                   Stage II VRS Incremental Benefit Analysis
EPA'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 keeping Stage II VRS versus the phase in of ORVR.  The overall Stage II-ORVR increment is an area-wide emission control gain over the ozone season from Stage II installations at GDFs as ORVR 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 Incremental Benefit Equation) used in the calculation is: 


   (1) incrementi = Emissions Benefit of Stage II  -  Emissions Increase Due to Incompatibility, or

      incrementi = (QSII)(1-QORVRi)(NiuSII)  -  (QSIIva)(CFi), 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

      QSII = fraction of gasoline throughput covered by Stage II vapor recovery systems

      QORVRi = fraction 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) 

      QSIIva = fraction of gasoline throughput covered by traditional vacuum assist Stage II VRS

      CFi = 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-QORVRi)(0.62)  -  (0.95)(0.765)(VMTORVRi), where:
      QORVRi  = fraction of annual gallons of highway motor gasoline dispensed to ORVR-equipped vehicles for a given year
      VMTORVRi = 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-OAR-2010-1076).
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 QORVRi  and VMTORVRi for years ending in 2012-2017.





                                  Table A-1 
                                       
 Incremental Benefit of Maintaining Stage II VRS in Atlanta with ORVR Phase-In
                                       
                                  Year Ending
                                     QORVR

VMTORVR (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 conversion 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 tables in the guidance was divided by 100 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 projected 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 2014-2016.   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.  Using this guidance, the variables in the equation are assigned values specific to the Atlanta 13 county area 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

QSII
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).

QORVRi
See Table 1
Gasoline Dispensed Fraction for a given year provided by Table A-1 in Stage II Removal Guidance for years 2012-2017

iuSII
0.62
Frequency of inspections of Stage II VRS controls is now every 3 years which is considered "minimal and less frequent" which is matched to a Stage II VRS efficiency of 0.62 in the Waiver Rule (p. 28774)*. 
 
QSIIva
0.95
13-county percentage of facilities with vacuum assist systems as suggested by 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 QSIIva value than guidance (0.97 vs. 0.95), but are going with guidance to be conservative and account for year to year variation. 

CFi
0.07645*VMTORVRi
(See Table 1 for VMTORVRi values)
0.07645 is control efficiency loss estimate from weighing two technologies tested in California Air Resources Board study. This value is what states are asked to use**.
VMT percentage (VMTORVRi ) for a given year 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 of 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 by EPA on the same page under footnote 29. Other options were provided by 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 by the ratio of projected consumption/2010 consumption to obtain the future year values seen 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

      Converting 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))(GCi)(EF)(conversion factor),

where GCi = (GC2010) (GCi/GC2010)(ATLfraction) 

The description of the variables and the values to be plugged into the equation 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.

GC2010
5.9588x10[10]
Gallons of gasoline consumed in the United States in 2010 according to the FHWA Highway Statistics-Monthly gasoline reported by States-MF33GA 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, GCi, for a future year i, the GC2010 value needs to be multiplied by the ratio of future year consumption to 2010 consumption and by the fraction of national gasoline consumed in Atlanta (ATLfraction). The value for this ratio, called "GCi/GC2010", and ATLfraction is provided below.

(GCi/GC2010)
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, GC2010 to grow the value to future years. Then to obtain the gasoline consumed specifically in Atlanta, this future value is multiplied by the fraction of national gasoline consumption occurring in Atlanta (ATLfraction). These gasoline consumption statistics and future projections are provided by the Department of Energy's AIA Annual Outlook (AEO)-Liquid Fuels Supply and Disposition-Reference case table (2012 version).  This ratio is provided here for the years investigated, 2012-2017.

ATLfraction
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[-6]ton/g)/153d = 7.20465x10[-9] ton/g/d

