Table 4-22M: Energy Intensity of Passenger Cars, Other 2-Axle 4-Tire Vehicles, and Motorcycles
Table 4-22M: Energy Intensity of Passenger Cars, Other 2-Axle 4-Tire Vehicles, and Motorcycles
1960 | 1965 | 1970 | 1975 | 1980 | 1985 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | (R) 2006 | 2007 | 2008 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Vehicle-kilometers (millions) | |||||||||||||||||||||||||
Passenger cara | 944,685 | 1,163,556 | 1,475,768 | 1,664,062 | 1,789,591 | 2,006,852 | 2,265,956 | 2,185,489 | 2,208,020 | 2,212,848 | 2,262,738 | 2,314,237 | 2,365,736 | 2,418,844 | 2,494,483 | 2,525,061 | 2,575,412 | 2,620,546 | 2,669,055 | 2,690,950 | 2,735,708 | 2,749,437 | 2,720,651 | 2,691,575 | 2,600,459 |
Other 2-axle 4-tire vehicle | N | N | 197,949 | 323,478 | 468,319 | 629,254 | 925,373 | 1,044,464 | 1,137,806 | 1,200,571 | 1,231,148 | 1,271,382 | 1,314,834 | 1,369,552 | 1,396,911 | 1,450,019 | 1,485,519 | 1,517,945 | 1,554,681 | 1,583,746 | 1,653,060 | 1,675,409 | 1,742,099 | 1,790,026 | 1,784,123 |
Motorcyclea | U | U | 4,828 | 9,012 | 16,415 | 14,645 | 15,450 | 14,806 | 15,450 | 15,933 | 16,415 | 15,772 | 15,933 | 16,254 | 16,576 | 17,059 | 16,848 | 15,512 | 15,372 | 15,413 | 16,290 | 16,824 | 19,391 | 21,920 | 23,310 |
Passenger-kilometers (millions) | |||||||||||||||||||||||||
Passenger cara | 1,842,699 | 2,245,035 | 2,817,961 | 3,144,658 | 3,238,000 | 3,369,966 | 3,672,523 | 3,540,557 | 3,553,432 | 3,561,478 | 3,621,024 | 3,680,570 | 3,761,037 | 3,844,723 | 3,965,424 | 4,015,313 | 4,094,907 | 4,114,257 | 4,217,107 | 4,251,702 | 4,322,420 | 4,344,110 | 4,298,629 | 4,252,689 | 4,108,725 |
Other 2-axle 4-tire vehicle | N | N | 363,712 | 584,192 | 838,468 | 1,107,229 | 1,609,344 | 1,797,637 | 1,934,431 | 2,016,508 | 2,042,258 | 2,021,336 | 2,088,929 | 2,177,442 | 2,222,504 | 2,306,190 | 2,361,976 | 2,701,852 | 2,695,316 | 2,745,707 | 2,865,873 | 2,904,621 | 3,020,240 | 3,103,329 | 3,093,096 |
Motorcyclea | U | U | 4,828 | 9,656 | 19,312 | 19,312 | 19,312 | 19,312 | 19,312 | 19,312 | 19,312 | 17,703 | 17,703 | 17,703 | 17,703 | 19,312 | 18,533 | 18,926 | 19,523 | 19,574 | 20,688 | 21,367 | 24,628 | 27,839 | 29,603 |
Average occupancy rate | |||||||||||||||||||||||||
Passenger cara | 1.95 | 1.93 | 1.91 | 1.89 | 1.81 | 1.68 | 1.62 | 1.62 | 1.61 | 1.61 | 1.60 | 1.59 | 1.59 | 1.59 | 1.59 | 1.59 | 1.59 | 1.57 | 1.58 | 1.58 | 1.58 | 1.58 | 1.58 | 1.58 | 1.58 |
Other 2-axle 4-tire vehicle | N | N | 1.84 | 1.81 | 1.79 | 1.76 | 1.74 | 1.72 | 1.70 | 1.68 | 1.66 | 1.59 | 1.59 | 1.59 | 1.59 | 1.59 | 1.59 | 1.78 | 1.73 | 1.73 | 1.73 | 1.73 | 1.73 | 1.73 | 1.73 |
Motorcyclea | U | U | 1.00 | 1.07 | 1.18 | 1.32 | 1.25 | 1.30 | 1.25 | 1.21 | 1.18 | 1.12 | 1.11 | 1.09 | 1.07 | 1.13 | 1.10 | 1.22 | 1.27 | 1.27 | 1.27 | 1.27 | 1.27 | 1.27 | 1.27 |
Fuel consumed (million liters) | |||||||||||||||||||||||||
Passenger cara | 155,849 | 188,222 | 256,723 | 280,650 | 264,911 | 270,725 | 263,344 | 243,466 | 247,702 | 253,804 | 256,931 | 257,681 | 262,030 | 264,570 | 271,395 | 277,406 | 276,582 | 278,450 | 285,690 | 285,627 | 285,427 | (R) 293,061 | 283,940 | 281,548 | 270,646 |
