## Stage II VRS Incremental Benefit Analysis

EP A’ s Guidance on Removing Stage II Gasoline Vapor Control Programs from State Implementation Plans and Assessing Comparable Measures (henceforth will be referred to as the Guidance on Removing Stage II ) provides for a method of calculating the incremental emissions benefit of ke eping Stage II VRS versus the phase in of OR VR. The overall Stage II - OR VR increment is an area-wide emission control gain over the ozone season from Stage II installations at GDFs as OR VR is phased in. Calculation of this increment can also indicate the potential loss of emission reductions from removing Stage II. This equation (entitled Stage II VRS Incr emental Benefit Equation) used in the calculation is: (1) incrementi 

### = Emissions Benefit of Stage II

– Emissions Increase Due to Incompatibility , or incrementi 

### = (Q SII

### )(1 - Q OR VRi

### )(NiuSII

### )

– (Q SIIva

### )(CF i

### ), where : incrementi 

### = the fractional reduction of VOCs from refueling in the nonattainment area during ozone season for a given end of calendar year. i = year ending Q SII 

### = fraction of gasoline throughput covered by Stage II vapor recovery systems Q ORVRi 

### = f raction of annual gallons of highway motor gasoline dispensed to ORVR- equipped vehicles  iuSII 

### = The in-use Stage II control efficiency (e.g., if removes 100 percent of VOCs each time would use 1.0) Q SIIva 

### = fraction of gasoline throughput covered by traditional vacuum assist Stage II VRS CF i 

### = Compatibility factor term which is determined from studies looking at excessive emissions produced by the incompatibility between vacuum assist Stage II VRS and ORVR which depends in part on GDF designs and varies by year . The increment for the Atlanta 13 - county area has been calculated for the years 2012 through 2017. These calculations assume immediate deactivation of the requirement for all areas . The methodology and tables used to determine the values of the terms in the equation as they apply to Atlanta 13 county area can be found below. With these Atlanta- specific values included, the equation is further reduced. (2) incrementi 

### = (0.9)(1 - Q ORVRi

### )(0.62)

– (0.95)(0.765)(VMT ORVRi

### ), where: Q ORVRi 

### = fraction of annual gallons of highway motor gasoline dispensed to ORVR- equipped vehicles for a given year VMT ORVRi 

### = fraction of vehicle miles traveled that are linked to ORVR equipped vehicles for a given year .

### The fraction of vehicle miles traveled was directly provided by the EPA’s Guidance Document, Appendix

A, Table A- 1 (USEPA, “Guidance on Removing Stage II Gasoline Vapor Control Programs from State Implementation Plans and Assessing Comparable Measures,” Office of Air Quality Planning and Standards, EPA-457/B - 12 - 001, August 7, 2012). For more details, consult EPA Memorandum “Updated data for ORVR Widespread Use Assessment” February 29, 2012, in docket (number EPA -HQ - OAR2010 - 1076). The final calculations of the increment were made and listed in Table A- 1 after locating in the Guidance on Removing Stage II the values to plug into the reduced equation for Q ORVRi 

### and VMT ORVRi 

### for years ending in 2012 -2017.

### Table A**- 1** 

**Incremental Benefit of Maintaining Stage II VRS in Atlanta with ORVR Phase -** **In** Year Ending Q ORVR 

### VMT ORVR 

### (fraction) Incremental Benefit Incremental Benefit (fraction) (fraction) (fractional reduction) (tons/day) 2012 0.777 0.800 0.0659 2.26 2013 0.810 0.834 0.0454 1.56 2014 0.840 0.863 0.0266 0.92 2015 0.865 0.888 0.0108 0.37 2016 0.886 0.909 - 0.00245 - 0.085 2017 0.903 0.925 - 0.0131 - 0.450 As shown in Table A- 1 above , the increment declines from 2.26 tons/day in 2012 to zero during 2016 before demonstrating a detrimental effect of - 0.450 tons/day by 2017 . This indicates a disbenefit over time. Details regarding the unit conversion of increment from fractional reduction to tons/day reduction including the need for this conversi on are discussed on pages A- 6 to A - 8 . Table A -2 provides an overview of the minimal initial impact that Stage II removal would have on Atlanta’s ability to attain the ozone NAAQS standards . Note that fractions are predominately used in Table A- 1 and in the description of the equation variables in this Appendix while the tables in the Guidance on Removing Stage II use percentages . Therefore, each value in those table s in the guidance was divided by 1 00 before proceeding further with the calculations of the incremental benefit .

### Table A**- 2** 

**Impact of Stage II Removal on Ability of Atlanta to Attain Ozone NAAQS Standards***
Year ending 2006 VOC MVEB 2008 Ozone

Maint. Plan Baseline VOC emissions VOC On-Road

emissions inventory with Stage II VRS ** VOC

Stage II increment VOC emissions

inventory w/o Stage II VRS ** VOC Stage II

increment as % of emissions inventory (tons/day) (tons/day) (tons/day) (tons/day) (tons/day) (%) 2008 171.83 165.53 165.53 N/A N/A N/A 2012 171.83 165.53 127.33 2.26 N/A N/A 2013 171.83 165.53 117.78 1.56 N/A N/A 2014 171.83 165.53 108.23 0.92 109.15 0.87 2015 171.83 165.53 98.68 0.37 99.05 0.38 2016 171.83 165.53 89.13 - 0.085 89.05 - 0.095 * All emissions inventory, baseline and budget values in this chart refer solely to on -road mobile source emissions ** Emissions inventory values in this table for 2008 is based on the 2008 Atlanta Ozone Maintenance Plan baseline and projecte d inventory for 2016 were taken from Volume II: Plan 2040 Conformity Determination Report (CDR) ’s transportation conformity demonstration dated July 2011 . Inventory numbers for intermediate years were calculated by assuming a linear trend in VOC emissions from 2008 - 2016. 

### As shown in Table A-2, Stage II VRS increment never exceeds 1 % of the VOC emissions inventory before decreasing to zero from 201 4 -2016. It is observed that VOC on-road mobile source emissions inventory for cases of Stage II VRS control system removal from 2014 -2016 is well below the 2006 motor vehicle budget (MVEB) from the Atlanta Early Progress SIP and 2008 baseline year emissions levels listed in the Atlanta 8 -Hour Ozone Maintenance Plan. 

### Atlanta**- Based Values to be Used In the**  **Stage II VRS Incremental Benefit Equation**  The Stage II Removal Guidance provides an equation (Stage II VRS Incremental Benefit Equation) along with sample calculations, recommendations and tables to be used by the States to quantify

the incremental benefit of Stage II VRS controls. U sing this guidance, the variables in the equation are assigned values specific to the Atlanta 13 county are a as depicted below in Table A- 3 .

