TABLE 14-7b Passenger-Miles of Travel, Energy Consumption, and Energy Efficiency: 1992-2002

TABLE 14-7b Passenger-Miles of Travel, Energy Consumption, and Energy Efficiency: 1992-2002

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  1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
Passenger-miles of travel (billions) 3,925 3,996 4,082 4,120 4,247 4,376 4,497 4,620 4,733 4,916 4,967
Energy use (trillions of Btu) 14,668 15,123 15,404 15,631 16,033 16,399 16,787 17,416 17,387 17,437 17,735
Energy efficiency (pmt/thousand Btu) 0.268 0.264 0.265 0.264 0.265 0.267 0.268 0.265 0.272 0.282 0.280

KEY: Btu = British thermal units; pmt = passenger-miles of travel.

NOTES: Pmt is the sum of pmt for certificated air carriers (domestic), passenger cars, motorcycles, light trucks (other 2-axle, 4-tire vehicles), buses, transit (excluding bus), and intercity/Amtrak rail. Energy consumption is the sum of usage by commercial aviation (passenger), gasoline fuel (passenger cars, light trucks, and buses), and Amtrak (which includes electricity and distillate/diesel fuels). Passenger commercial domestic aviation fuel consumption data were estimated from total commercial domestic aviation fuel consumption data. General aviation data were excluded because passenger and freight operations data cannot be disaggregated.

SOURCES: Pmt and energy use (except transit)—U.S. Department of Transportation (USDOT), Research and Innovative Technology Administration, Bureau of Transportation Statistics (BTS), calculations based on USDOT, BTS, National Transportation Statistics 2004, tables 1-34, 4-6, and 4-8, available at http://www.bts.gov/, as of March 2005. Transit energy use—American Public Transportation Association, Public Transportation Fact Book 2005 (Washington, DC: 2005), tables 34 and 35.