BTS | Table 4-20M: Energy Intensity of Passenger Modes

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Table 4-20M: Energy Intensity of Passenger Modes

(Kilojoules per passenger-kilometer)

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	1960	1965	1970	1975	1980	1985	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Air^R
Certificated air carrier
Domestic operations	5,659	6,633	6,677	5,078	3,755	3,308	3,233	3,062	2,992	2,988	2,913	2,873	2,742	^R2,731	2,703	2,655	2,585
International operations	6,031	6,748	7,202	5,550	^R2,845	3,345	2,980	3,022	2,792	2,687	2,718	2,736	2,693	2,733	2,804	2,703	2,628
Highway^b
Passenger car	2,947	2,921	3,174	3,109	2,850	2,797	2,499	2,395	2,428	2,481	2,472	2,439	^R2,418	2,397	^R2,384	2,407	2,346
Other 2-axle 4-tire vehicle	N	N	4,465	4,308	3,743	3,259	2,918	2,804	2,790	2,803	2,849	^R2,975	^R2,977	^R2,992	^R2,995	3,024	2,947
Motorcycle	^a	^a	1,639	1,543	1,393	1,243	1,305	1,257	1,305	1,352	1,400	^R1,491	^R1,489	^R1,490	^R1,490	1,490	1,490
Transit motor bus	N	N	N	N	1,798	2,226	2,441	2,470	2,647	2,586	2,728	2,724	2,751	2,772	^R2,710	^P2,651	U
Amtrak	N	N	N	1,562	1,419	1,373	1,353	1,297	1,334	1,326	1,269	1,205	1,408	1,442	1,402	1,381	1,399

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

^a Included in passenger car.

^b For 1995 and subsequent years, highway passenger-kilometers were taken directly from Highway Statistics rather than derived from vehicle-kilometers and average occupancy, as is the case for 1960-1994.

NOTES: To calculate total joules, multiply fuel consumed (see tables 4-21, 4-22, 4-24, 4-25) by 37,626,700 joules/liter for air carrier, 34,839,537 joules/liter for passenger car, other 2-axle 4-tire vehicle, and motorcycle, and 38,657,950 joules/liter for transit motor bus and Amtrak.

Numbers may differ slightly from previous year's metric tables because a higher precision conversion factor was used.

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 communications.