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Table 2-1 Weight of Shipments by Transportation Mode: 2007, 2013, and 2040

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(millions of tons)

  2007 2013 2040
Total Domestic Exports2 Imports2 Total Domestic Exports2 Imports2 Total Domestic Exports2 Imports2
Truck 12,778 12,587 95 97 13,955 13,732 120 103 18,786 18,083 368 335
Rail 1,900 1,745 61 93 1,858 1,681 82 94 2,770 2,182 388 201
Water 950 504 65 381 808 410 89 309 1,070 559 164 347
Air, air & truck 13 3 4 6 15 3 5 7 53 6 20 27
Multiple modes & mail1 1,429 433 389 606 1,554 459 559 536 3,575 645 1,546 1,383
Pipeline1 1,493 1,314 4 175 1,539 1,391 11 137 1,740 1,257 17 467
Other & unknown 316 266 36 14 333 274 47 13 526 362 130 34
Total 18,879 16,851 655 1,372 20,063 17,950 914 1,199 28,520 23,095 2,632 2,794

12007 total and domestic numbers for the multiple modes & mail and the pipeline categories were revised as a result of Freight Analysis Framework database improvements.

2Data do not include imports and exports that pass through the United States from a foreign origin to a foreign destination by any mode.

NOTES: Numbers may not add to totals due to rounding. The 2013 data are provisional estimates that are based on selected modal and economic trend data. All truck, rail, water, and pipeline movements that involve more than one mode, including exports and imports that change mode at international gateways, are included in multiple modes & mail to avoid double counting. As a consequence, rail and water totals in this table are less than other published sources.

SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and Federal Highway Administration, Office of Freight Management and Operations, Freight Analysis Framework, version 3.5, 2015.