### Table A**- 3**  **Atlanta Based Values Used in Stage II Incremental Benefit Equation**  Variable Value Basis for Value Q SII 

### 0.9 Georgia adopted the CAA exemptions provisions for small GDFs (<50,000 gal/month) and 0.9 is default value for such states in Stage II Removal Guidance , similar to our own estimates of 2267 out of 2587 facilities containing Stage II controls (0.88, rounds to 0.9) . Q ORVRi 

### See Table 1 Gasoline Dispensed Fraction for a given ye ar provided by Table A- 1 in Stage II Removal Guidance for ye ars 2012 - 2017  iuSII 

### 0.62 Frequency of inspections of Stage II VRS controls is now every 3 years which is c onsidered “minimal and less frequent” which is matched to a Stage II VRS efficiency of 0.62 in the Waiver Rule (p. 28774) *. Q SIIva 

### 0.95 13 - county percentage of facilities with vacuum assist systems as suggested b y the Guidance on Removing Stage II and supported by the Georgia EPD Engines & Fuels Unit. There are approximately

2587 facilities with Stage II in place with 2522 of them using vacuum assist Stage II. These numbers demonstrated a slightly

higher Q SIIva 

### value than guidance (0.97 vs. 0.95), but are going with guidance to be conservative and account for ye ar to year variation. CF i 

### 0.07645*VMT ORVRi



### (See Table 1 for VMT ORVRi 

### values) 0.07645 is control efficiency loss estimate from weighing two technologies tested in Calif ornia Air Resources Board study . This value is what states are asked to use**. VMT percentage (VMT ORVRi 

### ) for a given ye ar is provided by Table A- 1 in Guidance on Removing Stage II for years 2012 - 2017. *The Waiver Rule cites: Technical	Guidance – Stage	II	Vapor	Recovery Systems	for	Control	o f	Vehicle	Refueling at	Gasoline Dispensing	Facilities	Volume	I:	Chapters,”	EPA - 450/3 - 91 - 022a,	November	1991.	This	study	is	a composite	of	multiple	studies . 

### * * EPA Memorandum Calculating Stage II Vacuum Assist Stage II VRS and ORVR Excess Emissions, Glenn Passavant, May 2012 

### The gasoline consumption values and projections were taken from the Department of Energy ’s 2011 “EIA Annual Outlook (AEO)

– Liquid Fuels Supply and Disposition Reference case table” which is referenced on page 20 in EPA’s guidance document with the data source provided b y EPA on the same page under footnote 29. Other options were provided b y the guidance, but this

### was the most straightforward approach. Furthermore, EPA’s guidance document recommends

states use Table A - 4 in the guidance’s appendix to break down the national gasoline consumption numbers into consumption by the relevant state (Georgia in this case) for the base case (year 2010) and then multiply this value b y the ratio of projected consumption/2010 consumption to obtain the future ye ar values s een in this SIP. The AEO report projected in 2017 that gasoline consumption would decrease slightly relative to 2016. Vehicle miles traveled and population is quantified through the transportation planning process whereas gasoline consumption is based on Department of Energy, FHWA and other sources. Vehicle miles traveled can decrease while gasoline consumption flatten out or decrease slightly due to improvements in fuel efficiency of motor vehicles as evidenced by the strengthening of CAFÉ standards **Conv erting Stage II VPS Fractional Incremental Benefit to Tons/Day**  The Guidance on Removing Stage II provides an additional equation with examples and recommendations on how to convert the Stage II increment in fractional form into tons/day VOC reduction. This conversion is necessary as tons/day

reduction benefit values are used in this document in Tables 1 - 2 to demonstrate non- interference. The equation is: Incrementi (tons/day) 

### = (Incrementi (fraction) 

### )(GC i

### )(EF)(conversion factor), where GC i 

### = (GC 2010 

### ) (GC i

### /GC 2010 

### )(ATL fraction 

### ) The description of the variables and the values to be plugged into the eq uation are provided in Table A- 4 .

### Table A**- 4** 

**Variables and Associated Values Needed to Convert Fractional VOC Emission Benefit to Tons/Day**  Variable Value Basis for Value Incrementi (fraction) See Table 1 For a given end of year i , the fractional increment can be obtained from Table A- 1 in this Appendix . For details regarding how it was calculated, see Section 3 and page 1 - 2 of this Appendix . GC 2010 5.9588x10 10 Gallons of gasoline consumed in the United States in 2010 according to the FHWA Highway Statistics -Monthly gasoline reported by StatesMF33GA table (2012 version) . To get a value for a future year value since more recent data is not available, one needs to grow this value using projections. To get Atlanta’s gasoline consumed value, GC i , for a future year i , the GC 2010 value needs to be multiplied by the ratio of future year consumption to 2010 consumption and by the fraction of national gas oline consumed in Atlanta (ATL fraction). The value for this ratio, called “GC i/GC 2010 ”, and ATL fraction is provided below. (GC i/GC 2010) 2012:1.0343

2013:1.0399 2014:1.0410 2015:1.0421 2016:1.0443 2017:1.0377 Ratio of given year’s projected national gasoline consumption to

gasoline consumption in 2010. This ratio is multiplied by the known 2010 national gasoline consumption value, GC 2010 to grow the value to future years. Then to obtain the gasoline consumed sp ecifically in Atlanta, this future value is multiplied by the fraction of national gasoline consumption occurring in Atlanta (ATL fraction). These gasoline consumption statistics and future projections are provided by the Department of Energy’s AIA Annual O utlook (AEO) -Liquid Fuels Supply and Disposition -Reference case table (2012 version) . This ratio is provided here for the years investigated, 2012 - 2017. AT L fraction 0.01677214 Fraction of national gasoline supply consumed by the Atlanta 13 - county area according to Table A-4 in the Guidance on Removing Stage II* . EF 4.6 Uncontrolled displacement refueling emission factor in units of grams per gallon consumed which quantifies the incompatibility between ORVR and Stage II VRS. Value for Georgia provided by Table A - 7 in the Guidance on Removing Stage II *. Conversion factor 7.20465x10 - 9 Converts g/season to tons/day. There are 1.10x10 - 6 tons in a gram and 153 days in an ozone season. Therefore , (1.10x10 - 6ton/g)/153d = 7.20465x10 - 9 ton/g/d 

### * See Appendix A of Guidance on R emoving Stage II for the equation that was used to determine EF for each state and the table (Table A- 7) listing EF by state including Georgia . This guidance also provides additional tables (Tables A - 2 and A- 3) to allow States to determine EF on their ow n using the equation along with local Reid Vapor Pressure data . Georgia compared EF calculated on their own with the Table A- 7 number and obtained the same quantity, 4.6g/gal.

