APPENDIX 2

MOBILE6.2 Input Parameter Summary
Appendix X-2 1

Table 2-1: General Parameters and Options

Input parameter Summer Weekday

Output Pollutants VOC, NOX

Analysis Day Avg Summer Weekday 

(Jun, Jul, Aug)

Traffic Data

PENNDOT Roadway 

Management System (RMS) 

Source Data Year

2002

HPMS VMT Adjustment Year 2002

PENNDOT Seasonal Factor 

Data 2002

PENNDOT Hourly Pattern Data 2001

PENNDOT RMS Truck 

Percentages Used for 

Vehicle Mixes

2002

MOBILE6 Defaults Used to 

Disaggregate Auto and 

Truck Vehicle Mix Categories

2002

Traffic Volume Forecasted 

Growth 

2010,2015,2020,2025 forecasted 

using PENNDOT study growth 

factors

M6 Parameters

Emissions

Calendar Year

Varies by Analysis Year

(2010, 2015, 2020, 2025)

Evaluation Month 7 (July)

Season 1 - Summer

CAAA Standards Enabled

Tier2 Standards Enabled

North-East NLEV Included

California LEVII Included

2007 HDDV Rule Enabled

Refueling Emissions Not Included

Registration Data 02 Local Data + 

National Truck Defaults

Diesel Sales Fractions National Defaults

VMT by Hour 02 Local Data 

(varies by cty, fc)

VMT by Facility Each facility run as 

separate scenario

VMT by Speed Calculated by PPSUITE

Min/Max Temps 66.7/ 94.0

Absolute Humidity 57.2

Fuel Program 1

RVP 8.7
Appendix X-2 2

Table 2-2: Inspection/Maintenance Program Input Parameters

(Not Applied to 2002 Analysis Year)

MOBILE6 I/M

Test Types: Philadelphia I/M Program

I/M Program OBD I/M ASM 5015 

Final

EVAP OBD 

& GC GC

Program Start Year 2004 1997 2004 1997

I/M Stringency 20 20

I/M Model Years

First Year 1996 1981 1996 1975

Last Year 2050 1995 2050 1995

I/M Waiver Rates

Pre-81 Model Years 3.0% 3.0% 3.0% 3.0%

Post-81 Model Years 3.0% 3.0% 3.0% 3.0%

I/M Compliance 96.0% 96.0% 96.0% 96.0%

Program Type:

Test Only (T/O)

Test & Repair computerized 

(TRC)

Test & Repair Manual (TRM)

TRC TRC TRC TRC

Inspection Frequency

Annual

Biennial

Annual Annual Annual Annual

I/M Vehicles

1 = I/M Benefits not calculated

2 = I/M Benefits calculated

LDGV 2 2 2 2

LDGT1 2 2 2 2

LDGT2 2 2 2 2

LDGT3 2 2 2 2

LDGT4 2 2 2 2

HDGV2B 1 1 1 1

HDGV3 1 1 1 1

HDGV4 1 1 1 1

HDGV5 1 1 1 1

HDGV6 1 1 1 1

HDGV7 1 1 1 1

HDGV8A 1 1 1 1

HDGV8B 1 1 1 1

GAS BUS 1 1 1 1

I/M Effectiveness 1.00

I/M TTC Credits Included

New Model Year Exemption First Model Year

I/M Exemptions <5000 mi

 *Philadelphia Counties: Bucks, Chester, Delaware, Montgomery, Philadelphia
Appendix X-2 3

Table 2-2 (Continued): Inspection/Maintenance Program Input Parameters

(Not Applied to 2002 Analysis Year)

MOBILE6 I/M

Test Types: Pittsburgh I/M Program

I/M Program OBD I/M 2500/Idle

EVAP OBD 

& GC GC Idle

Program Start Year 2004 1997 2004 1997 1984

I/M Stringency 20 20 20

I/M Model Years

First Year 1996 1981 1996 1975 1975

Last Year 2050 1995 2050 1995 1980

I/M Waiver Rates

Pre-81 Model Years 3.0% 3.0% 3.0% 3.0% 3.0%

Post-81 Model Years 3.0% 3.0% 3.0% 3.0% 3.0%

I/M Compliance 96.0% 96.0% 96.0% 96.0% 96.0%

Program Type:

Test Only (T/O)

Test & Repair computerized 

(TRC)

Test & Repair Manual (TRM)

