Table 5-10. Energy Intensities of Domestic Freight Transportation Modes: 1980-2005 (Historical)
 |
1980 | 1990 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
|---|---|---|---|---|---|---|---|---|
| Highway (Btuper vehicle-mile) | 24,757 | 22,795 | 23,448 | 23,023 | 23,461 | (R) 22,461 | 20,540 | 20,539 |
| Railroad (Class I) (Btu per freight car-mile) | 18,742 | 16,619 | 14,917 | 15,108 | 15,003 | 15,016 | 15,274 | 15,152 |
| Railroad (Class I) (Btu per ton-mile) | 597 | 420 | 352 | 346 | 345 | 344 | 341 | 337 |
| Domestic water(Btu per ton-mile) | 358 | 387 | 473 | 460 | 470 | 417 | 510 | 514 |
Key: Btu = British thermal unit
Source: Oak Ridge National Laboratory, Transportation Energy Data Book: Edition 25 (Oak Ridge, TN: 2007).
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