Freight Facts and Figures 2011
Table 5-11. Energy Intensities of Domestic Freight Transportation Modes: 2007-2009
Energy intensity is the amount of energy used in producing a given level of output or activity, in this case vehicle miles and ton miles. In recent years, the energy intensity of trucking has remained stable, while rail has improved slightly.
 |
2007 | 2008 | 2009 |
|---|---|---|---|
| Highway1 (Btu per vehicle mile) | (R) 21,238 | (R) 21,008 | 21,127 |
| Railroad (Class I) (Btu per freight car mile) | 14,846 | 14,573 | 13,907 |
| Railroad (Class I) (Btu per ton mile) | 320 | 305 | 291 |
Key: Btu = British thermal unit; R = revised.
1Based on a new methodology, FHWA revised its annual vehicle miles travelled, number of vehicles, and fuel economy data beginning with 2007. Energy intensity data is based on FHWA fuel use methodology. Information on the new methodology is available at www.fhwa.dot.gov/policyinformation/statistics.cfm. Data in this table should not be compared to those in previous editions of Freight Facts and Figures.
Source:
Oak Ridge National Laboratory, Transportation Energy Data Book: Edition 30 (Oak Ridge, TN: annual issues), table 2.15, available at cta.ornl.gov/data/index.shtml as of August 19, 2011.
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