AUTOACCESSNX.xls 2/27/2007 G-8

Appendix E1 - Page Number:136
EXHIBIT 3

2008 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAYARTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arter

Growth RateGrowth Rate Rate (gm/mileR) ate (gm

1.10 1.10 0.6291 0.421

OUTSID

E MSA 

(%)

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

E M I 

COLD START

METRO CENTER 0 177 0 177 194 0 4.5 872 57 43 497 375 0.0003 0.0MINNES 0 353 0 353 387 0 4.5 1,740 57 43 992 748 0.0005 0.0

NAT AIR 0 87 0 87 95 0 4.5 429 57 43 244 184 0.0001 0.0NEW CARROL 50% 50 1049 1049 2097 1148 1148 7.5 17,224 57 43 9,818 7,406 0.0024 0.0

PRNTAGON 0 561 0 561 614 0 4.5 2,765 57 43 1,576 1,189 0.0009 0.0PENTAGON CITY 0 381 0 381 417 0 4.5 1,878 57 43 1,070 807 0.0006 0.0

POTOMAC AVE 0 533 0 533 584 0 4.5 2,627 57 43 1,497 1,129 0.0008 0.0

ROCKVILLE 0 667 0 667 730 0 4.5 3,287 57 43 1,874 1,413 0.0010 0.0ROSSLYN 0 356 0 356 390 0 4.5 1,754 57 43 1,000 754 0.0005 0.0

SHADY GROVE 10% 10 3903 434 4337 4275 475 7.5 35,622 57 43 20,305 15,318 0.0063 0.0

SILVER SPRING 0 44 0 44 48 0 4.5 217 57 43 124 93 0.0001 0.0

SMITH MALL 0 120 0 120 131 0 4.5 591 57 43 337 254 0.0002 0.0

STADIUM ARM 0 976 0 976 1069 0 4.5 4,810 57 43 2,742 2,068 0.0015 0.0

TAKOMA PK 0 146 0 146 160 0 4.5 720 57 43 410 309 0.0002 0.0TENLEYTON 0 17 0 17 19 0 4.5 84 57 43 48 36 0.0000 0.0

TWINBROOK 0 1136 0 1136 1244 0 4.5 5,598 57 43 3,191 2,407 0.0017 0.0

UNION STAT 0 378 0 378 414 0 4.5 1,863 57 43 1,062 801 0.0006 0.0

VAN NESS 0 343 0 343 376 0 4.5 1,690 57 43 964 727 0.0005 0.0

VIENNA 25% 25 2798 933 3731 3064 1021 7.5 30,645 57 43 17,468 13,177 0.0050 0.0

VA SQUARE 0 642 0 642 703 0 4.5 3,164 57 43 1,803 1,360 0.0010 0.0WEST FALLS CHURCH 0 2183 0 2183 2391 0 4.5 10,758 57 43 6,132 4,626 0.0033 0.0WHITE FLINT 0 1633 0 1633 1788 0 4.5 8,048 57 43 4,587 3,460 0.0025 0.0WOODLEY 0 68 0 68 74 0 4.5 335 57 43 191 144 0.0001 0.0RHODE ISLAND 30% 30 266 114 380 291 125 7.5 3,121 57 43 1,779 1,342 0.0005 0.0

0

BUS & CAR POOL LOTS 0

0

CARTER BARRON 0 798 0 798 874 0 4.5 3,933 57 43 2,242 1,691 0.0012 0.0PG PLAZA 0 47 0 47 51 0 4.5 232 57 43 132 100 0.0001 0.0PENN MAR SHOPP. 0 100 0 100 110 0 4.5 493 57 43 281 212 0.0002 0.0CAP PLAZA 0 100 0 100 110 0 4.5 493 57 43 281 212 0.0002 0.0EASTOVER 0 100 0 100 110 0 4.5 493 57 43 281 212 0.0002 0.0FOUR MILE RUN 0 28 0 28 31 0 4.5 138 57 43 79 59 0.0000 0.0

SPRINGFIELD MALL 0 580 0 580 635 0 4.5 2,858 57 43 1,629 1,229 0.0009 0.0

SPRINGFIELD METH CH 0 48 0 48 53 0 4.5 237 57 43 135 102 0.0001 0.0

FRED ARMORY 0 33 0 33 36 0 7.5 271 57 43 154 117 0.0001 0.0

MYERSVILLE 0 65 0 65 71 0 7.5 534 57 43 304 230 0.0001 0.0

ROSEMONT 0 45 0 45 49 0 7.5 370 57 43 211 159 0.0001 0.0

URBANA 0 193 0 193 211 0 7.5 1,585 57 43 904 682 0.0003 0.0

JEFFERSON 0 40 0 40 44 0 7.5 329 57 43 187 141 0.0001 0.0

NORBECK RD 0 248 0 248 272 0 7.5 2,037 57 43 1,161 876 0.0004 0.0

MONTROSE RD 0 650 0 650 712 0 7.5 5,339 57 43 3,043 2,296 0.0010 0.0

BRIGG CHENNY 50% 50 215 215 430 235 235 7.5 3,532 57 43 2,013 1,519 0.0005 0.0COMUS ROAD 0 30 0 30 33 0 7.5 246 57 43 140 106 0.0000 0.0

LAKEFOREST MALL 0 300 0 300 329 0 7.5 2,464 57 43 1,405 1,060 0.0005 0.0

BURTONSVILLE 0 500 0 500 548 0 7.5 4,107 57 43 2,341 1,766 0.0008 0.0FORCEY MEM. 0 200 0 200 219 0 7.5 1,643 57 43 936 706 0.0003 0.0

TECH ROAD 0 155 0 155 170 0 7.5 1,273 57 43 726 547 0.0002 0.0BELTWAY 0 265 0 265 290 0 7.5 2,177 57 43 1,241 936 0.0004 0.0

LAUREL VAN DUSEN 0 62 0 62 68 0 7.5 509 57 43 290 219 0.0001 0.0

ACCOKEEK 0 450 0 450 493 0 7.5 3,696 57 43 2,107 1,589 0.0007 0.0

ABC DRIVE IN 0 100 0 100 110 0 7.5 821 57 43 468 353 0.0002 0.0BOWIE 20% 20 526 131 657 576 144 7.5 5,396 57 43 3,076 2,320 0.0009 0.0CLINTON 50% 50 212 212 424 232 232 7.5 3,483 57 43 1,985 1,497 0.0005 0.0OXON HILL 20% 20 519 130 649 569 142 7.5 5,331 57 43 3,038 2,292 0.0009 0.0EQUESTRIAN CENTER 50 150 150 300 164 164 7.5 2,464 57 43 1,405 1,060 0.0003 0.0BOWIE MARKET PLACE 0 50 0 50 55 0 7.5 411 57 43 234 177 0.0001 0.0

c62008_DTPVIN_AUTOACCESSNX.xls 2/27/2007 G-9

Appendix E1 - Page Number:137
EXHIBIT 3

2008 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAYARTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arter

Growth RateGrowth Rate Rate (gm/mileR) ate (gm

1.10 1.10 0.6291 0.421

OUTSID

E MSA 

(%)

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

E M I 

COLD START

FT.WASHINGTON 0 412 0 412 451 0 7.5 3,384 57 43 1,929 1,455 0.0006 0.0

MONTPELIER REC PARK 0 70 0 70 77 0 7.5 575 57 43 328 247 0.0001 0.0

RESTON 0 1547 0 1547 1694 0 7.5 12,706 57 43 7,243 5,464 0.0023 0.0

GREENBRIAR 0 55 0 55 60 0 7.5 452 57 43 257 194 0.0001 0.0

FAIR OAKS 0 150 0 150 164 0 7.5 1,232 57 43 702 530 0.0002 0.0

ROLLING VALLEY 0 628 0 628 688 0 7.5 5,158 57 43 2,940 2,218 0.0010 0.0

SPRINGFIELD PLAZA 0 230 0 230 252 0 7.5 1,889 57 43 1,077 812 0.0003 0.0

FAIRLANES BOWL 0 35 0 35 38 0 7.5 287 57 43 164 124 0.0001 0.0

NOTTOWAY PARK 0 14 0 14 15 0 7.5 115 57 43 66 49 0.0000 0.0

HORNER RD 0 2397 0 2397 2625 0 7.5 19,688 57 43 11,222 8,466 0.0036 0.0

LAKE RIDGE 0 555 0 555 608 0 7.5 4,559 57 43 2,598 1,960 0.0008 0.0MINNIEVILLE RD 40% 40 336 224 560 368 245 7.5 4,600 57 43 2,622 1,978 0.0007 0.0GORDON BLVD 0 156 0 156 171 0 7.5 1,281 57 43 730 551 0.0002 0.0

HILLENDALE 0 248 0 248 272 0 7.5 2,037 57 43 1,161 876 0.0004 0.0

POTOMAC MILLS 0 946 0 946 1036 0 7.5 7,770 57 43 4,429 3,341 0.0014 0.0

00

PARK-AND-RIDE LOTS - MARYLAND 0

CALVERT COUNTY 0Dunkirk 25 32 11 42 34 11 7.5 345 57 43 197 148 0.0001 0.0Huntingtown 25 26 9 35 29 10 7.5 287 57 43 164 124 0.0000 0.0

Lord Calvert Bowling Alley 25 83 28 110 90 30 7.5 903 57 43 515 389 0.0001 0.0

Lusby 25 23 8 30 25 8 7.5 246 57 43 140 106 0.0000 0.0North Beach VFD 25 53 18 70 57 19 7.5 575 57 43 328 247 0.0001 0.0Prince Frederick 25 53 18 70 57 19 7.5 575 57 43 328 247 0.0001 0.0St. Leonard 25 38 13 50 41 14 7.5 411 57 43 234 177 0.0001 0.0Sunderland 25 80 27 106 87 29 7.5 871 57 43 496 374 0.0001 0.0PARK-AND-RIDE LOTS - MARYLAND 0

CHARLES COUNTY 0301 Park & Ride 25 287 96 383 315 105 7.5 3,146 57 43 1,793 1,353 0.0005 0.0

Charles County Governme 25 26 9 35 29 10 7.5 287 57 43 164 124 0.0000 0.0

Food Lion Shopping Cente 25 38 13 50 41 14 7.5 411 57 43 234 177 0.0001 0.0La Plata Armory 25 15 5 20 16 5 7.5 164 57 43 94 71 0.0000 0.0Laurel Springs Regional P 25 38 13 50 41 14 7.5 411 57 43 234 177 0.0001 0.0Life Wesleyan Church 25 38 13 50 41 14 7.5 411 57 43 234 177 0.0001 0.0