### Using the values in Table A- 4 , the equation for the end of 2013, for example, is reduced to:

Increment2013(tons/day) 

### = (Increment2013(fraction) 

### )(GC 2013 

### )(4.6g/gal)( 7.20465x10 - 9

### ton/g/d)= (Increment2013(fraction) 

### ) (GC 2010

### ) (GC i

### /GC 2010

### )(ATL fraction

### ) )(4.6g/gal)( 7.20465x10 - 9

### ton/g/d)= (0.0454)( 5.9588x10 10 

### gal)(1.0399)( 0.01677214) (4.6g/gal)( 7.20465x10 - 9 

### ton/g/d) = **1.56 tons/d**  Vehicle class for Stage II comprises MOVES vehicle types 21, 31, and 32 which are passenger cars, passenger trucks, and commercial trucks. Of these vehicle types, only those powered by gasoline resulting in Stage II vehicle recovery applicablitiy were used in the analysis . 

### Table A**- 5**  **Age Distribution of Vehicles Used in VOC emission analysis (13 county area out of the 20 county 1997 ozone maintenance area)**  Vehicle Class Year Age Fraction of Vehicles Motorcycle 2008 0 0.0005 Motorcycle 2008 1 0.10051 Motorcycle 2008 2 0.118612 Motorcycle 2008 3 0.09931 Motorcycle 2008 4 0.075108 Motorcycle 2008 5 0.061206 Motorcycle 2008 6 0.053505 Motorcycle 2008 7 0.047805 Motorcycle 2008 8 0.039704 Motorcycle 2008 9 0.036204 Motorcycle 2008 10 0.033903 Motorcycle 2008 11 0.333633 Motorcycle 2008 12 0 Motorcycle 2008 13 0 Motorcycle 2008 14 0 Motorcycle 2008 15 0 Motorcycle 2008 16 0 Motorcycle 2008 17 0 Motorcycle 2008 18 0 Motorcycle 2008 19 0 Motorcycle 2008 20 0 Motorcycle 2008 21 0 Motorcycle 2008 22 0 Motorcycle 2008 23 0 Motorcycle 2008 24 0 Motorcycle 2008 25 0Motorcycle 2008 26 0

Motorcycle 2008 27 0 Motorcycle 2008 28 0 Motorcycle 2008 29 0 Motorcycle 2008 30 0 Passenger Car 2008 0 0.023802 Passenger Car 2008 1 0.071207 Passenger Car 2008 2 0.068707 Passenger Car 2008 3 0.077108 Passenger Car 2008 4 0.072907 Passenger Car 2008 5 0.067107 Passenger Car 2008 6 0.068907 Passenger Car 2008 7 0.065607 Passenger Car 2008 8 0.076308 Passenger Car 2008 9 0.061806 Passenger Car 2008 10 0.055906 Passenger Car 2008 11 0.046105 Passenger Car 2008 12 0.039904 Passenger Car 2008 13 0.037004 Passenger Car 2008 14 0.032503 Passenger Car 2008 15 0.026703 Passenger Car 2008 16 0.021402 Passenger Car 2008 17 0.016602 Passenger Car 2008 18 0.012601 Passenger Car 2008 19 0.008901 Passenger Car 2008 20 0.005401 Passenger Car 2008 21 0.0032 Passenger Car 2008 22 0.0026 Passenger Car 2008 23 0.0023 Passenger Car 2008 24 0.002035 Passenger Car 2008 25 0.0018 Passenger Car 2008 26 0.001592 Passenger Car 2008 27 0.001409 Passenger Car 2008 28 0.001246 Passenger Car 2008 29 0.001102 Passenger Car 2008 30 0.026219 Passenger Truck 2008 0 0.023121 Passenger Truck 2008 1 0.071154 Passenger Truck 2008 2 0.105903 Passenger Truck 2008 3 0.075177 Passenger Truck 2008 4 0.061693Passenger Truck 2008 5 0.069989

Passenger Truck 2008 6 0.083159 Passenger Truck 2008 7 0.026784 Passenger Truck 2008 8 0.039136 Passenger Truck 2008 9 0.043512 Passenger Truck 2008 10 0.041972 Passenger Truck 2008 11 0.033861 Passenger Truck 2008 12 0.029772 Passenger Truck 2008 13 0.039356 Passenger Truck 2008 14 0.041676 Passenger Truck 2008 15 0.043214 Passenger Truck 2008 16 0.029028 Passenger Truck 2008 17 0.035318 Passenger Truck 2008 18 0.030859 Passenger Truck 2008 19 0.025462 Passenger Truck 2008 20 0.017469 Passenger Truck 2008 21 0.01364 Passenger Truck 2008 22 0.015763 Passenger Truck 2008 23 0.000115 Passenger Truck 2008 24 0.000066 Passenger Truck 2008 25 0.000044 Passenger Truck 2008 26 0.000029 Passenger Truck 2008 27 0.000018 Passenger Truck 2008 28 0.000012 Passenger Truck 2008 29 0.000008 Passenger Truck 2008 30 0.002691 Light Commercial Truck 2008 0 0.026942 Light Commercial Truck 2008 1 0.078328 Light Commercial Truck 2008 2 0.106484 Light Commercial Truck 2008 3 0.079146 Light Commercial Truck 2008 4 0.067242 Light Commercial Truck 2008 5 0.06582 Light Commercial Truck 2008 6 0.080436 Light Commercial Truck 2008 7 0.02973 Light Commercial Truck 2008 8 0.040318 Light Commercial Truck 2008 9 0.042595 Light Commercial Truck 2008 10 0.040104 Light Commercial Truck 2008 11 0.031972 Light Commercial Truck 2008 12 0.027782 Light Commercial Truck 2008 13 0.036454 Light Commercial Truck 2008 14 0.038931Light Commercial Truck 2008 15 0.040401

