Table 24 Weight of U.S. International Merchandise Trade by Mode of Transportation: 2003

Table 24 Weight of U.S. International Merchandise Trade by Mode of Transportation: 2003

(Thousands of short tons)

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  Exportsa Modal
%
Imports Modal
%
Total
tradea
Total
modal %
Total 492,046 100.0 1,230,540 100.0 1,722,586 100
Waterb 364,613 74.1 969,996 78.8 1,334,609 77.5
Air 2,634 0.5 3,912 0.3 6,547 0.4
Truck 93,851 19.1 94,954 7.7 188,806 11.0
Rail 26,176 5.3 80,867 6.6 107,043 6.2
Pipeline 1,951 0.4 78,009 6.3 79,959 4.6
Other, unknown, & miscellaneous 2,820 0.6 2,802 0.2 5,622 0.3

a BTS estimated those weights for truck, rail, pipeline, and other and unknown based on value-to-weight ratios from the import data because export weights for surface modes are not currently reported. Weight for water and air exports and imports are from U.S. Department of Commerce, U.S. Census Bureau. b The weight data for water transportation vary from those officially reported by the U.S. Army Corps of Engineers, because the data in this table exclude intransit shipments (merchandise shipped from one foreign country to another via a U.S. port but not part of U.S. official merchandise trade).

Notes: Numbers may not add to totals due to rounding.

Water-Excludes intransit data (merchandise shipped from one foreign country to another via a U.S. water port).

Imports-Excludes imports valued at less than $1,250. Import value is based on U.S. general imports, customs value basis.

Exports-Excludes exports valued at less than $2,500. Export value is FAS (free alongside ship) and represents the value of exports at the port of export, including the transaction price and inland freight, insurance, and other charges.

Sources: Compiled by U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), October 2004. Water and air data-U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, U.S. Exports of Merchandise, CD-ROM and U.S. Imports of Merchandise, CD-ROM, December 2003. Total, truck, rail, pipeline, other and unknown data-USDOT, BTS, Transborder Surface Freight Data 2004; and special tabulation, October 2004.