Mattawoman-Beantown R 25 435 145 580 476 159 7.5 4,764 57 43 2,715 2,048 0.0008 0.0

Smallwood Village 25 75 25 100 82 27 7.5 821 57 43 468 353 0.0001 0.0

St. Charles Towne 25 263 88 350 287 96 7.5 2,875 57 43 1,639 1,236 0.0005 0.0

PARK-AND-RIDE LOTS - MARYLAND 0

FREDERICK COUNTY 0Frederick (north) 25 123 41 164 135 45 7.5 1,347 57 43 768 579 0.0002 0.0

Frederick (south) 25 173 58 230 189 63 7.5 1,889 57 43 1,077 812 0.0003 0.0

Monacacy Marcst 25 600 200 800 657 219 7.5 6,571 57 43 3,745 2,825 0.0011 0.0

PARK-AND-RIDE LOTS - MARYLAND 0

MONTGOMERY COUNTY 0Colesville 0 190 0 190 208 0 7.5 1,561 57 43 890 671 0.0003 0.0

Damascus 50 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0Gaithersburg 50 259 259 517 283 283 7.5 4,246 57 43 2,420 1,826 0.0006 0.0

Gaithersburg 50 175 175 350 192 192 7.5 2,875 57 43 1,639 1,236 0.0004 0.0Germantown Town 50 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0Greencastle 50 75 75 150 82 82 7.5 1,232 57 43 702 530 0.0002 0.0

Milestone Shopping 50 88 88 175 96 96 7.5 1,437 57 43 819 618 0.0002 0.0PARK-AND-RIDE LOTS - MAYLAND 0

PRINCE GEORGE'S COUNTY 0Hampton Mall 0 100 0 100 110 0 4.5 493 57 43 281 212 0.0002 0.0

Laurel (south) 25 513 171 684 562 187 7.5 5,618 57 43 3,202 2,416 0.0009 0.0

PARK-AND-RIDE LOTS - VIRGINIA 0 c62008_DTPVIN_AUTOACCESSNX.xls 2/27/2007 G-10

Appendix E1 - Page Number:138
EXHIBIT 3

2008 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAYARTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arter

Growth RateGrowth Rate Rate (gm/mileR) ate (gm

1.10 1.10 0.6291 0.421

OUTSID

E MSA 

(%)

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

E M I 

COLD START

ARLINGTON COUNTY 0

Ballston Public Parking Ga 25 375 125 500 411 137 7.5 4,107 57 43 2,341 1,766 0.0007 0.0

Washington-Lee 50 178 178 356 195 195 7.5 2,924 57 43 1,667 1,257 0.0004 0.0PARK-AND-RIDE LOTS - VIRGINIA 0

FAIRFAX COUNTY 0American Legion 50 50 50 100 55 55 7.5 821 57 43 468 353 0.0001 0.0

Canterbury Woods Pk 50 17 17 34 19 19 7.5 279 57 43 159 120 0.0000 0.0

Centreville 50 185 185 370 203 203 7.5 3,039 57 43 1,732 1,307 0.0004 0.0

Centreville United Method 50 74 74 147 80 80 7.5 1,207 57 43 688 519 0.0002 0.0

Fairfax County Governme 50 85 85 170 93 93 7.5 1,396 57 43 796 600 0.0002 0.0Greenbriar Park 50 28 28 55 30 30 7.5 452 57 43 257 194 0.0001 0.0

Herndon-Monroe 50 873 873 1,745 956 956 7.5 14,333 57 43 8,170 6,163 0.0020 0.0

Michael's 50 100 100 200 110 110 7.5 1,643 57 43 936 706 0.0002 0.0

Parkwood Baptist 50 9 9 18 10 10 7.5 148 57 43 84 64 0.0000 0.0

South Run District Pk 50 170 170 340 186 186 7.5 2,793 57 43 1,592 1,201 0.0004 0.0

St Paul Chung Catholic Ch 50 50 50 100 55 55 7.5 821 57 43 468 353 0.0001 0.0

Stringfellow Rd 50 181 181 361 198 198 7.5 2,965 57 43 1,690 1,275 0.0004 0.0

Sully Station 50 70 70 140 77 77 7.5 1,150 57 43 655 494 0.0002 0.0

Sydenstricker Rd 50 84 84 167 91 91 7.5 1,372 57 43 782 590 0.0002 0.0Wakefield Chapel Pk 50 25 25 50 27 27 7.5 411 57 43 234 177 0.0001 0.0

PARK-AND-RIDE LOTS - VIRGINIA 0

LOUDOUN COUNTY 0Ashburn Farm 50 10 10 20 11 11 7.5 164 57 43 94 71 0.0000 0.0Ashburn Village 50 20 20 40 22 22 7.5 329 57 43 187 141 0.0000 0.0

Cascades 50 28 28 55 30 30 7.5 452 57 43 257 194 0.0001 0.0Dulles North Transit 50 375 375 750 411 411 7.5 6,160 57 43 3,511 2,649 0.0009 0.0

Hamilton 50 25 25 50 27 27 7.5 411 57 43 234 177 0.0001 0.0Innovation Avenue 50 38 38 75 41 41 7.5 616 57 43 351 265 0.0001 0.0

Leesburg 50 25 25 50 27 27 7.5 411 57 43 234 177 0.0001 0.0Leesburg Kohls 50 600 600 1200 657 657 7.5 9,856 57 43 5,618 4,238 0.0014 0.0

Purcellville 50 18 18 35 19 19 7.5 287 57 43 164 124 0.0000 0.0Sterling Park SC 50 23 23 45 25 25 7.5 370 57 43 211 159 0.0001 0.0

Sterling Shaw Rd 50 24 24 48 26 26 7.5 394 57 43 225 170 0.0001 0.0PARK-AND-RIDE LOTS - VIRGINIA 0

PRINCE WILLIAM COUNTY 0Brittany 50 48 48 95 52 52 7.5 780 57 43 445 336 0.0001 0.0

Dale City 50 294 294 587 321 321 7.5 4,821 57 43 2,748 2,073 0.0007 0.0

Harbor Drive 50 100 100 200 110 110 7.5 1,643 57 43 936 706 0.0002 0.0

Lindendale 50 108 108 216 118 118 7.5 1,774 57 43 1,011 763 0.0002 0.0

Montclair 50 25 25 50 27 27 7.5 411 57 43 234 177 0.0001 0.0

PRTC Transit Center 50 93 93 185 101 101 7.5 1,520 57 43 866 653 0.0002 0.0

Tackett's Mill 50 85 85 169 93 93 7.5 1,388 57 43 791 597 0.0002 0.0Triangle 50 15 15 29 16 16 7.5 238 57 43 136 102 0.0000 0.0

I-95 / Rt 123 50 282 282 563 308 308 7.5 4,624 57 43 2,636 1,988 0.0006 0.0

US 1 / VA 234 50 137 137 274 150 150 7.5 2,251 57 43 1,283 968 0.0003 0.0

MARC TRAIN COMMUTER LOTS 0College Park 25 431 144 574 471 157 7.5 4,715 57 43 2,687 2,027 0.0008 0.0

Frederick 0 0 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0

Greenbelt 60 1346 2018 3364 1474 2210 7.5 27,630 57 43 15,749 11,881 0.0036 0.0

Harpers Ferry 98 0 98 107 0 7.5 805 57 43 459 346 0.0001 0.0

Muirkirk 60 260 390 650 285 427 7.5 5,339 57 43 3,043 2,296 0.0007 0.0

Seabrook 0 264 0 264 289 0 4.5 1,301 57 43 742 559 0.0004 0.0

Silver Spring 0 0 0 0 0 0 4.5 0 57 43 0 0 0.0000 0.0

Union Station 0 781 0 781 855 0 7.5 6,415 57 43 3,656 2,758 0.0012 0.0

VIRGINIA RAILWAY EXPRESS COMMUTER LOTS 0

Backlick Road 50 110 110 220 120 120 7.5 1,807 57 43 1,030 777 0.0003 0.0

Broad Run 50 198 198 396 217 217 7.5 3,253 57 43 1,854 1,399 0.0005 0.0

c62008_DTPVIN_AUTOACCESSNX.xls 2/27/2007 G-11

Appendix E1 - Page Number:139
EXHIBIT 3

2008 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAYARTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arter

Growth RateGrowth Rate Rate (gm/mileR) ate (gm

1.10 1.10 0.6291 0.421

OUTSID

E MSA 

(%)

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

E M I 

COLD START

Burke Center 50 275 275 550 301 301 7.5 4,517 57 43 2,575 1,943 0.0006 0.0

Franconia/Springfield (ope 50 1900 1900 3800 2081 2081 7.5 31,212 57 43 17,791 13,421 0.0043 0.0Lorton 50 100 100 200 110 110 7.5 1,643 57 43 936 706 0.0002 0.0

Manassas 50 187 187 374 205 205 7.5 3,072 57 43 1,751 1,321 0.0004 0.0

Manassas Park 50 150 150 300 164 164 7.5 2,464 57 43 1,405 1,060 0.0003 0.0Quantico 50 109 109 217 119 119 7.5 1,782 57 43 1,016 766 0.0002 0.0

Rippon 50 150 150 300 164 164 7.5 2,464 57 43 1,405 1,060 0.0003 0.0

Rolling Road 50 185 185 370 203 203 7.5 3,039 57 43 1,732 1,307 0.0004 0.0Woodbridge 50 294 294 588 322 322 7.5 4,830 57 43 2,753 2,077 0.0007 0.0METRORAIL PARKING LOTS 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0Anacostia 25 861 287 1148 943 314 7.5 9,429 57 43 5,375 4,055 0.0015 0.0Branch Avenue 50 1611 1611 3222 1764 1764 7.5 26,464 57 43 15,085 11,380 0.0037 0.0Capitol Heights 50 194 194 387 212 212 7.5 3,179 57 43 1,812 1,367 0.0004 0.0College Park 25 465 155 620 509 170 7.5 5,092 57 43 2,903 2,190 0.0008 0.0Congress Heights 0 66 0 66 72 0 4.5 325 57 43 185 140 0.0001 0.0