Light Commercial Truck 2008 16 0.027173 Light Commercial Truck 2008 17 0.033193 Light Commercial Truck 2008 18 0.029596 Light Commercial Truck 2008 19 0.024823 Light Commercial Truck 2008 20 0.018135 Light Commercial Truck 2008 21 0.013929 Light Commercial Truck 2008 22 0.015422 Light Commercial Truck 2008 23 0.000146 Light Commercial Truck 2008 24 0.000067 Light Commercial Truck 2008 25 0.000039 Light Commercial Truck 2008 26 0.000026 Light Commercial Truck 2008 27 0.000019 Light Commercial Truck 2008 28 0.000013 Light Commercial Truck 2008 29 0.000009 Light Commercial Truck 2008 30 0.004724 Intercity Bus 2008 0 0.0029 Intercity Bus 2008 1 0.0279 Intercity Bus 2008 2 0.0999 Intercity Bus 2008 3 0.1233 Intercity Bus 2008 4 0.0602 Intercity Bus 2008 5 0.0595 Intercity Bus 2008 6 0.0426 Intercity Bus 2008 7 0.0587 Intercity Bus 2008 8 0.0206 Intercity Bus 2008 9 0.0492 Intercity Bus 2008 10 0.0286 Intercity Bus 2008 11 0.0477 Intercity Bus 2008 12 0.0066 Intercity Bus 2008 13 0.174 Intercity Bus 2008 14 0.0382 Intercity Bus 2008 15 0.0668 Intercity Bus 2008 16 0.0125 Intercity Bus 2008 17 0.025 Intercity Bus 2008 18 0.0117 Intercity Bus 2008 19 0.0081 Intercity Bus 2008 20 0.0125 Intercity Bus 2008 21 0.0147 Intercity Bus 2008 22 0.0088 Intercity Bus 2008 23 0 Intercity Bus 2008 24 0Intercity Bus 2008 25 0

Intercity Bus 2008 26 0 Intercity Bus 2008 27 0 Intercity Bus 2008 28 0 Intercity Bus 2008 29 0 Intercity Bus 2008 30 0 Transit Bus 2008 0 0.0029 Transit Bus 2008 1 0.0279 Transit Bus 2008 2 0.0999 Transit Bus 2008 3 0.1233 Transit Bus 2008 4 0.0602 Transit Bus 2008 5 0.0595 Transit Bus 2008 6 0.0426 Transit Bus 2008 7 0.0587 Transit Bus 2008 8 0.0206 Transit Bus 2008 9 0.0492 Transit Bus 2008 10 0.0286 Transit Bus 2008 11 0.0477 Transit Bus 2008 12 0.0066 Transit Bus 2008 13 0.174 Transit Bus 2008 14 0.0382 Transit Bus 2008 15 0.0668 Transit Bus 2008 16 0.0125 Transit Bus 2008 17 0.025 Transit Bus 2008 18 0.0117 Transit Bus 2008 19 0.0081 Transit Bus 2008 20 0.0125 Transit Bus 2008 21 0.0147 Transit Bus 2008 22 0.0088 Transit Bus 2008 23 0 Transit Bus 2008 24 0 Transit Bus 2008 25 0 Transit Bus 2008 26 0 Transit Bus 2008 27 0 Transit Bus 2008 28 0 Transit Bus 2008 29 0 Transit Bus 2008 30 0 School Bus 2008 0 0.036622 School Bus 2008 1 0.054844 School Bus 2008 2 0.050577 School Bus 2008 3 0.073061School Bus 2008 4 0.064071

School Bus 2008 5 0.071838 School Bus 2008 6 0.048141 School Bus 2008 7 0.064119 School Bus 2008 8 0.079193 School Bus 2008 9 0.024764 School Bus 2008 10 0.058797 School Bus 2008 11 0.045612 School Bus 2008 12 0.064454 School Bus 2008 13 0.07385 School Bus 2008 14 0.031278 School Bus 2008 15 0.049673 School Bus 2008 16 0.014186 School Bus 2008 17 0.011503 School Bus 2008 18 0.013431 School Bus 2008 19 0.010755 School Bus 2008 20 0.007536 School Bus 2008 21 0.005224 School Bus 2008 22 0.006442 School Bus 2008 23 0.008637 School Bus 2008 24 0.011178 School Bus 2008 25 0.008357 School Bus 2008 26 0.000128 School Bus 2008 27 0.000084 School Bus 2008 28 0.000054 School Bus 2008 29 0.000035 School Bus 2008 30 0.011556 Refuse Truck 2008 0 0.049341 Refuse Truck 2008 1 0.069878 Refuse Truck 2008 2 0.084288 Refuse Truck 2008 3 0.078985 Refuse Truck 2008 4 0.074601 Refuse Truck 2008 5 0.06037 Refuse Truck 2008 6 0.050813 Refuse Truck 2008 7 0.049757 Refuse Truck 2008 8 0.0521 Refuse Truck 2008 9 0.040936 Refuse Truck 2008 10 0.037922 Refuse Truck 2008 11 0.03268 Refuse Truck 2008 12 0.03161 Refuse Truck 2008 13 0.029834Refuse Truck 2008 14 0.032804

Refuse Truck 2008 15 0.031624 Refuse Truck 2008 16 0.027274 Refuse Truck 2008 17 0.024091 Refuse Truck 2008 18 0.026403 Refuse Truck 2008 19 0.018246 Refuse Truck 2008 20 0.01424 Refuse Truck 2008 21 0.012958 Refuse Truck 2008 22 0.012191 Refuse Truck 2008 23 0.011305 Refuse Truck 2008 24 0.010775 Refuse Truck 2008 25 0.008633 Refuse Truck 2008 26 0.007523 Refuse Truck 2008 27 0.006586 Refuse Truck 2008 28 0.006176 Refuse Truck 2008 29 0.005322 Refuse Truck 2008 30 0.000734 Single Unit Short- haul Truck 2008 0 0.048225 Single Unit Short- haul Truck 2008 1 0.048863 Single Unit Short- haul Truck 2008 2 0.074115 Single Unit Short- haul Truck 2008 3 0.082434 Single Unit Short- haul Truck 2008 4 0.079271 Single Unit Short- haul Truck 2008 5 0.062335 Single Unit Short- haul Truck 2008 6 0.046762 Single Unit Short- haul Truck 2008 7 0.045186 Single Unit Short- haul Truck 2008 8 0.059546 Single Unit Short- haul Truck 2008 9 0.038632 Single Unit Short- haul Truck 2008 10 0.034284 Single Unit Short- haul Truck 2008 11 0.030965 Single Unit Short- haul Truck 2008 12 0.031778 Single Unit Short- haul Truck 2008 13 0.031018 Single Unit Short- haul Truck 2008 14 0.037529 Single Unit Short- haul Truck 2008 15 0.037003 Single Unit Short- haul Truck 2008 16 0.027646 Single Unit Short- haul Truck 2008 17 0.025152 Single Unit Short- haul Truck 2008 18 0.028021 Single Unit Short- haul Truck 2008 19 0.019005 Single Unit Short- haul Truck 2008 20 0.011815 Single Unit Short- haul Truck 2008 21 0.009983 Single Unit Short- haul Truck 2008 22 0.010546 Single Unit Short- haul Truck 2008 23 0.01134Single Unit Short- haul Truck 2008 24 0.01193

