Table 1c. Hazardous Material Shipment Characteristics by Mode of Transportation: Percent of Total for 2002 and 1997
Monday, July 2, 2012
Table 1c. Hazardous Material Shipment Characteristics by Mode of Transportation: Percent of Total for 2002 and 1997
[Estimates are based on data from the 2002 and 1997 Commodity Flow Surveys. Because of rounding, estimates may not be additive]
| Mode of transportation | Value (percent) | Tons (percent) | Ton-miles (percent) | |||
|---|---|---|---|---|---|---|
| 2002 | 1997 | 2002 | 1997 | 2002 | 1997 | |
| All modes | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Single modes | 97.6 | 96.9 | 98.5 | 98.2 | 95.5 | 92.9 |
| Truck 1 | 63.6 | 61.7 | 52.9 | 53.8 | 33.7 | 27.9 |
| For-hire truck | 28.8 | 27.4 | 20.5 | 20.7 | 19.9 | 16.7 |
| Private truck | 34.3 | 33.6 | 32.0 | 32.4 | 13.5 | 10.8 |
| Rail | 4.7 | 6.6 | 5.0 | 5.7 | 22.1 | 26.7 |
| Water | 7.1 | 6.3 | 10.4 | 9.4 | 21.6 | 21.4 |
| Air (includes truck and air) | 0.2 | 1.6 | – | – | – | – |
| Pipeline 2 | 22.0 | 20.6 | 30.2 | 29.3 | S | S |
| Multiple modes | 1.5 | 1.4 | 0.9 | 0.7 | 3.8 | S |
| Parcel, U.S.P.S. or courier | 0.6 | 0.6 | – | – | – | – |
| Other multiple modes | 0.8 | 0.8 | 0.8 | 0.7 | 3.8 | S |
| Other and unknown modes | 0.9 | 1.7 | 0.6 | 1.1 | 0.7 | 0.6 |
KEY:
– Represents and estimate equal to zero or less than
1 unit of measure.
S Estimate does not meet publication standards because of highly sampling
variability or poor response quality.
1 "Truck" as a single mode includes shipments that were made by only private truck, only for-hire truck, or a combination of private and for-hire truck.
2 Estimates for pipeline exclude shipments of crude petroleum.
SOURCE:
Bureau of Transportation Statistics (USDOT) and U.S.
Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.