Deanwood 0 194 0 194 212 0 7.5 1,593 57 43 908 685 0.0003 0.0

East Falls Church 50 221 221 442 242 242 7.5 3,630 57 43 2,069 1,561 0.0005 0.0

Forest Glen 50 329 329 658 360 360 7.5 5,405 57 43 3,081 2,324 0.0007 0.0Franconia - Springfield 50 1987 1987 3973 2175 2175 4.5 19,579 57 43 11,160 8,419 0.0045 0.0Glenmont 50 925 925 1850 1013 1013 4.5 9,117 57 43 5,197 3,920 0.0021 0.0Greenbelt 50 1783 1783 3565 1952 1952 7.5 29,281 57 43 16,690 12,591 0.0041 0.0Naylor Road 50 216 216 431 236 236 7.5 3,540 57 43 2,018 1,522 0.0005 0.0Prince George's Plaza 25 927 309 1236 1015 338 7.5 10,152 57 43 5,787 4,365 0.0016 0.0Southern Avenue 50 1090 1090 2180 1194 1194 4.5 10,743 57 43 6,124 4,620 0.0025 0.0Suitland 50 1033 1033 2065 1131 1131 4.5 10,177 57 43 5,801 4,376 0.0024 0.0Van Dorn Street 50 204 204 407 223 223 4.5 2,006 57 43 1,143 862 0.0005 0.0

West Hyattsville 25 453 151 604 496 165 7.5 4,961 57 43 2,828 2,133 0.0008 0.0

Wheaton 25 759 253 1012 831 277 7.5 8,312 57 43 4,738 3,574 0.0013 0.0

108,310 779,428 0.1420 0.4

Bold figures: New numbers taken from P & R directoryFigures in bracket: Carry forward figures from conformity doc

Park lot Growth Rate transit trips 2008 973359

transit trips 2000 863783

Annual growth rate 0.015857

Growth factor (2002-2008) 1.095142

c62008_DTPVIN_AUTOACCESSNX.xls 2/27/2007 G-12

Appendix E1 - Page Number:140
EXHIBIT 4

E M I S S I O N S 

2009 2009 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.12 1.12 1.0579 0.1824 

COMMUTER RAIL LOTSBRUNSWICK 25% 25 305 102 407 341 114 7.5 3052.5 3,406 57 43 1,941 1,465 0.0009 0.0008 

PT OF ROCKS 25% 25 204 68 272 228 76 7.5 2040 2,276 57 43 1,297 979 0.0006 0.0005 

DICKERSON 0 15 0 15 17 0 7.5 112.5 126 57 43 72 54 0.0000 0.0000 

BARNESVILLE 0 46 0 46 51 0 7.5 345 385 57 43 219 166 0.0001 0.0001 

GERMANTOWN 0 386 0 386 431 0 7.5 2895 3,230 57 43 1,841 1,389 0.0010 0.0007 

MET GROVE 0 352 0 352 393 0 7.5 2640 2,946 57 43 1,679 1,267 0.0009 0.0007 WAS GROVE 0 15 0 15 17 0 7.5 112.5 126 57 43 72 54 0.0000 0.0000 

GARRETT PARK 0 22 0 22 25 0 7.5 165 184 57 43 105 79 0.0001 0.0000 

BOWIE 50% 50 188 188 375 209 209 7.5 2812.5 3,138 57 43 1,789 1,349 0.0007 0.0007 

SEABROOK 15% 15 224 40 264 250 44 7.5 1980 2,209 57 43 1,259 950 0.0006 0.0005 

KENSINGTON 0 45 0 45 50 0 7.5 337.5 377 57 43 215 162 0.0001 0.0001 

LAUREL 30% 30 209 90 299 234 100 7.5 2242.5 2,502 57 43 1,426 1,076 0.0007 0.0006 

GAITHESBURG 0 280 0 280 312 0 7.5 2100 2,343 57 43 1,336 1,008 0.0007 0.0005 BERWYN HEIGHTS 0 30 0 30 33 0 4.5 135 151 57 43 86 65 0.0001 0.0000 

RIVERDALE 0 65 0 65 73 0 4.5 292.5 326 57 43 186 140 0.0002 0.0001 

0 0

METRO RAIL LOTS 0 0

ADDISON ROAD 40% 40 791 527 1318 882 588 7.5 9885 11,030 57 43 6,287 4,743 0.0027 0.0025 ARCHIVES 0 12 0 12 13 0 4.5 54 60 57 43 34 26 0.0000 0.0000 ARLING 0 10 0 10 11 0 4.5 45 50 57 43 29 22 0.0000 0.0000 

BALLSTON 0 1175 0 1175 1311 0 4.5 5287.5 5,900 57 43 3,363 2,537 0.0031 0.0014 

BENN.RD 0 520 0 520 580 0 4.5 2340 2,611 57 43 1,488 1,123 0.0014 0.0006 BETH 0 395 0 395 441 0 4.5 1777.5 1,983 57 43 1,131 853 0.0010 0.0005 

BRADD RD 0 10 0 10 11 0 4.5 45 50 57 43 29 22 0.0000 0.0000 

BROOKLAND 0 27 0 27 30 0 4.5 121.5 136 57 43 77 58 0.0001 0.0000 

CHEVERLY 0 557 0 557 622 0 4.5 2506.5 2,797 57 43 1,594 1,203 0.0014 0.0006 

CLARENDON 0 554 0 554 618 0 4.5 2493 2,782 57 43 1,586 1,196 0.0014 0.0006 CLEVELAND PK 0 366 0 366 408 0 4.5 1647 1,838 57 43 1,048 790 0.0010 0.0004 

COURT HOUSE 0 256 0 256 286 0 4.5 1152 1,285 57 43 733 553 0.0007 0.0003 CRYSTAL CITY 0 347 0 347 387 0 4.5 1561.5 1,742 57 43 993 749 0.0009 0.0004 DEANWOOD 0 194 0 194 216 0 4.5 873 974 57 43 555 419 0.0005 0.0002 

DUN LORING 10% 10 1220 136 1355 1361 151 4.5 6097.5 6,804 57 43 3,878 2,926 0.0033 0.0016 DUPONT CIRCLE 0 165 0 165 184 0 4.5 742.5 829 57 43 472 356 0.0004 0.0002 EASTERN MKT 0 178 0 178 199 0 4.5 801 894 57 43 509 384 0.0005 0.0002 

EAST FALLS CH 0 442 0 442 493 0 4.5 1989 2,219 57 43 1,265 954 0.0012 0.0005 

EIS 0 352 0 352 393 0 4.5 1584 1,767 57 43 1,007 760 0.0009 0.0004 FARRAGUT NORTH 0 102 0 102 114 0 4.5 459 512 57 43 292 220 0.0003 0.0001 FARRAGUT WEST 0 221 0 221 247 0 4.5 994.5 1,110 57 43 633 477 0.0006 0.0003 FEDERAL CENTER 0 75 0 75 84 0 4.5 337.5 377 57 43 215 162 0.0002 0.0001 

FEDERAL TRI 0 54 0 54 60 0 4.5 243 271 57 43 155 117 0.0001 0.0001 FOGGY 0 102 0 102 114 0 4.5 459 512 57 43 292 220 0.0003 0.0001 FORT TROTTEN 0 445 0 445 497 0 4.5 2002.5 2,234 57 43 1,274 961 0.0012 0.0005 

FRH.HEIGHTS 0 679 0 679 758 0 4.5 3055.5 3,409 57 43 1,943 1,466 0.0018 0.0008 

GALLERY PLACE 0 124 0 124 138 0 4.5 558 623 57 43 355 268 0.0003 0.0001 GROSVENOR 0 716 0 716 799 0 4.5 3222 3,595 57 43 2,049 1,546 0.0019 0.0008 HUNT NORTH 40% 40 1873 1249 3122 2090 1393 7.5 23415 26,127 57 43 14,893 11,235 0.0065 0.0060 

JUD SQUARE 0 110 0 110 123 0 4.5 495 552 57 43 315 238 0.0003 0.0001 KING ST 0 30 0 30 33 0 4.5 135 151 57 43 86 65 0.0001 0.0000 

0 00 0

LANDOVER 25% 25 1410 470 1880 1573 524 7.5 14100 15,733 57 43 8,968 6,765 0.0043 0.0036 

L'ENFANT PLAZA 0 296 0 296 330 0 4.5 1332 1,486 57 43 847 639 0.0008 0.0003 

MCPHERSON SQ 0 52 0 52 58 0 4.5 234 261 57 43 149 112 0.0001 0.0001 

MEDICAL CENTER 0 14 0 14 16 0 4.5 63 70 57 43 40 30 0.0000 0.0000 

METRO CENTER 0 177 0 177 198 0 4.5 796.5 889 57 43 507 382 0.0005 0.0002 

MINNES 0 353 0 353 394 0 4.5 1588.5 1,773 57 43 1,010 762 0.0009 0.0004 

NAT AIR 0 87 0 87 97 0 4.5 391.5 437 57 43 249 188 0.0002 0.0001 NEW CARROL 50% 50 1049 1049 2097 1170 1170 7.5 15727.5 17,549 57 43 10,003 7,546 0.0041 0.0040 

PRNTAGON 0 561 0 561 626 0 4.5 2524.5 2,817 57 43 1,606 1,211 0.0015 0.0006 PENTAGON CITY 0 381 0 381 425 0 4.5 1714.5 1,913 57 43 1,090 823 0.0010 0.0004 

POTOMAC AVE 0 533 0 533 595 0 4.5 2398.5 2,676 57 43 1,526 1,151 0.0014 0.0006 

ROCKVILLE 0 667 0 667 744 0 4.5 3001.5 3,349 57 43 1,909 1,440 0.0017 0.0008 ROSSLYN 0 356 0 356 397 0 4.5 1602 1,788 57 43 1,019 769 0.0009 0.0004 

SHADY GROVE 10% 10 3903 434 4337 4355 484 7.5 32527.5 36,295 57 43 20,688 15,607 0.0107 0.0083 

SILVER SPRING 0 44 0 44 49 0 4.5 198 221 57 43 126 95 0.0001 0.0001 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

2009 VOC AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

(8-HOUR OZONE AREA)

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Appendix E1 - Page Number:141
EXHIBIT 4

E M I S S I O N S 

2009 2009 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.12 1.12 1.0579 0.1824 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

SMITH MALL 0 120 0 120 134 0 4.5 540 603 57 43 343 259 0.0003 0.0001 STADIUM ARM 0 976 0 976 1089 0 4.5 4392 4,901 57 43 2,793 2,107 0.0025 0.0011 

