U.S. Ton Miles of Freight by Mode 2002
| Mode of Transportation | Value | Tons | Ton-miles | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1993 | 1997 | 2002 | 1993 | 1997 | 2002 | 1993 | 1997 | 2002 | |
| Truck | 65.1 | 61.9 | 63.7 | 54.5 | 59.5 | 58.2 | 25.6 | 28.4 | 32.1 |
| Rail | 3.9 | 4.3 | 3.7 | 11.8 | 10.9 | 12.0 | 26.5 | 27.3 | 27.8 |
| Water | 8.6 | 8.8 | 8.3 | 15.9 | 15.4 | 14.8 | 24.3 | 20.8 | 16.3 |
| Air | 5.5 | 7.7 | 7.4 | 0.1 | 0.1 | 0.1 | 0.2 | 0.4 | 0.3 |
| Pipeline | 4.3 | 2.7 | 2.7 | 11.9 | 9.7 | 10.5 | 16.3 | 15.8 | 16.7 |
| Multimodal | 9.2 | 11.0 | 10.6 | 1.7 | 1.5 | 1.3 | 4.6 | 5.4 | 5.0 |
| Other and unknown | 3.4 | 3.6 | 3.6 | 4.0 | 3.0 | 3.2 | 2.5 | 1.9 | 1.7 |
| Total | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
KEY: * 2002 data are preliminary.
NOTE: Multimodal includes the traditional intermodal combination of truck and rail plus truck and water; rail and water; parcel, postal, and courier service; and other intermodal combinations. The data in this figure include the Bureau of Transportation
