Table 4-20M: Energy Intensity of Passenger Modes(Kilojoule per passenger-kilometer)
KEY: 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. Passenger-miles were then converted to passenger-kilometers. b Included in passenger car. 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. 1.609344 kilometers = 1 mile. SOURCES Air: Certificated air carriers: Passenger-kilometers: Air Transport Association, Internet site http://www.airlines.org as of July 1, 2004. 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 July 1, 2004. 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. 1995-2003: 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. 1995-2003: 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. 1990-2003: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1. Transit motor bus: American Public Transportation Association, Public Transportation Fact Book (Washington, DC: February 2003), table 70. Amtrak: Amtrak, State and Local Affairs Department, personal communication. Find this web page at:
http://www.bts.gov/publications/national_transportation_statistics/2005/html/table_04_20_m.html |