TAKOMA PK 0 146 0 146 163 0 4.5 657 733 57 43 418 315 0.0004 0.0002 

TENLEYTON 0 17 0 17 19 0 4.5 76.5 85 57 43 49 37 0.0000 0.0000 

TWINBROOK 0 1136 0 1136 1268 0 4.5 5112 5,704 57 43 3,251 2,453 0.0030 0.0013 

UNION STAT 0 378 0 378 422 0 4.5 1701 1,898 57 43 1,082 816 0.0010 0.0004 

VAN NESS 0 343 0 343 383 0 4.5 1543.5 1,722 57 43 982 741 0.0009 0.0004 VIENNA 25% 25 2798 933 3731 3122 1041 7.5 27982.5 31,224 57 43 17,798 13,426 0.0085 0.0072 

VA SQUARE 0 642 0 642 716 0 4.5 2889 3,224 57 43 1,837 1,386 0.0017 0.0007 

WEST FALLS CHURCH 0 2183 0 2183 2436 0 4.5 9823.5 10,961 57 43 6,248 4,713 0.0057 0.0025 WHITE FLINT 0 1633 0 1633 1822 0 4.5 7348.5 8,200 57 43 4,674 3,526 0.0042 0.0019 WOODLEY 0 68 0 68 76 0 4.5 306 341 57 43 195 147 0.0002 0.0001 RHODE ISLAND 30% 30 266 114 380 297 127 7.5 2850 3,180 57 43 1,813 1,367 0.0008 0.0007 

0 0

BUS & CAR POOL LOTS 0 0

0 0

CARTER BARRON 0 798 0 798 890 0 4.5 3591 4,007 57 43 2,284 1,723 0.0021 0.0009 

PG PLAZA 0 47 0 47 52 0 4.5 211.5 236 57 43 135 101 0.0001 0.0001 

PENN MAR SHOPP. 0 100 0 100 112 0 4.5 450 502 57 43 286 216 0.0003 0.0001 

CAP PLAZA 0 100 0 100 112 0 4.5 450 502 57 43 286 216 0.0003 0.0001 

EASTOVER 0 100 0 100 112 0 4.5 450 502 57 43 286 216 0.0003 0.0001 FOUR MILE RUN 0 28 0 28 31 0 4.5 126 141 57 43 80 60 0.0001 0.0000 

SPRINGFIELD MALL 0 580 0 580 647 0 4.5 2610 2,912 57 43 1,660 1,252 0.0015 0.0007 

SPRINGFIELD METH C 0 48 0 48 54 0 4.5 216 241 57 43 137 104 0.0001 0.0001 

FRED ARMORY 0 33 0 33 37 0 7.5 247.5 276 57 43 157 119 0.0001 0.0001 

MYERSVILLE 0 65 0 65 73 0 7.5 487.5 544 57 43 310 234 0.0002 0.0001 

ROSEMONT 0 45 0 45 50 0 7.5 337.5 377 57 43 215 162 0.0001 0.0001 

URBANA 0 193 0 193 215 0 7.5 1447.5 1,615 57 43 921 695 0.0005 0.0004 

JEFFERSON 0 40 0 40 45 0 7.5 300 335 57 43 191 144 0.0001 0.0001 

NORBECK RD 0 248 0 248 277 0 7.5 1860 2,075 57 43 1,183 892 0.0006 0.0005 

MONTROSE RD 0 650 0 650 725 0 7.5 4875 5,440 57 43 3,101 2,339 0.0017 0.0012 

BRIGG CHENNY 50% 50 215 215 430 240 240 7.5 3225 3,599 57 43 2,051 1,547 0.0008 0.0008 COMUS ROAD 0 30 0 30 33 0 7.5 225 251 57 43 143 108 0.0001 0.0001 

LAKEFOREST MALL 0 300 0 300 335 0 7.5 2250 2,511 57 43 1,431 1,080 0.0008 0.0006 

BURTONSVILLE 0 500 0 500 558 0 7.5 3750 4,184 57 43 2,385 1,799 0.0013 0.0010 FORCEY MEM. 0 200 0 200 223 0 7.5 1500 1,674 57 43 954 720 0.0005 0.0004 

TECH ROAD 0 155 0 155 173 0 7.5 1162.5 1,297 57 43 739 558 0.0004 0.0003 BELTWAY 0 265 0 265 296 0 7.5 1987.5 2,218 57 43 1,264 954 0.0007 0.0005 LAUREL VAN DUSEN 0 62 0 62 69 0 7.5 465 519 57 43 296 223 0.0002 0.0001 

ACCOKEEK 0 450 0 450 502 0 7.5 3375 3,766 57 43 2,147 1,619 0.0012 0.0009 ABC DRIVE IN 0 100 0 100 112 0 7.5 750 837 57 43 477 360 0.0003 0.0002 

BOWIE 20% 20 526 131 657 586 147 7.5 4927.5 5,498 57 43 3,134 2,364 0.0015 0.0013 

CLINTON 50% 50 212 212 424 237 237 7.5 3180 3,548 57 43 2,023 1,526 0.0008 0.0008 OXON HILL 20% 20 519 130 649 579 145 7.5 4867.5 5,431 57 43 3,096 2,335 0.0015 0.0012 EQUESTRIAN CENTER 50 150 150 300 167 167 7.5 2250 2,511 57 43 1,431 1,080 0.0006 0.0006 BOWIE MARKET PLACE 0 50 0 50 56 0 7.5 375 418 57 43 239 180 0.0001 0.0001 

FT.WASHINGTON 0 412 0 412 460 0 7.5 3090 3,448 57 43 1,965 1,483 0.0011 0.0008 

MONTPELIER REC PAR 0 70 0 70 78 0 7.5 525 586 57 43 334 252 0.0002 0.0001 

RESTON 0 1547 0 1547 1726 0 7.5 11602.5 12,946 57 43 7,379 5,567 0.0040 0.0030 

GREENBRIAR 0 55 0 55 61 0 7.5 412.5 460 57 43 262 198 0.0001 0.0001 

FAIR OAKS 0 150 0 150 167 0 7.5 1125 1,255 57 43 716 540 0.0004 0.0003 

ROLLING VALLEY 0 628 0 628 701 0 7.5 4710 5,256 57 43 2,996 2,260 0.0016 0.0012 

SPRINGFIELD PLAZA 0 230 0 230 257 0 7.5 1725 1,925 57 43 1,097 828 0.0006 0.0004 

FAIRLANES BOWL 0 35 0 35 39 0 7.5 262.5 293 57 43 167 126 0.0001 0.0001 

NOTTOWAY PARK 0 14 0 14 16 0 7.5 105 117 57 43 67 50 0.0000 0.0000 

HORNER RD 0 2397 0 2397 2675 0 7.5 17977.5 20,060 57 43 11,434 8,626 0.0062 0.0046 

LAKE RIDGE 0 555 0 555 619 0 7.5 4162.5 4,645 57 43 2,647 1,997 0.0014 0.0011 MINNIEVILLE RD 40% 40 336 224 560 375 250 7.5 4200 4,687 57 43 2,671 2,015 0.0012 0.0011 GORDON BLVD 0 156 0 156 174 0 7.5 1170 1,306 57 43 744 561 0.0004 0.0003 

HILLENDALE 0 248 0 248 277 0 7.5 1860 2,075 57 43 1,183 892 0.0006 0.0005 POTOMAC MILLS 0 946 0 946 1056 0 7.5 7095 7,917 57 43 4,513 3,404 0.0025 0.0018 

0 00 0

PARK-AND-RIDE LOTS - MARYLAND 0 0

CALVERT COUNTY 0 0Dunkirk 25 32 11 42 35 12 7.5 315 351 57 43 200 151 0.0001 0.0001 Huntingtown 25 26 9 35 29 10 7.5 262.5 293 57 43 167 126 0.0001 0.0001 

Lord Calvert Bowling Alle 25 83 28 110 92 31 7.5 825 921 57 43 525 396 0.0003 0.0002 

Lusby 25 23 8 30 25 8 7.5 225 251 57 43 143 108 0.0001 0.0001 North Beach VFD 25 53 18 70 59 20 7.5 525 586 57 43 334 252 0.0002 0.0001 Prince Frederick 25 53 18 70 59 20 7.5 525 586 57 43 334 252 0.0002 0.0001 St. Leonard 25 38 13 50 42 14 7.5 375 418 57 43 239 180 0.0001 0.0001 

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Appendix E1 - Page Number:142
EXHIBIT 4

E M I S S I O N S 

2009 2009 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.12 1.12 1.0579 0.1824 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

Sunderland 25 80 27 106 89 30 7.5 795 887 57 43 506 381 0.0002 0.0002 PARK-AND-RIDE LOTS - MARYLAND 0 0

CHARLES COUNTY 0 0301 Park & Ride 25 287 96 383 321 107 7.5 2872.5 3,205 57 43 1,827 1,378 0.0009 0.0007 

Charles County Governm 25 26 9 35 29 10 7.5 262.5 293 57 43 167 126 0.0001 0.0001 

Food Lion Shopping Cen 25 38 13 50 42 14 7.5 375 418 57 43 239 180 0.0001 0.0001 La Plata Armory 25 15 5 20 17 6 7.5 150 167 57 43 95 72 0.0000 0.0000 Laurel Springs Regional 25 38 13 50 42 14 7.5 375 418 57 43 239 180 0.0001 0.0001 

Life Wesleyan Church 25 38 13 50 42 14 7.5 375 418 57 43 239 180 0.0001 0.0001 

Mattawoman-Beantown 25 435 145 580 485 162 7.5 4350 4,854 57 43 2,767 2,087 0.0013 0.0011 

Smallwood Village 25 75 25 100 84 28 7.5 750 837 57 43 477 360 0.0002 0.0002 

St. Charles Towne 25 263 88 350 293 98 7.5 2625 2,929 57 43 1,670 1,259 0.0008 0.0007 

PARK-AND-RIDE LOTS 25 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 

FREDERICK COUNTY 25 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Frederick (north) 25 123 41 164 137 46 7.5 1230 1,372 57 43 782 590 0.0004 0.0003 

Frederick (south) 25 173 58 230 192 64 7.5 1725 1,925 57 43 1,097 828 0.0005 0.0004 Monacacy Marcst 25 600 200 800 670 223 7.5 6000 6,695 57 43 3,816 2,879 0.0018 0.0015 

PARK-AND-RIDE LOTS - MARYLAND 0 0

MONTGOMERY COUNTY 0 0Colesville 0 190 0 190 212 0 7.5 1425 1,590 57 43 906 684 0.0005 0.0004 

Damascus 50 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Gaithersburg 50 259 259 517 288 288 7.5 3877.5 4,327 57 43 2,466 1,860 0.0010 0.0010 