* See Appendix A of Guidance on Removing 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 own 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))(GC2013)(4.6g/gal)( 7.20465x10[-9]ton/g/d)=
	(Increment2013(fraction)) (GC2010) (GCi/GC2010)(ATLfraction) )(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
0
Motorcycle
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
0.061693
Passenger 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
0.038931
Light 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
0
Intercity 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
0.073061
School 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
0.029834
Refuse 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
0.01134
Single 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
0.061508
Motor 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
Combination Short-haul Truck
2008
0
0.04779
Combination Short-haul Truck
2008
1
0.072456
Combination Short-haul Truck
2008
2
0.084584
Combination Short-haul Truck
2008
3
0.077142
Combination Short-haul Truck
2008
4
0.072573
Combination Short-haul Truck
2008
5
0.059065
Combination Short-haul Truck
2008
6
0.050749
Combination Short-haul Truck
2008
7
0.049819
Combination Short-haul Truck
2008
8
0.050756
Combination Short-haul Truck
2008
9
0.040788
Combination Short-haul Truck
2008
10
0.038333
Combination Short-haul Truck
2008
11
0.032429
Combination Short-haul Truck
2008
12
0.030981
Combination Short-haul Truck
2008
13
0.029607
Combination Short-haul Truck
2008
14
0.032044
Combination Short-haul Truck
2008
15
0.030547
Combination Short-haul Truck
2008
16
0.02716
Combination Short-haul Truck
2008
17
0.023944
Combination Short-haul Truck
2008
18
0.02631
Combination Short-haul Truck
2008
19
0.018552
Combination Short-haul Truck
2008
20
0.014869
Combination Short-haul Truck
2008
21
0.01354
Combination Short-haul Truck
2008
22
0.012786
Combination Short-haul Truck
2008
23
0.011981
Combination Short-haul Truck
2008
24
0.011409
Combination Short-haul Truck
2008
25
0.009523
Combination Short-haul Truck
2008
26
0.0083
Combination Short-haul Truck
2008
27
0.007265
Combination Short-haul Truck
2008
28
0.006811
Combination Short-haul Truck
2008
29
0.005868
Combination Short-haul Truck
2008
30
0.002021
Combination Long-haul Truck
2008
0
0.045964
Combination Long-haul Truck
2008
1
0.077391
Combination Long-haul Truck
2008
2
0.085794
Combination Long-haul Truck
2008
3
0.074575
Combination Long-haul Truck
2008
4
0.069676
Combination Long-haul Truck
2008
5
0.057287
Combination Long-haul Truck
2008
6
0.051006
Combination Long-haul Truck
2008
7
0.050275
Combination Long-haul Truck
2008
8
0.048475
Combination Long-haul Truck
2008
9
0.040795
Combination Long-haul Truck
2008
10
0.039143
Combination Long-haul Truck
2008
11
0.032259
Combination Long-haul Truck
2008
12
0.030188
Combination Long-haul Truck
2008
13
0.029228
Combination Long-haul Truck
2008
14
0.03071
Combination Long-haul Truck
2008
15
0.028768
Combination Long-haul Truck
2008
16
0.026989
Combination Long-haul Truck
2008
17
0.023673
Combination Long-haul Truck
2008
18
0.02606
Combination Long-haul Truck
2008
19
0.018868
Combination Long-haul Truck
2008
20
0.015849
Combination Long-haul Truck
2008
21
0.014508
Combination Long-haul Truck
2008
22
0.013658
Combination Long-haul Truck
2008
23
0.012814
Combination Long-haul Truck
2008
24
0.012098
Combination Long-haul Truck
2008
25
0.011015
Combination Long-haul Truck
2008
26
0.009616
Combination Long-haul Truck
2008
27
0.008424
Combination Long-haul Truck
2008
28
0.007902
Combination Long-haul Truck
2008
29
0.006811
Combination 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
0
Motorcycle
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
0.049802
Passenger 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
0.050827
Light 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
0
Intercity 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
0.063226
School 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
0.037093
Refuse 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
0.021677
Single 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
0.023879
Motor 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
Combination Short-haul Truck
2008
0
0.034447
Combination Short-haul Truck
2008
1
0.055321
Combination Short-haul Truck
2008
2
0.054839
Combination Short-haul Truck
2008
3
0.066003
Combination Short-haul Truck
2008
4
0.068005
Combination Short-haul Truck
2008
5
0.057968
Combination Short-haul Truck
2008
6
0.050816
Combination Short-haul Truck
2008
7
0.05141
Combination Short-haul Truck
2008
8
0.056442
Combination Short-haul Truck
2008
9
0.04584
Combination Short-haul Truck
2008
10
0.041549
Combination Short-haul Truck
2008
11
0.03568
Combination Short-haul Truck
2008
12
0.034238
Combination Short-haul Truck
2008
13
0.035945
Combination Short-haul Truck
2008
14
0.033507
Combination Short-haul Truck
2008
15
0.035914
Combination Short-haul Truck
2008
16
0.03122
Combination Short-haul Truck
2008
17
0.029221
Combination Short-haul Truck
2008
18
0.028669
Combination Short-haul Truck
2008
19
0.023178
Combination Short-haul Truck
2008
20
0.017858
Combination Short-haul Truck
2008
21
0.017349
Combination Short-haul Truck
2008
22
0.016322
Combination Short-haul Truck
2008
23
0.015356
Combination Short-haul Truck
2008
24
0.015343
Combination Short-haul Truck
2008
25
0.011703
Combination Short-haul Truck
2008
26
0.009676
Combination Short-haul Truck
2008
27
0.00748
Combination Short-haul Truck
2008
28
0.007006
Combination Short-haul Truck
2008
29
0.006033
Combination Short-haul Truck
2008
30
0.005661
Combination Long-haul Truck
2008
0
0.037494
Combination Long-haul Truck
2008
1
0.059672
Combination Long-haul Truck
2008
2
0.05745
Combination Long-haul Truck
2008
3
0.067314
Combination Long-haul Truck
2008
4
0.067788
Combination Long-haul Truck
2008
5
0.058815
Combination Long-haul Truck
2008
6
0.051635
Combination Long-haul Truck
2008
7
0.052084
Combination Long-haul Truck
2008
8
0.055695
Combination Long-haul Truck
2008
9
0.046153
Combination Long-haul Truck
2008
10
0.042764
Combination Long-haul Truck
2008
11
0.035508
Combination Long-haul Truck
2008
12
0.033212
Combination Long-haul Truck
2008
13
0.034413
Combination Long-haul Truck
2008
14
0.033654
Combination Long-haul Truck
2008
15
0.034213
Combination Long-haul Truck
2008
16
0.029101
Combination Long-haul Truck
2008
17
0.02692
Combination Long-haul Truck
2008
18
0.025794
Combination Long-haul Truck
2008
19
0.02252
Combination Long-haul Truck
2008
20
0.017492
Combination Long-haul Truck
2008
21
0.016919
Combination Long-haul Truck
2008
22
0.015798
Combination Long-haul Truck
2008
23
0.015004
Combination Long-haul Truck
2008
24
0.014591
Combination Long-haul Truck
2008
25
0.013126
Combination Long-haul Truck
2008
26
0.010998
Combination Long-haul Truck
2008
27
0.00851
Combination Long-haul Truck
2008
28
0.007982
Combination Long-haul Truck
2008
29
0.006879
Combination Long-haul Truck
2008
30
0.000502



