Table 3-3 Hazardous Materials Shipments by Transportation Mode: 2007
| Transportation mode | Value | Tons | Ton-miles | Miles | |||
|---|---|---|---|---|---|---|---|
| $ Billions | Percent | Millions | Percent | Billions | Percent | Average distance per shipment | |
| TOTAL All modes | 1,448 | 100.0 | 2,231 | 100.0 | 323 | 100.0 | 96 |
| Single modes, total | 1,371 | 94.6 | 2,112 | 94.6 | 279 | 86.3 | 65 |
| Trucka | 837 | 57.8 | 1,203 | 53.9 | 104 | 32.2 | 59 |
| For-hire | 359 | 24.8 | 495 | 22.2 | 63 | 19.6 | 214 |
| Privateb | 478 | 33.0 | 708 | 31.7 | 41 | 12.6 | 32 |
| Rail | 69 | 4.8 | 130 | 5.8 | 92 | 28.5 | 578 |
| Water | 69 | 4.8 | 150 | 6.7 | 37 | 11.5 | 383 |
| Air | 2 | 0.1 | S | S | S | S | 1,095 |
| Pipelinec | 393 | 27.2 | 629 | 28.2 | S | S | S |
| Multiple modes, total | 71 | 4.9 | 111 | 5.0 | 43 | 13.3 | 834 |
| Parcel, U.S. Postal Service, or Courier | 8 | 0.5 | <1 | <0.1 | <1 | <0.1 | 836 |
| Other multiple modes | 28 | 1.9 | 57 | 2.5 | 17 | 5.3 | 233 |
| Unknown and other modes, total | 7 | 0.5 | 8 | 0.4 | 1 | 0.5 | 58 |
a Truck as a single mode includes shipments that went by private truck only, for-hire truck only, or a combination of both.
b Private truck refers to a truck operated by a temporary or permanent employee of an establishment or the buyer/receiver of the shipment.
c Excludes crude oil shipments.
KEY: S = data are not published because of high sampling variability or other reasons.
NOTE: Numbers and percents may not add to totals due to rounding.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, Census Bureau, 2007 Commodity Flow Survey, Hazardous Materials table 1a (Washington, DC: February 2010), available at www.bts.gov/publications/commodity_flow_survey/ as of August 2011.