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United States Department of Transportation United States Department of Transportation

Energy Intensity of Light Duty Vehicles and Motorcycles

Dataset Table:

Vehicle-miles (millions) Light duty vehicle, short wheel base (a,b) Light duty vehicle, long wheel base (b) Motorcycle (a) Passenger-miles (millions) Light duty vehicle, short wheel base (a,b) Light duty vehicle, long wheel base (b) Motorcycle (a) Average occupancy rate Light duty vehicle, short wheel base (a,b) Light duty vehicle, long wheel base (b) Motorcycle (a) Fuel consumed (million gallons) Light duty vehicle, short wheel base (a,b) Light duty vehicle, long wheel base (b) Motorcycle (a) Energy intensity (Btu/passenger-mile) (b) Light duty vehicle, short wheel base (a,b) Light duty vehicle, long wheel base (b) Motorcycle (a)
1960 587,000 N U 1,145,000 N U 1.95 N U 41,171 N U 4,495 N U
1965 723,000 N U 1,395,000 N U 1.93 N U 49,723 N U 4,455 N U
1970 917,000 123,000 3,000 1,751,000 226,000 3,000 1.91 1.84 1.00 67,819 12,313 60 4,841 6,810 2,500
1975 1,034,000 201,000 5,600 1,954,000 363,000 6,000 1.89 1.81 1.07 74,140 19,081 113 4,743 6,571 2,354
1980 1,112,000 291,000 10,200 2,012,000 521,000 12,000 1.81 1.79 1.18 69,982 23,796 204 4,348 5,709 2,125
1985 1,247,000 391,000 9,100 2,094,000 688,000 12,000 1.68 1.76 1.32 71,518 27,363 182 4,269 4,971 1,896
1990 1,408,000 575,000 9,600 2,282,000 1,000,000 12,000 1.62 1.74 1.25 69,568 35,611 191 3,811 4,451 1,990
1991 1,358,000 649,000 9,200 2,200,000 1,117,000 12,000 1.62 1.72 1.30 64,317 38,217 184 3,654 4,277 1,917
1992 1,372,000 707,000 9,600 2,208,000 1,202,000 12,000 1.61 1.70 1.25 65,436 40,929 191 3,704 4,256 1,990
1993 1,375,000 746,000 9,900 2,213,000 1,253,000 12,000 1.61 1.68 1.21 67,048 42,851 198 3,787 4,275 2,063
1994 1,406,000 765,000 10,200 2,250,000 1,269,000 12,000 1.60 1.66 1.18 67,874 44,112 205 3,771 4,345 2,135
1995 1,438,000 790,000 9,800 2,287,000 1,256,000 11,000 1.59 1.59 1.12 68,072 45,605 196 3,721 4,539 2,227
1996 1,470,000 817,000 9,900 2,337,000 1,298,000 11,000 1.59 1.59 1.11 69,221 47,354 198 3,702 4,560 2,250
1997 1,503,000 851,000 10,100 2,389,000 1,353,000 11,000 1.59 1.59 1.09 69,892 49,388 202 3,657 4,563 2,295
1998 1,550,000 868,000 10,300 2,464,000 1,381,000 11,000 1.59 1.59 1.07 71,695 50,462 206 3,637 4,568 2,341
1999 1,569,000 901,000 10,600 2,495,000 1,433,000 12,000 1.59 1.59 1.13 73,283 52,859 212 3,671 4,611 2,205
2000 1,600,287 923,059 10,469 2,544,457 1,467,664 11,516 1.59 1.59 1.10 73,065 52,939 209 3,589 4,509 2,273
2001 1,627,365 942,614 9,633 2,556,481 1,678,853 11,760 1.57 1.78 1.22 73,559 53,522 193 3,597 3,985 2,049
2002 1,658,474 966,034 9,552 2,620,389 1,674,792 12,131 1.58 1.73 1.27 75,471 55,220 191 3,600 4,121 1,969
2003 1,671,967 984,020 9,576 2,641,885 1,706,103 12,163 1.58 1.73 1.27 75,455 60,758 192 3,570 4,452 1,969
2004 1,699,890 1,027,164 10,122 2,685,827 1,780,771 12,855 1.58 1.73 1.27 75,402 63,417 202 3,509 4,452 1,969
2005 1,708,421 1,041,051 10,454 2,699,305 1,804,848 13,277 1.58 1.73 1.27 77,418 58,869 189 3,585 4,077 1,784
2006 1,690,534 1,082,490 12,049 2,671,044 1,876,690 15,303 1.58 1.73 1.27 75,009 60,685 221 3,510 4,042 1,805
2007 2,104,416 586,618 21,396 3,324,977 1,017,007 27,173 1.58 1.73 1.27 89,577 36,910 475 3,368 4,537 2,185
2008 2,024,757 605,456 20,811 3,199,116 1,049,667 26,430 1.58 1.73 1.27 85,589 34,925 489 3,344 4,159 2,315
2009 2,015,714 617,534 20,822 2,800,603 824,994 22,428 1.39 1.34 1.08 85,658 35,711 482 3,823 5,411 2,688
2010 2,025,745 622,712 18,513 2,814,540 831,912 19,941 1.39 1.34 1.08 86,789 36,251 427 3,854 5,447 2,675
2011 2,046,282 604,175 18,542 2,843,075 807,148 19,972 1.39 1.34 1.08 88,359 35,335 426 3,885 5,472 2,669
2012 2,062,828 601,232 21,385 2,866,062 803,216 23,034 1.39 1.34 1.08 88,600 35,114 491 3,864 5,465 2,665
2013 2,074,423 603,307 20,366 2,882,173 805,988 21,937 1.39 1.34 1.08 88,611 35,159 468 3,843 5,453 2,665
2014 2,072,071 638,484 19,970 2,878,905 852,983 21,510 1.39 1.34 1.08 89,301 37,343 459 3,877 5,472 2,665
2015 2,147,840 631,852 19,606 2,984,178 844,123 21,118 1.39 1.34 1.08 90,018 36,436 448 3,771 5,396 2,651

