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TABLE 14-7b Passenger-Miles of Travel, Energy
Consumption, and Energy Efficiency: 1992–2002
Excel | CSV
| 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.
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