TRC TRC TRC TRC TRC

Inspection Frequency

Annual

Biennial

Annual Annual Annual Annual Annual

I/M Vehicles

1 = I/M Benefits not calculated

2 = I/M Benefits calculated

LDGV 2 2 2 2 2

LDGT1 2 2 2 2 2

LDGT2 2 2 2 2 2

LDGT3 2 2 2 2 2

LDGT4 2 2 2 2 2

HDGV2B 1 1 1 1 1

HDGV3 1 1 1 1 1

HDGV4 1 1 1 1 1

HDGV5 1 1 1 1 1

HDGV6 1 1 1 1 1

HDGV7 1 1 1 1 1

HDGV8A 1 1 1 1 1

HDGV8B 1 1 1 1 1

GAS BUS 1 1 1 1 1

I/M Effectiveness 1.00

I/M TTC Credits Included

New Model Year Exemption First Model Year

I/M Exemptions <5000 mi

*Pittsburgh Counties: Allegheny, Beaver, Washington, Westmoreland
Appendix X-2 4

Table 2-2 (Continued): Inspection/Maintenance Program Input Parameters

(Not Applied to 2002 Analysis Year)

MOBILE6 I/M

Test Types: South Central I/M Program Northern I/M Program

I/M Program OBD I/M OBD & GC GC GC

Program Start Year 2004 2004 2004 1997

I/M Stringency 20

I/M Model Years

First Year 1996 1996 1975 1975

Last Year 2050 2050 1995 2050

I/M Waiver Rates

Pre-81 Model Years 3.0% 3.0% 3.0% 3.0%

Post-81 Model Years 3.0% 3.0% 3.0% 3.0%

I/M Compliance 96.0% 96.0% 96.0% 96.0%

Program Type:

Test Only (T/O)

Test & Repair computerized 

(TRC)

Test & Repair Manual (TRM)

TRC TRC TRC TRC

Inspection Frequency

Annual

Biennial

Annual Annual Annual Annual

I/M Vehicles

1 = I/M Benefits not calculated

2 = I/M Benefits calculated

LDGV 2 2 2 2

LDGT1 2 2 2 2

LDGT2 2 2 2 2

LDGT3 2 2 2 2

LDGT4 2 2 2 2

HDGV2B 1 1 1 1

HDGV3 1 1 1 1

HDGV4 1 1 1 1

HDGV5 1 1 1 1

HDGV6 1 1 1 1

HDGV7 1 1 1 1

HDGV8A 1 1 1 1

HDGV8B 1 1 1 1

GAS BUS 1 1 1 1

I/M Effectiveness 1.00 1.00 1.00 1.00

I/M TTC Credits Included Included Included Included

New Model Year Exemption First Model Year First Model Year First Model Year First Model Year

I/M Exemptions <5000 mi <5000 mi <5000 mi <5000 mi

*South Central Counties: Berks, Cumberland, Dauphin, Lancaster, Lebanon, Lehigh, Northampton, York

*Northern Counties: Blair, Cambria, Centre, Erie, Lackawanna, Luzerne, Lycoming, Mercer
Appendix X-2 5

Table 2-3: Anti-Tampering Program Input Parameters

(Not Applied to 2002 Analysis Year)

ATP Parameters Philadelphia / 

Pittsburgh Counties

South Central 

Counties

Northern / Other42 

Counties

Program Start Year 97 2004 2004

I/M Model Years

First Year 75 75 75

Last Year 50 95 50

I/M Vehicles

1 = I/M Benefits not calculated

2 = I/M Benefits calculated

LDGV 2 2 2

LDGT1 2 2 2

LDGT2 2 2 2

LDGT3 2 2 2

LDGT4 2 2 2

HDGV2B 1 1 1

HDGV3 1 1 1

HDGV4 1 1 1

HDGV5 1 1 1

HDGV6 1 1 1

HDGV7 1 1 1

HDGV8A 1 1 1

HDGV8B 1 1 1

GAS BUS 1 1 1

Inspection Frequency:

Annual

Biennial

Annual Annual Annual

I/M Compliance 96.0% 96.0% 96.0%

Inspections Performed:

1 = Not Performed

2 = Performed

Air Pump System 2 2 2

Catalyst Removal 2 2 2

Fuel Inlet Restrictor 2 2 2

Tailpipe Lead Deposit Test 1 1 1

EGR System 2 2 2

Evaporative Control System 2 2 2

PCV System 2 2 2

Gas Cap 2 2 2

*Other42 Counties: Adams, Armstrong, Bedford, Bradford, Butler, Cameron, Carbon, Clarion, 

Clearfield, Clinton, Columbia, Crawford, Elk, Fayette, Forest, Franklin, Fulton, Greene, Huntingdon, 

Indiana, Jefferson, Juniata, Lawrence, McKean, Mifflin, Monroe, Montour, Northumberland, Perry, 

Pike, Potter, Schuylkill, Snyder, Somerset, Sullivan, Susquehanna, Tioga, Union, Venango, Warren, 

Wayne, Wyoming