Single Unit Short- haul Truck 2008 25 0.00392 Single Unit Short- haul Truck 2008 26 0.003254 Single Unit Short- haul Truck 2008 27 0.002738 Single Unit Short- haul Truck 2008 28 0.002479 Single Unit Short- haul Truck 2008 29 0.002093 Single Unit Short- haul Truck 2008 30 0.042131 Single Unit Long -haul Truck 2008 0 0.051583 Single Unit Long -haul Truck 2008 1 0.050056 Single Unit Long -haul Truck 2008 2 0.076553 Single Unit Long -haul Truck 2008 3 0.085008 Single Unit Long -haul Truck 2008 4 0.081844 Single Unit Long -haul Truck 2008 5 0.064296 Single Unit Long -haul Truck 2008 6 0.048084 Single Unit Long -haul Truck 2008 7 0.04642 Single Unit Long -haul Truck 2008 8 0.059963 Single Unit Long -haul Truck 2008 9 0.039604 Single Unit Long -haul Truck 2008 10 0.034566 Single Unit Long -haul Truck 2008 11 0.031964 Single Unit Long -haul Truck 2008 12 0.032957 Single Unit Long -haul Truck 2008 13 0.031111 Single Unit Long -haul Truck 2008 14 0.037621 Single Unit Long -haul Truck 2008 15 0.037514 Single Unit Long -haul Truck 2008 16 0.027761 Single Unit Long -haul Truck 2008 17 0.025128 Single Unit Long -haul Truck 2008 18 0.027729 Single Unit Long -haul Truck 2008 19 0.018184 Single Unit Long -haul Truck 2008 20 0.011305 Single Unit Long -haul Truck 2008 21 0.009725 Single Unit Long -haul Truck 2008 22 0.009872 Single Unit Long -haul Truck 2008 23 0.01001 Single Unit Long -haul Truck 2008 24 0.01035 Single Unit Long -haul Truck 2008 25 0.003583 Single Unit Long -haul Truck 2008 26 0.003004 Single Unit Long -haul Truck 2008 27 0.002552 Single Unit Long -haul Truck 2008 28 0.002335 Single Unit Long -haul Truck 2008 29 0.001984 Single Unit Long -haul Truck 2008 30 0.027337 Motor Home 2008 0 0.039046 Motor Home 2008 1 0.032525 Motor Home 2008 2 0.061508Motor Home 2008 3 0.078129

Motor Home 2008 4 0.075746 Motor Home 2008 5 0.058638 Motor Home 2008 6 0.040861 Motor Home 2008 7 0.039175 Motor Home 2008 8 0.06322 Motor Home 2008 9 0.034721 Motor Home 2008 10 0.031256 Motor Home 2008 11 0.027359 Motor Home 2008 12 0.028912 Motor Home 2008 13 0.031535 Motor Home 2008 14 0.040286 Motor Home 2008 15 0.039122 Motor Home 2008 16 0.02759 Motor Home 2008 17 0.025884 Motor Home 2008 18 0.029773 Motor Home 2008 19 0.021554 Motor Home 2008 20 0.011566 Motor Home 2008 21 0.008748 Motor Home 2008 22 0.011203 Motor Home 2008 23 0.014719 Motor Home 2008 24 0.016648 Motor Home 2008 25 0.00178 Motor Home 2008 26 0.001177 Motor Home 2008 27 0.000766 Motor Home 2008 28 0.000497 Motor Home 2008 29 0.000321 Motor Home 2008 30 0.105735 Com bination Short-haul Truck 2008 0 0.04779 Com bination Short-haul Truck 2008 1 0.072456 Com bination Short-haul Truck 2008 2 0.084584 Com bination Short-haul Truck 2008 3 0.077142 Com bination Short-haul Truck 2008 4 0.072573 Com bination Short-haul Truck 2008 5 0.059065 Com bination Short-haul Truck 2008 6 0.050749 Com bination Short-haul Truck 2008 7 0.049819 Com bination Short-haul Truck 2008 8 0.050756 Com bination Short-haul Truck 2008 9 0.040788 Com bination Short-haul Truck 2008 10 0.038333 Com bination Short-haul Truck 2008 11 0.032429 Com bination Short-haul Truck 2008 12 0.030981Com

bination Short-haul Truck 2008 13 0.029607 Com bination Short-haul Truck 2008 14 0.032044 Com bination Short-haul Truck 2008 15 0.030547 Com bination Short-haul Truck 2008 16 0.02716 Com bination Short-haul Truck 2008 17 0.023944 Com bination Short-haul Truck 2008 18 0.02631 Com bination Short-haul Truck 2008 19 0.018552 Com bination Short-haul Truck 2008 20 0.014869 Com bination Short-haul Truck 2008 21 0.01354 Com bination Short-haul Truck 2008 22 0.012786 Com bination Short-haul Truck 2008 23 0.011981 Com bination Short-haul Truck 2008 24 0.011409 Com bination Short-haul Truck 2008 25 0.009523 Com bination Short-haul Truck 2008 26 0.0083 Com bination Short-haul Truck 2008 27 0.007265 Com bination Short-haul Truck 2008 28 0.006811 Com bination Short-haul Truck 2008 29 0.005868 Com bination Short-haul Truck 2008 30 0.002021 Com bination Long -haul Truck 2008 0 0.045964 Com bination Long -haul Truck 2008 1 0.077391 Com bination Long -haul Truck 2008 2 0.085794 Com bination Long -haul Truck 2008 3 0.074575 Com bination Long -haul Truck 2008 4 0.069676 Com bination Long -haul Truck 2008 5 0.057287 Com bination Long -haul Truck 2008 6 0.051006 Com bination Long -haul Truck 2008 7 0.050275 Com bination Long -haul Truck 2008 8 0.048475 Com bination Long -haul Truck 2008 9 0.040795 Com bination Long -haul Truck 2008 10 0.039143 Com bination Long -haul Truck 2008 11 0.032259 Com bination Long -haul Truck 2008 12 0.030188 Com bination Long -haul Truck 2008 13 0.029228 Com bination Long -haul Truck 2008 14 0.03071 Com bination Long -haul Truck 2008 15 0.028768 Com bination Long -haul Truck 2008 16 0.026989 Com bination Long -haul Truck 2008 17 0.023673 Com bination Long -haul Truck 2008 18 0.02606 Com bination Long -haul Truck 2008 19 0.018868 Com bination Long -haul Truck 2008 20 0.015849 Com bination Long -haul Truck 2008 21 0.014508 Com bination Long -haul Truck 2008 22 0.013658Com

bination Long -haul Truck 2008 23 0.012814 Com bination Long -haul Truck 2008 24 0.012098 Com bination Long -haul Truck 2008 25 0.011015 Com bination Long -haul Truck 2008 26 0.009616 Com bination Long -haul Truck 2008 27 0.008424 Com bination Long -haul Truck 2008 28 0.007902 Com bination Long -haul Truck 2008 29 0.006811 Com bination Long -haul Truck 2008 30 0.000182 

