Table 4-20: Energy Intensity of Passenger Modes (Btu per passenger-mile)
Table 4-20: Energy Intensity of Passenger Modes (Btu per passenger-mile)
| 1960 | 1965 | 1970 | 1975 | 1980 | 1985 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air, certificated carrier | ||||||||||||||||||
| Domestic operations | 8,633 | 10,118 | 10,185 | 7,746 | 5,727 | 5,047 | 4,932 | 4,671 | 4,564 | 4,558 | 4,444 | 4,382 | 4,183 | 4,166 | 4,123 | 4,049 | R3,942 | 3,940 |
| International operations | 9,199 | 10,292 | 10,986 | 8,465 | 4,339 | 5,103 | 4,546 | 4,609 | 4,258 | 4,099 | 4,145 | 4,173 | 4,108 | 4,168 | 4,278 | 4,123 | 4,009 | 4,126 |
| Highwaya | ||||||||||||||||||
| Passenger car | 4,495 | 4,455 | 4,841 | 4,743 | 4,348 | 4,267 | 3,812 | 3,654 | 3,703 | 3,785 | 3,771 | 3,721 | 3,688 | 3,657 | 3,637 | 3,672 | 3,578 | U |
| Other 2-axle 4-tire vehicle | N | N | 6,810 | 6,571 | 5,709 | 4,971 | 4,451 | 4,277 | 4,256 | 4,275 | 4,345 | 4,538 | 4,541 | 4,564 | 4,569 | 4,612 | 4,495 | U |
| Motorcycle | b | b | 2,500 | 2,354 | 2,125 | 1,896 | 1,990 | 1,917 | 1,990 | 2,063 | 2,135 | 2,274 | 2,271 | 2,273 | 2,273 | 2,273 | 2,273 | U |
| Transit motor bus | N | N | N | N | 2,742 | 3,396 | 3,723 | 3,767 | 4,038 | 3,944 | 4,162 | 4,155 | 4,196 | 4,228 | 4,133 | 4,044 | P4,147 | U |
| Amtrak | N | N | N | 2,383 | 2,164 | 2,094 | 2,064 | 1,978 | 2,035 | 2,023 | 1,935 | 1,838 | 2,148 | 2,200 | 2,138 | 2,107 | 2,134 | U |
KEY: Btu = British thermal unit; N = data do not exist; P = preliminary; R = revised; U = data are not available.
a For 1995 and subsequent years, highway passenger-miles were taken directly from Highway Statistics rather than derived from vehicle-miles and average occupancy, as is the case for 1960-1994.
b Included in passenger car.
NOTES
To calculate total Btu, multiply fuel consumed (see tables 4-21, 4-22, 4-24, 4-25) by 135,000 Btu/gallon for air carrier, 125,000 Btu/gallon for passenger car, other 2-axle 4-tire vehicle, and motorcycle, 138,700 Btu/gallon for transit motor bus and Amtrak diesel consumption, and 3,412 Btu/KwH for Amtrak electric consumption.
SOURCES
Air:
Certificated air carriers:
Passenger-miles:
Air Transport Association, Internet site http://www.air-transport.org/public/industry as of Aug. 30, 2002.
Fuel consumed:
U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Internet site http://www.bts.gov/oai/fuel/fuelyearly.html as of Aug. 30, 2002.
Highway:
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.
1995-2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.
Other 2-axle 4-tire vehicle:
1970-94: Ibid., Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.
1995-2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.
Motorcycle:
1970-85: Ibid., Highway Statistics Summary to 1985, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.
1990-2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.
Transit motor bus:
American Public Transportation Association, Public Transportation Fact Book (Washington, DC: February 2002), tables 30 and 65.
Amtrak:
Amtrak, State and Local Affairs Department, personal communication.