4-9 U.S. Merchandise Trade with Canada and Mexico by Mode Share: 2009

4-9 U.S. Merchandise Trade with Canada and Mexico by Mode Share: 2009

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Mode Value (percent) Weight (percent)
NAFTA trade, total 100.0 100.0
Trucka 61.9 27.8
Raila 13.0 19.4
Pipelinea 6.7 17.7
Air 5.3 0.1
Water 8.1 34.0
Other and unknowna 5.0 1.0
U.S.-NAFTA imports, total 100.0 100.0
Truck 55.5 20.4
Rail 15.0 16.5
Pipeline 11.4 25.7
Air 4.1 0.0
Water 10.8 37.3
Other and unknown 3.2 0.1
U.S.-NAFTA exports, total 100.0 100.0
Trucka 69.5 42.6
Raila 10.6 25.3
Pipelinea 1.0 1.8
Air 6.9 0.1
Water 4.7 27.4
Other and unknowna 7.3 2.8

a Because export weights for surface modes are not currently reported, BTS estimated the export weight for truck, rail, pipeline, and other and unknown based on value-to-weight ratios from the import data.

Note: U.S. North American Free Trade Agreement (NAFTA) refers to U.S. trade with Canada and Mexico.

Sources: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transborder Freight Data, special calculation available at http://www.bts.gov/programs/international/transborder/ as of November 2010.