TABLE 2-7a Change in
Domestic Freight Ton-Miles by Mode: 1991-2001
Index: 1991 = 1.00
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| Air |
1.00 |
1.11 |
1.20 |
1.33 |
1.41 |
1.45 |
1.54 |
1.56 |
1.60 |
1.69 |
1.48 |
| Truck |
1.00 |
1.03 |
1.07 |
1.14 |
1.20 |
1.23 |
1.29 |
1.33 |
1.37 |
1.39 |
1.40 |
| Railroad |
1.00 |
1.05 |
1.09 |
1.17 |
1.26 |
1.32 |
1.34 |
1.39 |
1.44 |
1.48 |
1.53 |
| Water |
1.00 |
1.01 |
0.93 |
0.96 |
0.95 |
0.90 |
0.83 |
0.79 |
0.77 |
0.76 |
0.73 |
| Oil and natural gas pipeline |
1.00 |
1.02 |
1.04 |
1.04 |
1.07 |
1.10 |
1.10 |
1.10 |
1.09 |
1.04 |
1.02 |
| Total |
1.00 |
1.03 |
1.04 |
1.09 |
1.13 |
1.15 |
1.15 |
1.17 |
1.19 |
1.19 |
1.20 |
SOURCES: Air, oil pipeline, and water-U.S. Department of Transportation (USDOT), Bureau of
Transportation Statistics (BTS), National
Transportation Statistics 2002, table 1-44
revised, available at http://www.bts.gov/, as of October 2003. Truck,
rail, natural gas pipeline-USDOT, BTS,
calculations based on data from various sources as follows: Truck-USDOT, BTS, Transportation
Statistics Annual Report 2000 (Washington,
DC: 2001), p. 124, table 2; US International Trade and Freight Transportation
Trends (Washington, DC: 2003), figure 14; USDOT, BTS, Martime Trade and Transportation 2002 (Washington, DC: 2002), table 1-20; and USDOT, Federal
Highway Administration, Highway Statistics
2001 (Washington DC: 2002), table
VM-1.
Rail-Surface Transportation Board,
Carload Waybill Sample; Transport Canada, Transportation
in Canada, Addendum (Ottawa, Ontario:
Annual issues), table A6-10; and Association of American Railroads, Railroad Facts
(Washington, DC: 1991-2001 issues), p. 36.
Natural gas pipeline-U.S. Department of Energy (DOE), Energy Information
Administration (EIA), Annual Energy Review
2001 (Washington, DC: 2002), table 6.5, and
DOE, EIA, International Energy Annual 2001 (Washington, DC: 2003), table C-1.
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