Table 4-20: Energy Intensity of Passenger Modes

Table 4-20: Energy Intensity of Passenger Modes

(Btu per passenger-mile)

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  1960 1965 1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
AirR                                  
Certificated air 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 R4,166 4,123 4,049 3,944
International operations 9,199 10,292 10,986 8,465 R4,339 5,103 4,546 4,609 4,258 4,099 4,145 4,173 4,108 4,168 4,278 4,123 4,009
Highwayb                                  
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 R3,688 3,657 R3,637 3,672 3,578
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 R4,538 R4,541 R4,564 R4,569 4,612 4,495
Motorcycle a a 2,500 2,354 2,125 1,896 1,990 1,917 1,990 2,063 2,135 R2,274 R2,271 R2,273 R2,273 2,273 2,273
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 R4,133 P4,044 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

KEY: Btu = British thermal unit; N = data do not exist; P = preliminary; R = revised; U = unavailable.

a Included in passenger car.

b 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.

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, and 138,700 Btu/gallon for transit motor bus and Amtrak.

SOURCES:

Air:

Certificated air carriers:

Passenger-miles:

Air Transport Association, Internet site http://www.air-transport.org/public/industry as of Aug. 22, 2001.

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. 22, 2001.

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: March 2001), tables 30 and 65.

Amtrak:

Amtrak, State and Local Affairs Department, personal communication.