### Table A**- 6**  **Age Distribution of Vehicles Used in VOC emission analysis (7 county area out of the 20 county 1997 ozone maintenance area)**  Vehicle Class Year Age Fraction of Vehicles Motorcycle 2008 0 0.0005 Motorcycle 2008 1 0.0984 Motorcycle 2008 2 0.1081 Motorcycle 2008 3 0.0942 Motorcycle 2008 4 0.0741 Motorcycle 2008 5 0.0577 Motorcycle 2008 6 0.0549 Motorcycle 2008 7 0.0472 Motorcycle 2008 8 0.0387 Motorcycle 2008 9 0.0364 Motorcycle 2008 10 0.0263 Motorcycle 2008 11 0.3635 Motorcycle 2008 12 0 Motorcycle 2008 13 0 Motorcycle 2008 14 0 Motorcycle 2008 15 0 Motorcycle 2008 16 0 Motorcycle 2008 17 0 Motorcycle 2008 18 0 Motorcycle 2008 19 0 Motorcycle 2008 20 0 Motorcycle 2008 21 0 Motorcycle 2008 22 0 Motorcycle 2008 23 0 Motorcycle 2008 24 0 Motorcycle 2008 25 0Motorcycle 2008 26 0

Motorcycle 2008 27 0 Motorcycle 2008 28 0 Motorcycle 2008 29 0 Motorcycle 2008 30 0 Passenger Car 2008 0 0.009901 Passenger Car 2008 1 0.044104 Passenger Car 2008 2 0.049405 Passenger Car 2008 3 0.057706 Passenger Car 2008 4 0.054905 Passenger Car 2008 5 0.053105 Passenger Car 2008 6 0.057206 Passenger Car 2008 7 0.057606 Passenger Car 2008 8 0.069907 Passenger Car 2008 9 0.061106 Passenger Car 2008 10 0.058806 Passenger Car 2008 11 0.050405 Passenger Car 2008 12 0.048005 Passenger Car 2008 13 0.045005 Passenger Car 2008 14 0.045505 Passenger Car 2008 15 0.040104 Passenger Car 2008 16 0.033603 Passenger Car 2008 17 0.029303 Passenger Car 2008 18 0.025703 Passenger Car 2008 19 0.019702 Passenger Car 2008 20 0.012201 Passenger Car 2008 21 0.007001 Passenger Car 2008 22 0.006501 Passenger Car 2008 23 0.005601 Passenger Car 2008 24 0.004825 Passenger Car 2008 25 0.004157 Passenger Car 2008 26 0.003581 Passenger Car 2008 27 0.003086 Passenger Car 2008 28 0.002658 Passenger Car 2008 29 0.00229 Passenger Car 2008 30 0.037008 Passenger Truck 2008 0 0.0134 Passenger Truck 2008 1 0.040861 Passenger Truck 2008 2 0.047061 Passenger Truck 2008 3 0.047678 Passenger Truck 2008 4 0.049802Passenger Truck 2008 5 0.055112

Passenger Truck 2008 6 0.070443 Passenger Truck 2008 7 0.029079 Passenger Truck 2008 8 0.039684 Passenger Truck 2008 9 0.046467 Passenger Truck 2008 10 0.04476 Passenger Truck 2008 11 0.038319 Passenger Truck 2008 12 0.035567 Passenger Truck 2008 13 0.047014 Passenger Truck 2008 14 0.053968 Passenger Truck 2008 15 0.058407 Passenger Truck 2008 16 0.03932 Passenger Truck 2008 17 0.052093 Passenger Truck 2008 18 0.051714 Passenger Truck 2008 19 0.044402 Passenger Truck 2008 20 0.031351 Passenger Truck 2008 21 0.02613 Passenger Truck 2008 22 0.030012 Passenger Truck 2008 23 0.000478 Passenger Truck 2008 24 0.000436 Passenger Truck 2008 25 0.000422 Passenger Truck 2008 26 0.000402 Passenger Truck 2008 27 0.000372 Passenger Truck 2008 28 0.000356 Passenger Truck 2008 29 0.000343 Passenger Truck 2008 30 0.004548 Light Commercial Truck 2008 0 0.015685 Light Commercial Truck 2008 1 0.042317 Light Commercial Truck 2008 2 0.049047 Light Commercial Truck 2008 3 0.051342 Light Commercial Truck 2008 4 0.055018 Light Commercial Truck 2008 5 0.051403 Light Commercial Truck 2008 6 0.06946 Light Commercial Truck 2008 7 0.032822 Light Commercial Truck 2008 8 0.041934 Light Commercial Truck 2008 9 0.046121 Light Commercial Truck 2008 10 0.04344 Light Commercial Truck 2008 11 0.03658 Light Commercial Truck 2008 12 0.033358 Light Commercial Truck 2008 13 0.043466 Light Commercial Truck 2008 14 0.050827Light Commercial Truck 2008 15 0.055037

Light Commercial Truck 2008 16 0.037184 Light Commercial Truck 2008 17 0.049276 Light Commercial Truck 2008 18 0.049831 Light Commercial Truck 2008 19 0.043615 Light Commercial Truck 2008 20 0.032879 Light Commercial Truck 2008 21 0.026545 Light Commercial Truck 2008 22 0.029535 Light Commercial Truck 2008 23 0.000493 Light Commercial Truck 2008 24 0.000405 Light Commercial Truck 2008 25 0.000367 Light Commercial Truck 2008 26 0.000361 Light Commercial Truck 2008 27 0.000393 Light Commercial Truck 2008 28 0.000386 Light Commercial Truck 2008 29 0.000372 Light Commercial Truck 2008 30 0.010501 Intercity Bus 2008 0 0 Intercity Bus 2008 1 0.039212 Intercity Bus 2008 2 0.107832 Intercity Bus 2008 3 0.078424 Intercity Bus 2008 4 0.039212 Intercity Bus 2008 5 0.068621 Intercity Bus 2008 6 0.019606 Intercity Bus 2008 7 0.196159 Intercity Bus 2008 8 0.098029 Intercity Bus 2008 9 0.039212 Intercity Bus 2008 10 0.049015 Intercity Bus 2008 11 0.019606 Intercity Bus 2008 12 0.019606 Intercity Bus 2008 13 0.009803 Intercity Bus 2008 14 0.019606 Intercity Bus 2008 15 0 Intercity Bus 2008 16 0.019606 Intercity Bus 2008 17 0.009803 Intercity Bus 2008 18 0.009803 Intercity Bus 2008 19 0.019606 Intercity Bus 2008 20 0.009803 Intercity Bus 2008 21 0.078424 Intercity Bus 2008 22 0.049015 Intercity Bus 2008 23 0 Intercity Bus 2008 24 0Intercity Bus 2008 25 0