Gaithersburg 50 175 175 350 195 195 7.5 2625 2,929 57 43 1,670 1,259 0.0007 0.0007 Germantown Town 50 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Greencastle 50 75 75 150 84 84 7.5 1125 1,255 57 43 716 540 0.0003 0.0003 

Milestone Shopping 50 88 88 175 98 98 7.5 1312.5 1,465 57 43 835 630 0.0003 0.0003 PARK-AND-RIDE LOTS - MAYLAND 0 0

PRINCE GEORGE'S COUNTY 0 0Hampton Mall 0 100 0 100 112 0 4.5 450 502 57 43 286 216 0.0003 0.0001 

Laurel (south) 25 513 171 684 572 191 7.5 5130 5,724 57 43 3,263 2,461 0.0016 0.0013 

PARK-AND-RIDE LOTS - VIRGIN 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 ARLINGTON COUNTY 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Ballston Public Parking G 25 375 125 500 418 139 7.5 3750 4,184 57 43 2,385 1,799 0.0011 0.0010 Washington-Lee 50 178 178 356 199 199 7.5 2670 2,979 57 43 1,698 1,281 0.0007 0.0007 PARK-AND-RIDE LOTS - VIRGINIA 0 0

FAIRFAX COUNTY 0 0

American Legion 50 50 50 100 56 56 7.5 750 837 57 43 477 360 0.0002 0.0002 

Canterbury Woods Pk 50 17 17 34 19 19 7.5 255 285 57 43 162 122 0.0001 0.0001 

Centreville 50 185 185 370 206 206 7.5 2775 3,096 57 43 1,765 1,331 0.0007 0.0007 

Centreville United Metho 50 74 74 147 82 82 7.5 1102.5 1,230 57 43 701 529 0.0003 0.0003 

Fairfax County Governm 50 85 85 170 95 95 7.5 1275 1,423 57 43 811 612 0.0003 0.0003 Greenbriar Park 50 28 28 55 31 31 7.5 412.5 460 57 43 262 198 0.0001 0.0001 Herndon-Monroe 50 873 873 1,745 974 974 7.5 13087.5 14,603 57 43 8,324 6,280 0.0034 0.0033 

Michael's 50 100 100 200 112 112 7.5 1500 1,674 57 43 954 720 0.0004 0.0004 

Parkwood Baptist 50 9 9 18 10 10 7.5 135 151 57 43 86 65 0.0000 0.0000 

South Run District Pk 50 170 170 340 190 190 7.5 2550 2,845 57 43 1,622 1,224 0.0007 0.0007 

St Paul Chung Catholic C 50 50 50 100 56 56 7.5 750 837 57 43 477 360 0.0002 0.0002 

Stringfellow Rd 50 181 181 361 201 201 7.5 2707.5 3,021 57 43 1,722 1,299 0.0007 0.0007 

Sully Station 50 70 70 140 78 78 7.5 1050 1,172 57 43 668 504 0.0003 0.0003 

Sydenstricker Rd 50 84 84 167 93 93 7.5 1252.5 1,398 57 43 797 601 0.0003 0.0003 Wakefield Chapel Pk 50 25 25 50 28 28 7.5 375 418 57 43 239 180 0.0001 0.0001 

PARK-AND-RIDE LOTS - VIRGINIA 0 0

LOUDOUN COUNTY 0 0

Ashburn Farm 50 10 10 20 11 11 7.5 150 167 57 43 95 72 0.0000 0.0000 Ashburn Village 50 20 20 40 22 22 7.5 300 335 57 43 191 144 0.0001 0.0001 

Cascades 50 28 28 55 31 31 7.5 412.5 460 57 43 262 198 0.0001 0.0001 Dulles North Transit 50 375 375 750 418 418 7.5 5625 6,277 57 43 3,578 2,699 0.0015 0.0014 

Hamilton 50 25 25 50 28 28 7.5 375 418 57 43 239 180 0.0001 0.0001 Innovation Avenue 50 38 38 75 42 42 7.5 562.5 628 57 43 358 270 0.0001 0.0001 Leesburg 50 25 25 50 28 28 7.5 375 418 57 43 239 180 0.0001 0.0001 

Leesburg Kohls 50 600 600 1200 670 670 7.5 9000 10,043 57 43 5,724 4,318 0.0023 0.0023 

Purcellville 50 18 18 35 20 20 7.5 262.5 293 57 43 167 126 0.0001 0.0001 Sterling Park SC 50 23 23 45 25 25 7.5 337.5 377 57 43 215 162 0.0001 0.0001 

Sterling Shaw Rd 50 24 24 48 27 27 7.5 360 402 57 43 229 173 0.0001 0.0001 PARK-AND-RIDE LOTS - VIRGINIA 0 0

PRINCE WILLIAM COUNTY 0 0Brittany 50 48 48 95 53 53 7.5 712.5 795 57 43 453 342 0.0002 0.0002 

Dale City 50 294 294 587 327 327 7.5 4402.5 4,912 57 43 2,800 2,112 0.0011 0.0011 

Harbor Drive 50 100 100 200 112 112 7.5 1500 1,674 57 43 954 720 0.0004 0.0004 

Lindendale 50 108 108 216 121 121 7.5 1620 1,808 57 43 1,030 777 0.0004 0.0004 Montclair 50 25 25 50 28 28 7.5 375 418 57 43 239 180 0.0001 0.0001 PRTC Transit Center 50 93 93 185 103 103 7.5 1387.5 1,548 57 43 882 666 0.0004 0.0004 

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Appendix E1 - Page Number:143
EXHIBIT 4

E M I S S I O N S 

2009 2009 AVERAGE 2002 2008 ARTERIAL FREEWAY ARTERIAL FREEWAY COLD START 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mile) Rate (gm/mile) Ra

1.12 1.12 1.0579 0.1824 

OUTSID

E MSA 

%

2002

OUTSIDE 

MSA

INSIDE 

MSA Total

R

Tackett's Mill 50 85 85 169 94 94 7.5 1267.5 1,414 57 43 806 608 0.0003 0.0003 

Triangle 50 15 15 29 16 16 7.5 217.5 243 57 43 138 104 0.0001 0.0001 

I-95 / Rt 123 50 282 282 563 314 314 7.5 4222.5 4,712 57 43 2,686 2,026 0.0011 0.0011 

US 1 / VA 234 50 137 137 274 153 153 7.5 2055 2,293 57 43 1,307 986 0.0005 0.0005 

MARC TRAIN COMMUTER LOTS 0 0College Park 25 431 144 574 480 160 7.5 4305 4,804 57 43 2,738 2,066 0.0013 0.0011 

Frederick 0 0 0 0 0 0 7.5 0 0 57 43 0 0 0.0000 0.0000 Greenbelt 60 1346 2018 3364 1501 2252 7.5 25230 28,153 57 43 16,047 12,106 0.0061 0.0065 

Harpers Ferry 98 0 98 109 0 7.5 735 820 57 43 467 353 0.0003 0.0002 

Muirkirk 60 260 390 650 290 435 7.5 4875 5,440 57 43 3,101 2,339 0.0012 0.0012 

Seabrook 0 264 0 264 295 0 4.5 1188 1,326 57 43 756 570 0.0007 0.0003 

Silver Spring 0 0 0 0 0 0 4.5 0 0 57 43 0 0 0.0000 0.0000 

Union Station 0 781 0 781 871 0 7.5 5857.5 6,536 57 43 3,726 2,810 0.0020 0.0015 

VIRGINIA RAILWAY EXPRESS COMMUTER LOTS 0 0

Backlick Road 50 110 110 220 123 123 7.5 1650 1,841 57 43 1,049 792 0.0004 0.0004 

Broad Run 50 198 198 396 221 221 7.5 2970 3,314 57 43 1,889 1,425 0.0008 0.0008 

Burke Center 50 275 275 550 307 307 7.5 4125 4,603 57 43 2,624 1,979 0.0011 0.0011 Franconia/Springfield (op 50 1900 1900 3800 2120 2120 7.5 28500 31,801 57 43 18,127 13,675 0.0074 0.0073 

Lorton 50 100 100 200 112 112 7.5 1500 1,674 57 43 954 720 0.0004 0.0004 

Manassas 50 187 187 374 209 209 7.5 2805 3,130 57 43 1,784 1,346 0.0007 0.0007 

Manassas Park 50 150 150 300 167 167 7.5 2250 2,511 57 43 1,431 1,080 0.0006 0.0006 Quantico 50 109 109 217 121 121 7.5 1627.5 1,816 57 43 1,035 781 0.0004 0.0004 

Rippon 50 150 150 300 167 167 7.5 2250 2,511 57 43 1,431 1,080 0.0006 0.0006 

Rolling Road 50 185 185 370 206 206 7.5 2775 3,096 57 43 1,765 1,331 0.0007 0.0007 Woodbridge 50 294 294 588 328 328 7.5 4410 4,921 57 43 2,805 2,116 0.0011 0.0011 METRORAIL PARKING LOTS 0 0

Anacostia 25 861 287 1148 961 320 7.5 8610 9,607 57 43 5,476 4,131 0.0026 0.0022 

Branch Avenue 50 1611 1611 3222 1798 1798 7.5 24165 26,964 57 43 15,370 11,595 0.0063 0.0062 

Capitol Heights 50 194 194 387 216 216 7.5 2902.5 3,239 57 43 1,846 1,393 0.0008 0.0007 

College Park 25 465 155 620 519 173 7.5 4650 5,189 57 43 2,958 2,231 0.0014 0.0012 Congress Heights 0 66 0 66 74 0 4.5 297 331 57 43 189 143 0.0002 0.0001 

Deanwood 0 194 0 194 216 0 7.5 1455 1,624 57 43 925 698 0.0005 0.0004 

East Falls Church 50 221 221 442 247 247 7.5 3315 3,699 57 43 2,108 1,591 0.0009 0.0008 

Forest Glen 50 329 329 658 367 367 7.5 4935 5,507 57 43 3,139 2,368 0.0013 0.0013 Franconia - Springfield 50 1987 1987 3973 2217 2217 4.5 17878.5 19,949 57 43 11,371 8,578 0.0078 0.0046 Glenmont 50 925 925 1850 1032 1032 4.5 8325 9,289 57 43 5,295 3,994 0.0036 0.0021 Greenbelt 50 1783 1783 3565 1989 1989 7.5 26737.5 29,835 57 43 17,006 12,829 0.0070 0.0068 

Naylor Road 50 216 216 431 240 240 7.5 3232.5 3,607 57 43 2,056 1,551 0.0008 0.0008 

Prince George's Plaza 25 927 309 1236 1034 345 7.5 9270 10,344 57 43 5,896 4,448 0.0028 0.0024 Southern Avenue 50 1090 1090 2180 1216 1216 4.5 9810 10,946 57 43 6,239 4,707 0.0043 0.0025 Suitland 50 1033 1033 2065 1152 1152 4.5 9292.5 10,369 57 43 5,910 4,459 0.0040 0.0024 Van Dorn Street 50 204 204 407 227 227 4.5 1831.5 2,044 57 43 1,165 879 0.0008 0.0005 

West Hyattsville 25 453 151 604 505 168 7.5 4530 5,055 57 43 2,881 2,174 0.0014 0.0012 

Wheaton 25 759 253 1012 847 282 7.5 7590 8,469 57 43 4,827 3,642 0.0023 0.0019 

78629 29681 108,310 87737 33119 711714 794,156 0.2432 0.1820 

Bold figures: New numbers taken from P & R directoryFigures in bracket: Carry forward figures from conformity doc.

