Energy Intensities of Freight:
US Department of Energy, Center for Transportation Analysis
Note: Great care should be taken when comparing modal energy intensity data among modes. Because of the inherent differences between the transportation modes in the nature of services, routes available, and many additional factors, it is not possible to obtain truly comparable national energy intensities among modes.
Heavy single-unit and combination
Domestic waterborne commerce
|Year||(Btu per vehicle-mile)||(Btu per freight car-mile)||(Btu per ton-mile)||(Btu per ton-mile)|
Average Annual percentage change
Btu per vehicle-mile - Heavy single-unit and combination truck energy use divided by vehicle miles
Energy Use - Department of Transportation, Federal Highway Statistics, Highway Statistics 2003, Table VM-1 and annual editions back to 1996; Department of Transportation, Federal Highway Statistics, Highway Statistics Summary to 1995. Total gallons for other trucks was the difference between total trucks and 2-axle, 4-tire trucks.
Vehicle-miles - Department of Transportation, Federal Highway Statistics, Highway Statistics Summary to 1995, Highway Statistics 2003, Washington, DC, 2004, Table VM1 and annual. (Additional resources: www.fhwa.dot.gov)
Btu per freight car-mile - Class I rail energy use divided by freight car-miles.
Both Energy use and Freight car miles - Association of American Railroads, Railroad Facts, 2004 Edition, Washington, DC, October 2004, pp. 27, 28, 33, 34, 36, 49, 51, 61.
(Additional resources: www.aar.org)
Btu per ton-mile - Domestic waterborne commerce energy use divided by ton-miles.
Domestic Tonnage statistics - All movements between U.S. ports, continental and noncontiguous, and on the inland rivers, canals, and connecting channels of the U.S., Puerto Rico, and the Virgin Islands, excluding the Panama Canal. Beginning in 1996, fish was excluded for internal and inthrall port domestic traffic.
Energy Use - DOE, EIA, Fuel Oil and Kerosene Sales 2003, Table 23. Adjusted sales of distillate and residual fuel oil for vessel bunkering. (This may include some amounts of bunker fuels used for recreational purposes.)
Ton-miles - U.S. Department of the Army, Army Corps of Engineers, Waterborne Commerce of the United States, Calenday Year 2002, Part 5: National Summaries, New Orleans, LA, 2004, Table 1-1, p. 1-3, and annual. (Additional resources: www.wrc-ndc.usace.army.mil/ndc)
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