Intercity Bus 2008 26 0 Intercity Bus 2008 27 0 Intercity Bus 2008 28 0 Intercity Bus 2008 29 0 Intercity Bus 2008 30 0 Transit Bus 2008 0 0 Transit Bus 2008 1 0.039212 Transit Bus 2008 2 0.107832 Transit Bus 2008 3 0.078424 Transit Bus 2008 4 0.039212 Transit Bus 2008 5 0.068621 Transit Bus 2008 6 0.019606 Transit Bus 2008 7 0.196159 Transit Bus 2008 8 0.098029 Transit Bus 2008 9 0.039212 Transit Bus 2008 10 0.049015 Transit Bus 2008 11 0.019606 Transit Bus 2008 12 0.019606 Transit Bus 2008 13 0.009803 Transit Bus 2008 14 0.019606 Transit Bus 2008 15 0 Transit Bus 2008 16 0.019606 Transit Bus 2008 17 0.009803 Transit Bus 2008 18 0.009803 Transit Bus 2008 19 0.019606 Transit Bus 2008 20 0.009803 Transit Bus 2008 21 0.078424 Transit Bus 2008 22 0.049015 Transit Bus 2008 23 0 Transit Bus 2008 24 0 Transit Bus 2008 25 0 Transit Bus 2008 26 0 Transit Bus 2008 27 0 Transit Bus 2008 28 0 Transit Bus 2008 29 0 Transit Bus 2008 30 0 School Bus 2008 0 0.064774 School Bus 2008 1 0.015322 School Bus 2008 2 0.068632 School Bus 2008 3 0.063226School Bus 2008 4 0.068425

School Bus 2008 5 0.059428 School Bus 2008 6 0.02765 School Bus 2008 7 0.085921 School Bus 2008 8 0.095068 School Bus 2008 9 0.006077 School Bus 2008 10 0.037989 School Bus 2008 11 0.031647 School Bus 2008 12 0.042059 School Bus 2008 13 0.067039 School Bus 2008 14 0.033032 School Bus 2008 15 0.065607 School Bus 2008 16 0.016997 School Bus 2008 17 0.014547 School Bus 2008 18 0.017783 School Bus 2008 19 0.012217 School Bus 2008 20 0.012787 School Bus 2008 21 0.009648 School Bus 2008 22 0.010238 School Bus 2008 23 0.010624 School Bus 2008 24 0.010901 School Bus 2008 25 0.007175 School Bus 2008 26 0.006278 School Bus 2008 27 0.005723 School Bus 2008 28 0.00207 School Bus 2008 29 0.00013 School Bus 2008 30 0.030987 Refuse Truck 2008 0 0.032947 Refuse Truck 2008 1 0.053251 Refuse Truck 2008 2 0.053796 Refuse Truck 2008 3 0.065918 Refuse Truck 2008 4 0.068904 Refuse Truck 2008 5 0.058114 Refuse Truck 2008 6 0.050908 Refuse Truck 2008 7 0.051593 Refuse Truck 2008 8 0.057315 Refuse Truck 2008 9 0.046104 Refuse Truck 2008 10 0.041169 Refuse Truck 2008 11 0.036167 Refuse Truck 2008 12 0.035258 Refuse Truck 2008 13 0.037093Refuse Truck 2008 14 0.033576

Refuse Truck 2008 15 0.037192 Refuse Truck 2008 16 0.032712 Refuse Truck 2008 17 0.03073 Refuse Truck 2008 18 0.030444 Refuse Truck 2008 19 0.023488 Refuse Truck 2008 20 0.018045 Refuse Truck 2008 21 0.017664 Refuse Truck 2008 22 0.016542 Refuse Truck 2008 23 0.015199 Refuse Truck 2008 24 0.015258 Refuse Truck 2008 25 0.010792 Refuse Truck 2008 26 0.008885 Refuse Truck 2008 27 0.006868 Refuse Truck 2008 28 0.006436 Refuse Truck 2008 29 0.005545 Refuse Truck 2008 30 0.002088 Single Unit Short- haul Truck 2008 0 0.018095 Single Unit Short- haul Truck 2008 1 0.030997 Single Unit Short- haul Truck 2008 2 0.037588 Single Unit Short- haul Truck 2008 3 0.051465 Single Unit Short- haul Truck 2008 4 0.058546 Single Unit Short- haul Truck 2008 5 0.045876 Single Unit Short- haul Truck 2008 6 0.039778 Single Unit Short- haul Truck 2008 7 0.040884 Single Unit Short- haul Truck 2008 8 0.053671 Single Unit Short- haul Truck 2008 9 0.038557 Single Unit Short- haul Truck 2008 10 0.032097 Single Unit Short- haul Truck 2008 11 0.0312 Single Unit Short- haul Truck 2008 12 0.032839 Single Unit Short- haul Truck 2008 13 0.038872 Single Unit Short- haul Truck 2008 14 0.030822 Single Unit Short- haul Truck 2008 15 0.039118 Single Unit Short- haul Truck 2008 16 0.036573 Single Unit Short- haul Truck 2008 17 0.036517 Single Unit Short- haul Truck 2008 18 0.039263 Single Unit Short- haul Truck 2008 19 0.026897 Single Unit Short- haul Truck 2008 20 0.019728 Single Unit Short- haul Truck 2008 21 0.018272 Single Unit Short- haul Truck 2008 22 0.019638 Single Unit Short- haul Truck 2008 23 0.021677Single Unit Short- haul Truck 2008 24 0.025482

