Figure 2-7 - Domestic Freight Ton-Miles by Mode: 1991-2001
Figure 2-7 - Domestic Freight Ton-Miles by Mode: 1991-2001
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SOURCES: Air, oil pipeline, and water—U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), National Transportation Statistics 2002, table 1-44 revised, available at http://www.bts.gov/, as of October 2003. Truck, rail, natural gas pipeline— USDOT, BTS, calculations based on data from various sources. See table 2-7 for details.