Park lot Growth Rate transit trips 2009 992427

transit trips 2000 863783

Annual growth rate 0.0165479

Growth factor (2002-2009) 1.1158352

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Appendix E1 - Page Number:144
EXHIBIT 5

2009 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAAYRTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mileR) ate (gm/milRea

1.12 1.12 0.5757 0.3773 

COMMUTER RAIL LOTS

BRUNSWICK 25% 25 305 102 407 341 114 7.5 3,406 57 43 1,941 1,465 0.0005 0.0016 

PT OF ROCKS 25% 25 204 68 272 228 76 7.5 2,276 57 43 1,297 979 0.0003 0.0011 

DICKERSON 0 15 0 15 17 0 7.5 126 57 43 72 54 0.0000 0.0001 

BARNESVILLE 0 46 0 46 51 0 7.5 385 57 43 219 166 0.0001 0.0002 

GERMANTOWN 0 386 0 386 431 0 7.5 3,230 57 43 1,841 1,389 0.0005 0.0015 

MET GROVE 0 352 0 352 393 0 7.5 2,946 57 43 1,679 1,267 0.0005 0.0014 WAS GROVE 0 15 0 15 17 0 7.5 126 57 43 72 54 0.0000 0.0001 

GARRETT PARK 0 22 0 22 25 0 7.5 184 57 43 105 79 0.0000 0.0001 

BOWIE 50% 50 188 188 375 209 209 7.5 3,138 57 43 1,789 1,349 0.0004 0.0015 

SEABROOK 15% 15 224 40 264 250 44 7.5 2,209 57 43 1,259 950 0.0003 0.0010 

KENSINGTON 0 45 0 45 50 0 7.5 377 57 43 215 162 0.0001 0.0002 

LAUREL 30% 30 209 90 299 234 100 7.5 2,502 57 43 1,426 1,076 0.0004 0.0012 

GAITHESBURG 0 280 0 280 312 0 7.5 2,343 57 43 1,336 1,008 0.0004 0.0011 BERWYN HEIGHTS 0 30 0 30 33 0 4.5 151 57 43 86 65 0.0000 0.0001 

RIVERDALE 0 65 0 65 73 0 4.5 326 57 43 186 140 0.0001 0.0002 

0

METRO RAIL LOTS 0

0

ADDISON ROAD 40% 40 791 527 1318 882 588 7.5 11,030 57 43 6,287 4,743 0.0015 0.0052 ARCHIVES 0 12 0 12 13 0 4.5 60 57 43 34 26 0.0000 0.0000 ARLING 0 10 0 10 11 0 4.5 50 57 43 29 22 0.0000 0.0000 

BALLSTON 0 1175 0 1175 1311 0 4.5 5,900 57 43 3,363 2,537 0.0017 0.0028 

BENN.RD 0 520 0 520 580 0 4.5 2,611 57 43 1,488 1,123 0.0007 0.0012 BETH 0 395 0 395 441 0 4.5 1,983 57 43 1,131 853 0.0006 0.0009 

BRADD RD 0 10 0 10 11 0 4.5 50 57 43 29 22 0.0000 0.0000 

BROOKLAND 0 27 0 27 30 0 4.5 136 57 43 77 58 0.0000 0.0001 

CHEVERLY 0 557 0 557 622 0 4.5 2,797 57 43 1,594 1,203 0.0008 0.0013 

CLARENDON 0 554 0 554 618 0 4.5 2,782 57 43 1,586 1,196 0.0008 0.0013 CLEVELAND PK 0 366 0 366 408 0 4.5 1,838 57 43 1,048 790 0.0005 0.0009 

COURT HOUSE 0 256 0 256 286 0 4.5 1,285 57 43 733 553 0.0004 0.0006 

CRYSTAL CITY 0 347 0 347 387 0 4.5 1,742 57 43 993 749 0.0005 0.0008 DEANWOOD 0 194 0 194 216 0 4.5 974 57 43 555 419 0.0003 0.0005 

DUN LORING 10% 10 1220 136 1355 1361 151 4.5 6,804 57 43 3,878 2,926 0.0018 0.0032 

DUPONT CIRCLE 0 165 0 165 184 0 4.5 829 57 43 472 356 0.0002 0.0004 EASTERN MKT 0 178 0 178 199 0 4.5 894 57 43 509 384 0.0003 0.0004 EAST FALLS CH 0 442 0 442 493 0 4.5 2,219 57 43 1,265 954 0.0006 0.0011 

EIS 0 352 0 352 393 0 4.5 1,767 57 43 1,007 760 0.0005 0.0008 FARRAGUT NORTH 0 102 0 102 114 0 4.5 512 57 43 292 220 0.0001 0.0002 FARRAGUT WEST 0 221 0 221 247 0 4.5 1,110 57 43 633 477 0.0003 0.0005 

FEDERAL CENTER 0 75 0 75 84 0 4.5 377 57 43 215 162 0.0001 0.0002 FEDERAL TRI 0 54 0 54 60 0 4.5 271 57 43 155 117 0.0001 0.0001 FOGGY 0 102 0 102 114 0 4.5 512 57 43 292 220 0.0001 0.0002 

FORT TROTTEN 0 445 0 445 497 0 4.5 2,234 57 43 1,274 961 0.0006 0.0011 

FRH.HEIGHTS 0 679 0 679 758 0 4.5 3,409 57 43 1,943 1,466 0.0010 0.0016 

GALLERY PLACE 0 124 0 124 138 0 4.5 623 57 43 355 268 0.0002 0.0003 GROSVENOR 0 716 0 716 799 0 4.5 3,595 57 43 2,049 1,546 0.0010 0.0017 HUNT NORTH 40% 40 1873 1249 3122 2090 1393 7.5 26,127 57 43 14,893 11,235 0.0035 0.0124 

JUD SQUARE 0 110 0 110 123 0 4.5 552 57 43 315 238 0.0002 0.0003 KING ST 0 30 0 30 33 0 4.5 151 57 43 86 65 0.0000 0.0001 

00

LANDOVER 25% 25 1410 470 1880 1573 524 7.5 15,733 57 43 8,968 6,765 0.0023 0.0075 

L'ENFANT PLAZA 0 296 0 296 330 0 4.5 1,486 57 43 847 639 0.0004 0.0007 

MCPHERSON SQ 0 52 0 52 58 0 4.5 261 57 43 149 112 0.0001 0.0001 MEDICAL CENTER 0 14 0 14 16 0 4.5 70 57 43 40 30 0.0000 0.0000 

METRO CENTER 0 177 0 177 198 0 4.5 889 57 43 507 382 0.0003 0.0004 MINNES 0 353 0 353 394 0 4.5 1,773 57 43 1,010 762 0.0005 0.0008 

NAT AIR 0 87 0 87 97 0 4.5 437 57 43 249 188 0.0001 0.0002 NEW CARROL 50% 50 1049 1049 2097 1170 1170 7.5 17,549 57 43 10,003 7,546 0.0022 0.0083 

PRNTAGON 0 561 0 561 626 0 4.5 2,817 57 43 1,606 1,211 0.0008 0.0013 PENTAGON CITY 0 381 0 381 425 0 4.5 1,913 57 43 1,090 823 0.0005 0.0009 

POTOMAC AVE 0 533 0 533 595 0 4.5 2,676 57 43 1,526 1,151 0.0008 0.0013 

OUTSID

E MSA 

(%)

R

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

EMIS

COLD START

c62009_AUTOACCESSNX.xls 2/27/2007 G-17

Appendix E1 - Page Number:145
EXHIBIT 5

2009 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAAYRTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mileR) ate (gm/milRea

1.12 1.12 0.5757 0.3773 

OUTSID

E MSA 

(%)

R

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

EMIS

COLD START

ROCKVILLE 0 667 0 667 744 0 4.5 3,349 57 43 1,909 1,440 0.0009 0.0016 

ROSSLYN 0 356 0 356 397 0 4.5 1,788 57 43 1,019 769 0.0005 0.0008 

SHADY GROVE 10% 10 3903 434 4337 4355 484 7.5 36,295 57 43 20,688 15,607 0.0058 0.0172 

SILVER SPRING 0 44 0 44 49 0 4.5 221 57 43 126 95 0.0001 0.0001 

SMITH MALL 0 120 0 120 134 0 4.5 603 57 43 343 259 0.0002 0.0003 STADIUM ARM 0 976 0 976 1089 0 4.5 4,901 57 43 2,793 2,107 0.0014 0.0023 

TAKOMA PK 0 146 0 146 163 0 4.5 733 57 43 418 315 0.0002 0.0003 TENLEYTON 0 17 0 17 19 0 4.5 85 57 43 49 37 0.0000 0.0000 

TWINBROOK 0 1136 0 1136 1268 0 4.5 5,704 57 43 3,251 2,453 0.0016 0.0027 

UNION STAT 0 378 0 378 422 0 4.5 1,898 57 43 1,082 816 0.0005 0.0009 

VAN NESS 0 343 0 343 383 0 4.5 1,722 57 43 982 741 0.0005 0.0008 

VIENNA 25% 25 2798 933 3731 3122 1041 7.5 31,224 57 43 17,798 13,426 0.0046 0.0148 

VA SQUARE 0 642 0 642 716 0 4.5 3,224 57 43 1,837 1,386 0.0009 0.0015 

WEST FALLS CHURCH 0 2183 0 2183 2436 0 4.5 10,961 57 43 6,248 4,713 0.0031 0.0052 WHITE FLINT 0 1633 0 1633 1822 0 4.5 8,200 57 43 4,674 3,526 0.0023 0.0039 WOODLEY 0 68 0 68 76 0 4.5 341 57 43 195 147 0.0001 0.0002 RHODE ISLAND 30% 30 266 114 380 297 127 7.5 3,180 57 43 1,813 1,367 0.0005 0.0015 