Single Unit Short- haul Truck 2008 25 0.006893 Single Unit Short- haul Truck 2008 26 0.004457 Single Unit Short- haul Truck 2008 27 0.003368 Single Unit Short- haul Truck 2008 28 0.002956 Single Unit Short- haul Truck 2008 29 0.002452 Single Unit Short- haul Truck 2008 30 0.115422 Single Unit Long -haul Truck 2008 0 0.019088 Single Unit Long -haul Truck 2008 1 0.032835 Single Unit Long -haul Truck 2008 2 0.039847 Single Unit Long -haul Truck 2008 3 0.055161 Single Unit Long -haul Truck 2008 4 0.063103 Single Unit Long -haul Truck 2008 5 0.04944 Single Unit Long -haul Truck 2008 6 0.042936 Single Unit Long -haul Truck 2008 7 0.044115 Single Unit Long -haul Truck 2008 8 0.056385 Single Unit Long -haul Truck 2008 9 0.041101 Single Unit Long -haul Truck 2008 10 0.033782 Single Unit Long -haul Truck 2008 11 0.033499 Single Unit Long -haul Truck 2008 12 0.035515 Single Unit Long -haul Truck 2008 13 0.040682 Single Unit Long -haul Truck 2008 14 0.031709 Single Unit Long -haul Truck 2008 15 0.041152 Single Unit Long -haul Truck 2008 16 0.038508 Single Unit Long -haul Truck 2008 17 0.037969 Single Unit Long -haul Truck 2008 18 0.040433 Single Unit Long -haul Truck 2008 19 0.026605 Single Unit Long -haul Truck 2008 20 0.019648 Single Unit Long -haul Truck 2008 21 0.018734 Single Unit Long -haul Truck 2008 22 0.019247 Single Unit Long -haul Truck 2008 23 0.019631 Single Unit Long -haul Truck 2008 24 0.022576 Single Unit Long -haul Truck 2008 25 0.006133 Single Unit Long -haul Truck 2008 26 0.004077 Single Unit Long -haul Truck 2008 27 0.003087 Single Unit Long -haul Truck 2008 28 0.002754 Single Unit Long -haul Truck 2008 29 0.002309 Single Unit Long -haul Truck 2008 30 0.077936 Motor Home 2008 0 0.007855 Motor Home 2008 1 0.014902 Motor Home 2008 2 0.023879Motor Home 2008 3 0.035604

Motor Home 2008 4 0.043055 Motor Home 2008 5 0.031506 Motor Home 2008 6 0.026888 Motor Home 2008 7 0.028062 Motor Home 2008 8 0.045813 Motor Home 2008 9 0.028942 Motor Home 2008 10 0.023499 Motor Home 2008 11 0.023525 Motor Home 2008 12 0.025735 Motor Home 2008 13 0.035922 Motor Home 2008 14 0.027387 Motor Home 2008 15 0.035761 Motor Home 2008 16 0.034492 Motor Home 2008 17 0.036531 Motor Home 2008 18 0.041537 Motor Home 2008 19 0.02938 Motor Home 2008 20 0.020818 Motor Home 2008 21 0.017604 Motor Home 2008 22 0.022169 Motor Home 2008 23 0.029632 Motor Home 2008 24 0.037335 Motor Home 2008 25 0.006401 Motor Home 2008 26 0.002856 Motor Home 2008 27 0.002071 Motor Home 2008 28 0.001498 Motor Home 2008 29 0.001079 Motor Home 2008 30 0.258261 Com bination Short-haul Truck 2008 0 0.034447 Com bination Short-haul Truck 2008 1 0.055321 Com bination Short-haul Truck 2008 2 0.054839 Com bination Short-haul Truck 2008 3 0.066003 Com bination Short-haul Truck 2008 4 0.068005 Com bination Short-haul Truck 2008 5 0.057968 Com bination Short-haul Truck 2008 6 0.050816 Com bination Short-haul Truck 2008 7 0.05141 Com bination Short-haul Truck 2008 8 0.056442 Com bination Short-haul Truck 2008 9 0.04584 Com bination Short-haul Truck 2008 10 0.041549 Com bination Short-haul Truck 2008 11 0.03568 Com bination Short-haul Truck 2008 12 0.034238Com

bination Short-haul Truck 2008 13 0.035945 Com bination Short-haul Truck 2008 14 0.033507 Com bination Short-haul Truck 2008 15 0.035914 Com bination Short-haul Truck 2008 16 0.03122 Com bination Short-haul Truck 2008 17 0.029221 Com bination Short-haul Truck 2008 18 0.028669 Com bination Short-haul Truck 2008 19 0.023178 Com bination Short-haul Truck 2008 20 0.017858 Com bination Short-haul Truck 2008 21 0.017349 Com bination Short-haul Truck 2008 22 0.016322 Com bination Short-haul Truck 2008 23 0.015356 Com bination Short-haul Truck 2008 24 0.015343 Com bination Short-haul Truck 2008 25 0.011703 Com bination Short-haul Truck 2008 26 0.009676 Com bination Short-haul Truck 2008 27 0.00748 Com bination Short-haul Truck 2008 28 0.007006 Com bination Short-haul Truck 2008 29 0.006033 Com bination Short-haul Truck 2008 30 0.005661 Com bination Long -haul Truck 2008 0 0.037494 Com bination Long -haul Truck 2008 1 0.059672 Com bination Long -haul Truck 2008 2 0.05745 Com bination Long -haul Truck 2008 3 0.067314 Com bination Long -haul Truck 2008 4 0.067788 Com bination Long -haul Truck 2008 5 0.058815 Com bination Long -haul Truck 2008 6 0.051635 Com bination Long -haul Truck 2008 7 0.052084 Com bination Long -haul Truck 2008 8 0.055695 Com bination Long -haul Truck 2008 9 0.046153 Com bination Long -haul Truck 2008 10 0.042764 Com bination Long -haul Truck 2008 11 0.035508 Com bination Long -haul Truck 2008 12 0.033212 Com bination Long -haul Truck 2008 13 0.034413 Com bination Long -haul Truck 2008 14 0.033654 Com bination Long -haul Truck 2008 15 0.034213 Com bination Long -haul Truck 2008 16 0.029101 Com bination Long -haul Truck 2008 17 0.02692 Com bination Long -haul Truck 2008 18 0.025794 Com bination Long -haul Truck 2008 19 0.02252 Com bination Long -haul Truck 2008 20 0.017492 Com bination Long -haul Truck 2008 21 0.016919 Com bination Long -haul Truck 2008 22 0.015798Com

bination Long -haul Truck 2008 23 0.015004 Com bination Long -haul Truck 2008 24 0.014591 Com bination Long -haul Truck 2008 25 0.013126 Com bination Long -haul Truck 2008 26 0.010998 Com bination Long -haul Truck 2008 27 0.00851 Com bination Long -haul Truck 2008 28 0.007982 Com bination Long -haul Truck 2008 29 0.006879 Com bination Long -haul Truck 2008 30 0.000502