Table 4-6: Energy Consumption by Mode of Transportation(Trillion Btu)
KEY: Btu = British thermal unit; N = data do not exist; P = preliminary; R = revised; U = data are unavailable. a Domestic operations only. b Includes fuel used in air taxi operations, but not commuter operations. c Prior to 1984, excludes commuter rail, automated guideway, ferryboat, demand responsive vehicles, and most rural and smaller systems. d Gasoline and all other nondiesel fuels such as liquefied natural gas, methanol, and propane, except compressed natural gas. e Included in other single-unit 2-axle 6-tire or more truck category. NOTES The following conversion rates were used: Jet fuel = 135,000 Btu/gallon Compressed natural gas = 138,700 Btu/gallon Aviation gasoline = 120,200 Btu/gallon Distillate fuel = 138,700 Btu/gallon Automotive gasoline = 125,000 Btu/gallon Residual fuel = 149,700 Btu/gallon Diesel motor fuel = 138,700 Btu/gallon Natural gas = 1,031 Btu/ft3 Electricity 1kWh = 3,412 Btu, negating electrical system losses. To include approximate electrical system losses, multiply this conversion factor by 3. SOURCES Air: Certificated air carriers: 1960-2003: 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 Dec. 23, 2004. General aviation: 1960-70: U.S. Department of Transportation, Federal Aviation Administration, FAA Statistical Handbook of Aviation - 1972 edition (Washington, DC: 1973), table 9.12. 1975-93: Ibid., General Aviation and Air Taxi Activity Survey (Washington, DC: Annual issues), table 5.1, and similar tables in earlier editions. 1994-2003: Ibid., FAA Aerospace Forecasts Fiscal Years 2004-2015 (Washington, DC: Mar. 2004), table 34 and similar tables in earlier editions. Highway: 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. (Revised data obtained from Internet site http://www.fhwa.dot.gov/ohim/ohimstat.htm as of August 2001). 1995-2003: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1. Transit: Electricity / motor fuel / compressed natural gas: 1960-2002: American Public Transportation Association, 2004 Public Transportation Fact Book (Washington, DC: March 2004), tables 33, 34, 35, and similar tables in earlier editions. Rail: 1960-2003: Association of American Railroads, Railroad Facts (Washington, DC: 2004), p. 40. Amtrak: 1975-2001: Amtrak, Energy Management Department, personal communication. Water: Residual and distillate / diesel fuel oil: 1960-80: American Petroleum Institute, Basic Petroleum Data Book (Washington, DC: Annual issues), tables 10, 10a, 12, and 12a. 1985-2003: U.S. Department of Energy, Energy Information Administration, Fuel Oil and Kerosene Sales (Washington, DC: Annual issues), tables 2, 4, and similar tables in earlier editions. Gasoline: 1970-2003: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table MF-24 and similar tables in earlier editions. Pipeline: 1960-2003: U.S. Department of Energy, Natural Gas Annual 2003, DOE/EIA-0131(03) (Washington, DC: Dec. 2004), table 15 and similar tables in earlier editions. |