0

BUS & CAR POOL LOTS 0

0

CARTER BARRON 0 798 0 798 890 0 4.5 4,007 57 43 2,284 1,723 0.0011 0.0019 

PG PLAZA 0 47 0 47 52 0 4.5 236 57 43 135 101 0.0001 0.0001 

PENN MAR SHOPP. 0 100 0 100 112 0 4.5 502 57 43 286 216 0.0001 0.0002 

CAP PLAZA 0 100 0 100 112 0 4.5 502 57 43 286 216 0.0001 0.0002 

EASTOVER 0 100 0 100 112 0 4.5 502 57 43 286 216 0.0001 0.0002 

FOUR MILE RUN 0 28 0 28 31 0 4.5 141 57 43 80 60 0.0000 0.0001 

SPRINGFIELD MALL 0 580 0 580 647 0 4.5 2,912 57 43 1,660 1,252 0.0008 0.0014 

SPRINGFIELD METH CH 0 48 0 48 54 0 4.5 241 57 43 137 104 0.0001 0.0001 

FRED ARMORY 0 33 0 33 37 0 7.5 276 57 43 157 119 0.0000 0.0001 MYERSVILLE 0 65 0 65 73 0 7.5 544 57 43 310 234 0.0001 0.0003 

ROSEMONT 0 45 0 45 50 0 7.5 377 57 43 215 162 0.0001 0.0002 

URBANA 0 193 0 193 215 0 7.5 1,615 57 43 921 695 0.0003 0.0008 

JEFFERSON 0 40 0 40 45 0 7.5 335 57 43 191 144 0.0001 0.0002 

NORBECK RD 0 248 0 248 277 0 7.5 2,075 57 43 1,183 892 0.0004 0.0010 

MONTROSE RD 0 650 0 650 725 0 7.5 5,440 57 43 3,101 2,339 0.0009 0.0026 

BRIGG CHENNY 50% 50 215 215 430 240 240 7.5 3,599 57 43 2,051 1,547 0.0005 0.0017 COMUS ROAD 0 30 0 30 33 0 7.5 251 57 43 143 108 0.0000 0.0001 

LAKEFOREST MALL 0 300 0 300 335 0 7.5 2,511 57 43 1,431 1,080 0.0004 0.0012 

BURTONSVILLE 0 500 0 500 558 0 7.5 4,184 57 43 2,385 1,799 0.0007 0.0020 FORCEY MEM. 0 200 0 200 223 0 7.5 1,674 57 43 954 720 0.0003 0.0008 

TECH ROAD 0 155 0 155 173 0 7.5 1,297 57 43 739 558 0.0002 0.0006 BELTWAY 0 265 0 265 296 0 7.5 2,218 57 43 1,264 954 0.0004 0.0011 

LAUREL VAN DUSEN 0 62 0 62 69 0 7.5 519 57 43 296 223 0.0001 0.0002 

ACCOKEEK 0 450 0 450 502 0 7.5 3,766 57 43 2,147 1,619 0.0006 0.0018 ABC DRIVE IN 0 100 0 100 112 0 7.5 837 57 43 477 360 0.0001 0.0004 

BOWIE 20% 20 526 131 657 586 147 7.5 5,498 57 43 3,134 2,364 0.0008 0.0026 

CLINTON 50% 50 212 212 424 237 237 7.5 3,548 57 43 2,023 1,526 0.0005 0.0017 OXON HILL 20% 20 519 130 649 579 145 7.5 5,431 57 43 3,096 2,335 0.0008 0.0026 EQUESTRIAN CENTER 50 150 150 300 167 167 7.5 2,511 57 43 1,431 1,080 0.0003 0.0012 BOWIE MARKET PLACE 0 50 0 50 56 0 7.5 418 57 43 239 180 0.0001 0.0002 

FT.WASHINGTON 0 412 0 412 460 0 7.5 3,448 57 43 1,965 1,483 0.0006 0.0016 

MONTPELIER REC PARK 0 70 0 70 78 0 7.5 586 57 43 334 252 0.0001 0.0003 

RESTON 0 1547 0 1547 1726 0 7.5 12,946 57 43 7,379 5,567 0.0022 0.0061 

GREENBRIAR 0 55 0 55 61 0 7.5 460 57 43 262 198 0.0001 0.0002 

FAIR OAKS 0 150 0 150 167 0 7.5 1,255 57 43 716 540 0.0002 0.0006 

ROLLING VALLEY 0 628 0 628 701 0 7.5 5,256 57 43 2,996 2,260 0.0009 0.0025 

SPRINGFIELD PLAZA 0 230 0 230 257 0 7.5 1,925 57 43 1,097 828 0.0003 0.0009 

c62009_AUTOACCESSNX.xls 2/27/2007 G-18

Appendix E1 - Page Number:146
EXHIBIT 5

2009 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAAYRTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mileR) ate (gm/milRea

1.12 1.12 0.5757 0.3773 

OUTSID

E MSA 

(%)

R

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

EMIS

COLD START

FAIRLANES BOWL 0 35 0 35 39 0 7.5 293 57 43 167 126 0.0000 0.0001 

NOTTOWAY PARK 0 14 0 14 16 0 7.5 117 57 43 67 50 0.0000 0.0001 

HORNER RD 0 2397 0 2397 2675 0 7.5 20,060 57 43 11,434 8,626 0.0034 0.0095 

LAKE RIDGE 0 555 0 555 619 0 7.5 4,645 57 43 2,647 1,997 0.0008 0.0022 MINNIEVILLE RD 40% 40 336 224 560 375 250 7.5 4,687 57 43 2,671 2,015 0.0006 0.0022 GORDON BLVD 0 156 0 156 174 0 7.5 1,306 57 43 744 561 0.0002 0.0006 

HILLENDALE 0 248 0 248 277 0 7.5 2,075 57 43 1,183 892 0.0004 0.0010 

POTOMAC MILLS 0 946 0 946 1056 0 7.5 7,917 57 43 4,513 3,404 0.0013 0.0038 

00

PARK-AND-RIDE LOTS - MARYLAND 0

CALVERT COUNTY 0Dunkirk 25 32 11 42 35 12 7.5 351 57 43 200 151 0.0001 0.0002 

Huntingtown 25 26 9 35 29 10 7.5 293 57 43 167 126 0.0000 0.0001 

Lord Calvert Bowling Alley 25 83 28 110 92 31 7.5 921 57 43 525 396 0.0001 0.0004 

Lusby 25 23 8 30 25 8 7.5 251 57 43 143 108 0.0000 0.0001 North Beach VFD 25 53 18 70 59 20 7.5 586 57 43 334 252 0.0001 0.0003 Prince Frederick 25 53 18 70 59 20 7.5 586 57 43 334 252 0.0001 0.0003 St. Leonard 25 38 13 50 42 14 7.5 418 57 43 239 180 0.0001 0.0002 Sunderland 25 80 27 106 89 30 7.5 887 57 43 506 381 0.0001 0.0004 PARK-AND-RIDE LOTS - MARYLAND 0

CHARLES COUNTY 0301 Park & Ride 25 287 96 383 321 107 7.5 3,205 57 43 1,827 1,378 0.0005 0.0015 

Charles County Governm 25 26 9 35 29 10 7.5 293 57 43 167 126 0.0000 0.0001 

Food Lion Shopping Cent 25 38 13 50 42 14 7.5 418 57 43 239 180 0.0001 0.0002 

La Plata Armory 25 15 5 20 17 6 7.5 167 57 43 95 72 0.0000 0.0001 Laurel Springs Regional P 25 38 13 50 42 14 7.5 418 57 43 239 180 0.0001 0.0002 Life Wesleyan Church 25 38 13 50 42 14 7.5 418 57 43 239 180 0.0001 0.0002 

Mattawoman-Beantown R 25 435 145 580 485 162 7.5 4,854 57 43 2,767 2,087 0.0007 0.0023 

Smallwood Village 25 75 25 100 84 28 7.5 837 57 43 477 360 0.0001 0.0004 

St. Charles Towne 25 263 88 350 293 98 7.5 2,929 57 43 1,670 1,259 0.0004 0.0014 

PARK-AND-RIDE LOTS - MARYLAND 0

FREDERICK COUNTY 0Frederick (north) 25 123 41 164 137 46 7.5 1,372 57 43 782 590 0.0002 0.0007 

Frederick (south) 25 173 58 230 192 64 7.5 1,925 57 43 1,097 828 0.0003 0.0009 

Monacacy Marcst 25 600 200 800 670 223 7.5 6,695 57 43 3,816 2,879 0.0010 0.0032 

PARK-AND-RIDE LOTS - MARYLAND 0

MONTGOMERY COUNTY 0Colesville 0 190 0 190 212 0 7.5 1,590 57 43 906 684 0.0003 0.0008 

Damascus 50 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0000 Gaithersburg 50 259 259 517 288 288 7.5 4,327 57 43 2,466 1,860 0.0005 0.0021 

Gaithersburg 50 175 175 350 195 195 7.5 2,929 57 43 1,670 1,259 0.0004 0.0014 Germantown Town 50 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0000 Greencastle 50 75 75 150 84 84 7.5 1,255 57 43 716 540 0.0002 0.0006 

Milestone Shopping 50 88 88 175 98 98 7.5 1,465 57 43 835 630 0.0002 0.0007 PARK-AND-RIDE LOTS - MAYLAND 0

PRINCE GEORGE'S COUNTY 0Hampton Mall 0 100 0 100 112 0 4.5 502 57 43 286 216 0.0001 0.0002 

Laurel (south) 25 513 171 684 572 191 7.5 5,724 57 43 3,263 2,461 0.0008 0.0027 

PARK-AND-RIDE LOTS - VIRGINIA 0

ARLINGTON COUNTY 0Ballston Public Parking G 25 375 125 500 418 139 7.5 4,184 57 43 2,385 1,799 0.0006 0.0020 

Washington-Lee 50 178 178 356 199 199 7.5 2,979 57 43 1,698 1,281 0.0004 0.0014 PARK-AND-RIDE LOTS - VIRGINIA 0

