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 2001 2002 2003 2004 2005 2006
Air, certificated carrier                                              
Domestic operations 8,633 10,118 10,185 7,746 5,742 5,047 4,932 4,671 4,564 4,558 4,444 4,382 4,183 4,166 4,123 4,049 3,883 3,890 3,596 (R) 3,496 (R) 3,410 (R) 3,222 3,098
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 3,833 3,965 3,920 (R) 4,178 (R) 3,888 (R) 3,813 3,691
Highwaya                                              
Passenger car 4,495 4,455 4,841 4,743 4,348 4,269 3,811 3,654 3,703 3,785 3,771 3,721 3,688 3,657 3,637 3,672 3,589 3,597 3,600 3,570 3,509 (R) 3,585 3,525
Other 2-axle 4-tire vehicle N N 6,810 6,571 5,709 4,971 4,539 4,277 4,256 4,275 4,345 4,538 4,541 4,564 4,569 4,612 4,509 3,985 4,121 4,452 4,452 (R) 4,077 4,016
Motorcycle b b 2,500 2,354 2,125 1,896 2,227 1,917 1,990 2,063 2,135 2,274 2,271 2,273 2,273 2,273 2,273 2,049 1,969 1,969 1,969 (R) 1,784 1,754
Transit motor bus N N N N 2,742 3,389 3,723 3,767 4,038 3,944 4,162 4,155 4,196 4,228 4,133 4,044 4,147 3,698 3,550 3,514 3,572 3,393 3,262
Amtrak N N N 2,383 2,148 2,089 2,066 1,978 2,035 2,023 1,935 1,838 2,153 2,200 2,138 2,107 2,134 2,100 U U U U U

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

NOTE

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:

1960-80: Air Transport Association, Internet site http://www.airlines.org as of Aug. 30, 2004.

1985-2006: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics (Washington DC: Annual December issues).

Fuel consumed:

U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information, available at http://www.bts.gov/oai/fuel/fuelyearly.html as of Mar. 27, 2008.

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.

1995-2006: 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.

1995-2006: 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.

1990-2006: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.

Transit motor bus:

American Public Transportation Association, 2008 Public Transportation Fact Book, Historical Tables (Washington, DC: Annual issues), tables 2 and 28, and similar tables in earlier editions.

Amtrak:

Amtrak, State and Local Affairs Department, personal communication, Apr. 21, 2008