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Tonnage on Highways, Railroads, and Inland Waterways: 2007 Map

U.S. map showing large rail flows from Wyoming to the Midwest, large waterborne flows on the Mississippi and Ohio Rivers, and truck flows throughout the country.

High-Resolution Images

Sources

Highways: U.S. Department of Transportation, Federal Highway Administration, Freight Analysis Framework, version 3.1, 2010. Rail: Based on Surface Transportation Board, Annual Carload Waybill Sample and rail freight flow assignments done by Oak Ridge National Laboratory. Inland Waterways: U.S. Army Corps of Engineers (USACE), Annual Vessel Operating Activity and Lock Performance Monitoring System data, as processed for USACE by the Tennessee Valley Authority; and USACE, Institute for Water Resources, Waterborne Foreign Trade Data, Water flow assignments done by Oak Ridge National Laboratory.

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