FAIRFAX COUNTY 0

American Legion 50 50 50 100 56 56 7.5 837 57 43 477 360 0.0001 0.0004 

Canterbury Woods Pk 50 17 17 34 19 19 7.5 285 57 43 162 122 0.0000 0.0001 

Centreville 50 185 185 370 206 206 7.5 3,096 57 43 1,765 1,331 0.0004 0.0015 

Centreville United Method 50 74 74 147 82 82 7.5 1,230 57 43 701 529 0.0002 0.0006 

Fairfax County Governme 50 85 85 170 95 95 7.5 1,423 57 43 811 612 0.0002 0.0007 Greenbriar Park 50 28 28 55 31 31 7.5 460 57 43 262 198 0.0001 0.0002 Herndon-Monroe 50 873 873 1,745 974 974 7.5 14,603 57 43 8,324 6,280 0.0019 0.0069 

Michael's 50 100 100 200 112 112 7.5 1,674 57 43 954 720 0.0002 0.0008 

c62009_AUTOACCESSNX.xls 2/27/2007 Parkwood Baptist 50 9 9 18 10 10 7.5 151 57 43 86 65 0.0000 0.0001 

G-19

Appendix E1 - Page Number:147
EXHIBIT 5

2009 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAAYRTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mileR) ate (gm/milRea

1.12 1.12 0.5757 0.3773 

OUTSID

E MSA 

(%)

R

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

EMIS

COLD START

South Run District Pk 50 170 170 340 190 190 7.5 2,845 57 43 1,622 1,224 0.0004 0.0013 

St Paul Chung Catholic C 50 50 50 100 56 56 7.5 837 57 43 477 360 0.0001 0.0004 

Stringfellow Rd 50 181 181 361 201 201 7.5 3,021 57 43 1,722 1,299 0.0004 0.0014 

Sully Station 50 70 70 140 78 78 7.5 1,172 57 43 668 504 0.0001 0.0006 

Sydenstricker Rd 50 84 84 167 93 93 7.5 1,398 57 43 797 601 0.0002 0.0007 Wakefield Chapel Pk 50 25 25 50 28 28 7.5 418 57 43 239 180 0.0001 0.0002 

PARK-AND-RIDE LOTS - VIRGINIA 0

LOUDOUN COUNTY 0

Ashburn Farm 50 10 10 20 11 11 7.5 167 57 43 95 72 0.0000 0.0001 Ashburn Village 50 20 20 40 22 22 7.5 335 57 43 191 144 0.0000 0.0002 

Cascades 50 28 28 55 31 31 7.5 460 57 43 262 198 0.0001 0.0002 Dulles North Transit 50 375 375 750 418 418 7.5 6,277 57 43 3,578 2,699 0.0008 0.0030 

Hamilton 50 25 25 50 28 28 7.5 418 57 43 239 180 0.0001 0.0002 Innovation Avenue 50 38 38 75 42 42 7.5 628 57 43 358 270 0.0001 0.0003 

Leesburg 50 25 25 50 28 28 7.5 418 57 43 239 180 0.0001 0.0002 Leesburg Kohls 50 600 600 1200 670 670 7.5 10,043 57 43 5,724 4,318 0.0013 0.0048 

Purcellville 50 18 18 35 20 20 7.5 293 57 43 167 126 0.0000 0.0001 Sterling Park SC 50 23 23 45 25 25 7.5 377 57 43 215 162 0.0000 0.0002 

Sterling Shaw Rd 50 24 24 48 27 27 7.5 402 57 43 229 173 0.0001 0.0002 PARK-AND-RIDE LOTS - VIRGINIA 0

PRINCE WILLIAM COUNTY 0Brittany 50 48 48 95 53 53 7.5 795 57 43 453 342 0.0001 0.0004 

Dale City 50 294 294 587 327 327 7.5 4,912 57 43 2,800 2,112 0.0006 0.0023 

Harbor Drive 50 100 100 200 112 112 7.5 1,674 57 43 954 720 0.0002 0.0008 

Lindendale 50 108 108 216 121 121 7.5 1,808 57 43 1,030 777 0.0002 0.0009 

Montclair 50 25 25 50 28 28 7.5 418 57 43 239 180 0.0001 0.0002 PRTC Transit Center 50 93 93 185 103 103 7.5 1,548 57 43 882 666 0.0002 0.0007 

Tackett's Mill 50 85 85 169 94 94 7.5 1,414 57 43 806 608 0.0002 0.0007 Triangle 50 15 15 29 16 16 7.5 243 57 43 138 104 0.0000 0.0001 

I-95 / Rt 123 50 282 282 563 314 314 7.5 4,712 57 43 2,686 2,026 0.0006 0.0022 

US 1 / VA 234 50 137 137 274 153 153 7.5 2,293 57 43 1,307 986 0.0003 0.0011 

MARC TRAIN COMMUTER LOTS 0

College Park 25 431 144 574 480 160 7.5 4,804 57 43 2,738 2,066 0.0007 0.0023 

Frederick 0 0 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0000 

Greenbelt 60 1346 2018 3364 1501 2252 7.5 28,153 57 43 16,047 12,106 0.0033 0.0133 

Harpers Ferry 98 0 98 109 0 7.5 820 57 43 467 353 0.0001 0.0004 

Muirkirk 60 260 390 650 290 435 7.5 5,440 57 43 3,101 2,339 0.0006 0.0026 

Seabrook 0 264 0 264 295 0 4.5 1,326 57 43 756 570 0.0004 0.0006 

Silver Spring 0 0 0 0 0 0 4.5 0 57 43 0 0 0.0000 0.0000 

Union Station 0 781 0 781 871 0 7.5 6,536 57 43 3,726 2,810 0.0011 0.0031 

VIRGINIA RAILWAY EXPRESS COMMUTER LOTS 0

Backlick Road 50 110 110 220 123 123 7.5 1,841 57 43 1,049 792 0.0002 0.0009 

Broad Run 50 198 198 396 221 221 7.5 3,314 57 43 1,889 1,425 0.0004 0.0016 

Burke Center 50 275 275 550 307 307 7.5 4,603 57 43 2,624 1,979 0.0006 0.0022 Franconia/Springfield (ope 50 1900 1900 3800 2120 2120 7.5 31,801 57 43 18,127 13,675 0.0040 0.0151 

Lorton 50 100 100 200 112 112 7.5 1,674 57 43 954 720 0.0002 0.0008 

Manassas 50 187 187 374 209 209 7.5 3,130 57 43 1,784 1,346 0.0004 0.0015 

Manassas Park 50 150 150 300 167 167 7.5 2,511 57 43 1,431 1,080 0.0003 0.0012 Quantico 50 109 109 217 121 121 7.5 1,816 57 43 1,035 781 0.0002 0.0009 

Rippon 50 150 150 300 167 167 7.5 2,511 57 43 1,431 1,080 0.0003 0.0012 

Rolling Road 50 185 185 370 206 206 7.5 3,096 57 43 1,765 1,331 0.0004 0.0015 Woodbridge 50 294 294 588 328 328 7.5 4,921 57 43 2,805 2,116 0.0006 0.0023 METRORAIL PARKING LOTS 0 0 0 0 7.5 0 57 43 0 0 0.0000 0.0000 

Anacostia 25 861 287 1148 961 320 7.5 9,607 57 43 5,476 4,131 0.0014 0.0046 

c62009_AUTOACCESSNX.xls 2/27/2007 G-20

Appendix E1 - Page Number:148
EXHIBIT 5

2009 NOx AIR QUALITY EMISSIONS INVENTORY

AUTO ACCESS TO TRANSIT

(8-HOUR OZONE AREA)

FY2006-2011 TIP AND 2005 CLRP AIR QUALITY CONFORMITY

2008 AVERAGE ARTERIAFLREEWAAYRTERIALFREEWAY 

LOCATION INSIDE OUTSIDE TRIP LENGTH VMT VMT VMT Arterial 

Growth RateGrowth Rate Rate (gm/mileR) ate (gm/milRea

1.12 1.12 0.5757 0.3773 

OUTSID

E MSA 

(%)

R

%

2002

OUTSID

E MSA

INSIDE 

MSA Total

EMIS

COLD START

Branch Avenue 50 1611 1611 3222 1798 1798 7.5 26,964 57 43 15,370 11,595 0.0034 0.0128 

Capitol Heights 50 194 194 387 216 216 7.5 3,239 57 43 1,846 1,393 0.0004 0.0015 

College Park 25 465 155 620 519 173 7.5 5,189 57 43 2,958 2,231 0.0008 0.0025 Congress Heights 0 66 0 66 74 0 4.5 331 57 43 189 143 0.0001 0.0002 

Deanwood 0 194 0 194 216 0 7.5 1,624 57 43 925 698 0.0003 0.0008 

East Falls Church 50 221 221 442 247 247 7.5 3,699 57 43 2,108 1,591 0.0005 0.0018 

Forest Glen 50 329 329 658 367 367 7.5 5,507 57 43 3,139 2,368 0.0007 0.0026 Franconia - Springfield 50 1987 1987 3973 2217 2217 4.5 19,949 57 43 11,371 8,578 0.0042 0.0095 Glenmont 50 925 925 1850 1032 1032 4.5 9,289 57 43 5,295 3,994 0.0020 0.0044 Greenbelt 50 1783 1783 3565 1989 1989 7.5 29,835 57 43 17,006 12,829 0.0038 0.0141 

Naylor Road 50 216 216 431 240 240 7.5 3,607 57 43 2,056 1,551 0.0005 0.0017 

Prince George's Plaza 25 927 309 1236 1034 345 7.5 10,344 57 43 5,896 4,448 0.0015 0.0049 Southern Avenue 50 1090 1090 2180 1216 1216 4.5 10,946 57 43 6,239 4,707 0.0023 0.0052 Suitland 50 1033 1033 2065 1152 1152 4.5 10,369 57 43 5,910 4,459 0.0022 0.0049 Van Dorn Street 50 204 204 407 227 227 4.5 2,044 57 43 1,165 879 0.0004 0.0010 

West Hyattsville 25 453 151 604 505 168 7.5 5,055 57 43 2,881 2,174 0.0007 0.0024 

Wheaton 25 759 253 1012 847 282 7.5 8,469 57 43 4,827 3,642 0.0013 0.0040 

108,310 794,156 0.1324 0.3765 

Bold figures: New numbers taken from P & R directoryFigures in bracket: Carry forward figures from conformity doc.

Park lot Growth Rate transit trips 2009 992427

transit trips 2000 863783

Annual growth rate 0.0165479

Growth factor (2002-2009) 1.1158352

c62009_AUTOACCESSNX.xls 2/27/2007 G-21

Appendix E1 - Page Number:149