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TABLE 1-11 Commercial Freight Activity for All Modes by Weight: 1993, 1997, and 2002

Millions of tons

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NOTES: 2002 data are preliminary. Although final 2002 Commodity Flow Survey data were available when this report was prepared, final 2002 supplemental data were still forthcoming. Thus, all 2002 data could not be updated for this report. Multimodal includes the traditional intermodal combination of truck and rail plus truck and water; rail and water; parcel, postal, and courier service; and other multiple modes for the same shipment. Preliminary supplemental estimates cover logging, farm-based truck shipments, truck imports from Canada and Mexico, rail imports from Canada and Mexico, air cargo imports and exports, water imports and exports, and pipeline crude and petroleum products shipments. These estimates exclude other supplemental categories of goods movement for which no reasonable basis for an estimate currently exists, including government shipments; the service, retail, and construction sectors; transportation service providers; household goods movers; and municipal solid waste providers.

SOURCES: Commodity Flow Survey data—U.S. Department of Transportation (USDOT), Research and Innovative Technology Administration, Bureau of Transportation Statistics (BTS) and U.S. Department of Commerce, U.S. Census Bureau, Commodity Flow Survey (Washington, DC: 2003). Supplemental estimates—USDOT, BTS, Freight Shipments in America (April 2004), available at http://www.bts.gov/, as of May 2005.