Embedded Dataset Excel:

Dataset Excel:

table_04_22-q118.xlsx

Notes:

Data for 2007-15 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. The new category Light duty vehicle, long wheel base includes large passenger cars, vans, pickup trucks, and sport/utility vehicles with wheelbases (WB) larger than 121 inches. 

In 1995, the U.S. Department of Transportation, Federal Highway Administration revised its vehicle type categories for 1993 and later data. These new categories include passenger car, other 2-axle 4-tire vehicle, single-unit 2-axle 6-tire or more truck, and combination truck. Other 2-axle 4-tire vehicle includes vans, pickup trucks, and sport utility vehicles.  In previous years, some minivans and sport utility vehicles were included in the passenger car category.  Single-unit 2-axle 6-tire or more trucks are on a single frame with at least 2 axles and 6 tires.  Pre-1993 data have been reassigned to the closest available category.

For 1970-94, the unrevised motorcycle fuel consumed is subtracted from the combined passenger car and motorcycle fuel consumed from VM-201A.

Vehicle-miles and Passenger-miles data for 1960 through 1999 have been rounded to the nearest billion miles.

Description:

KEY: Btu = British thermal unit; N = data do not exist; U = data are not available.

a Motorcycle was included in Light duty vehicle, short wheel base (previously Passenger car) in 1960 and 1965.
b 1960-99 data are for Passenger car and Other 2-axle, 4-tire vehicles, respectively. The data from 1960-2006 are not comparable to the data from 2007-15.
c Energy Intensity (Btu/passenger-mile) is calculated by converting the fuel consumption in gallons to the energy equivalent Btu units and dividing by the passenger-miles. The heat equivalent factor used for Btu conversion is 125,000 Btus/gallon.

Source:

Vehicle-miles:
Passenger car:
1960-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, table VM-201A, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Oct. 6, 2011. 
1995-2006: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Oct. 6, 2011.
Light duty vehicle, short wheel base:
2007-2015: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Mar. 28, 2017.
Other 2-axle 4-tire vehicle:
1970-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, table VM-201A, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Oct. 6, 2011. 
1995-2006: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Oct. 6, 2011.
Light duty vehicle, long wheel base:
2007-2015: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Mar. 28, 2017.
Motorcycle:
1970-94: Ibid., Highway Statistics, Summary to 1985 (Washington, DC: 1986), table VM-201A.
For 1970-94, the unrevised motorcycle vehicle-miles are subtracted from the combined passenger car and motorcycle vehicle-miles from VM-201A.
1995-2015: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Mar. 28, 2017.
Passenger-miles: 
1960-97:  Vehicle-miles multiplied by vehicle occupancy rates.
1998-2015:  Ibid., Highway Statistics (Washington, DC:  Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Mar. 28, 2017.
Fuel consumed:
1960-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.
1995-2015: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of Mar. 28, 2017.