Other 2-axle 4-tire vehicle | N | N | 46,610 | 72,229 | 90,078 | 103,580 | 134,802 | 144,667 | 154,933 | 162,209 | 166,982 | 172,634 | 179,254 | 186,954 | 191,019 | 200,093 | 200,395 | 202,602 | 209,031 | 229,994 | 240,060 | (R) 222,844 | 229,719 | 234,076 | 231,663 |
Motorcyclea | U | U | 227 | 428 | 772 | 689 | 723 | 697 | 723 | 750 | 776 | 742 | 750 | 765 | 780 | 801 | 793 | 730 | 723 | 725 | 766 | (R) 717 | 837 | 917 | 970 |
Energy intensity (Btu/passenger-kilometer)b | |||||||||||||||||||||||||
Passenger cara | 2,793 | 2,768 | 3,008 | 2,947 | 2,702 | 2,653 | 2,368 | 2,271 | 2,302 | 2,353 | 2,343 | 2,312 | 2,301 | 2,272 | 2,260 | 2,281 | 2,230 | 2,235 | 2,237 | 2,218 | 2,181 | (R) 2,228 | 2,181 | 2,186 | 2,175 |
Other 2-axle 4-tire vehicle | N | N | 4,232 | 4,083 | 3,548 | 3,089 | 2,766 | 2,657 | 2,645 | 2,656 | 2,700 | 2,820 | 2,834 | 2,835 | 2,838 | 2,865 | 2,802 | 2,476 | 2,561 | 2,766 | 2,766 | (R) 2,533 | 2,512 | 2,491 | 2,473 |
Motorcyclea | U | U | 1,553 | 1,463 | 1,320 | 1,178 | 1,236 | 1,191 | 1,236 | 1,282 | 1,327 | 1,384 | 1,398 | 1,426 | 1,455 | 1,370 | 1,412 | 1,273 | 1,223 | 1,223 | 1,223 | (R) 1,109 | 1,122 | 1,088 | 1,082 |
KEY: Btu = British thermal unit; N = data do not exist; R = revised; U = data are unavailable.
a Motorcycle was included in passenger car in 1960 and 1965.
b Energy Intensity (Btu/passenger-kilometer) is calculated by converting the fuel consumption in liters to the energy equivalent Btu units and dividing by the passenger-miles. The heat equivalent factor used for Btu conversion is 33,021.5046605 Btus/liter.
NOTES
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.
Vehicle-miles and passenger-miles data for 1960 through 1999 have been rounded to the nearest billion miles.
For 1970-94, the unrevised motorcycle fuel consumed is subtracted from the combined passenger car and motorcycle fuel consumed from VM-201A.
1 mile = 1.609344 kilometers
1 gallon = 3.785412 liters
SOURCES
Vehicle-miles:
Passenger car:
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.
1995-2008: Ibid., Highway Statistics (Washington, DC: Annual issues), Table VM-1, available at http://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.cfm as of Feb. 17, 2010.
Other 2-axle 4-tire vehicle:
1970-94: Ibid., Highway Statistics, Summary to 1985 (Washington, DC: 1986), Table VM-201A.
1995-2008: Ibid., Highway Statistics (Washington, DC: Annual issues), Table VM-1, available at http://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.cfm as of Feb. 17, 2010.
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.
1995-2008: Ibid., Highway Statistics (Washington, DC: Annual issues), Table VM-1, available at http://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.cfm as of Feb. 17, 2010.
Passenger-miles:
1960-97: Vehicle-miles multiplied by vehicle occupancy rates.
1998-2008: Ibid., Highway Statistics (Washington, DC: Annual issues), Table VM-1, available at http://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.cfm as of Feb. 17, 2010.
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.
1995-2008: Ibid., Highway Statistics (Washington, DC: Annual issues), Table VM-1, available at http://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.cfm as of Feb. 17, 2010.