TABLE 2-9 Commercial Freight Activity for All Modes by Weight: 1993, 1997, and 2002

TABLE 2-9 Commercial Freight Activity for All Modes by Weight: 1993, 1997, and 2002

Millions of tons

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  1993 1997 2002
Truck 7,275 8,836 9,197
Rail 1,580 1,612 1,895
Water 2,128 2,281 2,345
Air (includes truck and air) 7 10 10
Oil Pipeline 1,595 1,448 1,656
Multimodal combinations 231 227 213
Other and unknown modes 541 440 499
Total 13,357 14,854 15,815
Commodity Flow Survey 9,688 11,090 11,573
Percentage of total 72.5 74.7 73.2
Supplemental estimates 3,669 3,764 4,242
Percentage of total 27.5 25.3 26.8

NOTES: 2002 Commodity Flow Survey and supplemental data are preliminary. 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. 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, Bureau of Transportation Statistics (BTS) and U.S. Department of Commerce, U.S. Census Bureau, Commodity Flow Survey (Washington, DC: 2003). Supplemental estimates-MacroSys Research and Technology calculations for BTS based on data compiled from a variety of sources.