Table 2b. Hazardous Material Shipment Characteristics by Hazard Class: 2002 and 1997
Monday, July 2, 2012
Table 2b. Hazardous Material Shipment Characteristics by Hazard Class: 2002 and 1997
[Estimates are based on data from the 2002 and 1997 Commodity Flow Surveys. Because of rounding, estimates may not be additive]
| Hazard class and description | Value | Tons | Ton-miles | Average miles per shipment | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2002
(million $) |
1997 (million $) |
Percent change |
2002 (thousands) |
1997 (thousands) |
Percent change |
2002 (millions) |
1997 (millions) |
Percent change |
2002 | 1997 | Percent change |
|
| Total | 660,181 | 526,679 | 25.3 | 2,191,519 | 1,783,620 | 22.9 | 326,727 | 294,823 | 10.8 | 136 | 110 | 23.7 |
| Class 1, Explosives | 7,901 | 5,584 | 41.5 | 5,000 | 1,718 | 191.0 | 1,568 | S | S | 651 | 771 | -15.6 |
| Class 2, Gases | 73,932 | 47,288 | 56.3 | 213,358 | 137,138 | 55.6 | 37,262 | 26,002 | 43.3 | 95 | 60 | 58.7 |
| Class 3, Flammable liquids | 490,238 | 386,994 | 26.7 | 1,788,986 | 1,450,591 | 23.3 | 218,574 | 184,824 | 18.3 | 106 | 69 | 54.3 |
| Class 4, Flammable solids | 6,566 | 4,238 | 54.9 | 11,300 | 14,832 | -23.8 | 4,391 | 9,735 | -54.9 | 158 | 660 | -76.0 |
| Class 5, Oxidizers and organic peroxides | 5,471 | 4,485 | 22.0 | 12,670 | 9,239 | 37.1 | 4,221 | 4,471 | -5.6 | 407 | 193 | 111.2 |
| Class 6, Toxic (poison) | 8,275 | 10,085 | -18.0 | 8,459 | 6,366 | 32.9 | 4,254 | 2,824 | 50.6 | 626 | 403 | 55.2 |
| Class 7, Radioactive materials | 5,850 | 2,722 | 114.9 | 57 | 87 | -35.1 | 44 | 48 | -8.8 | S | 445 | S |
| Class 8, Corrosive materials | 38,324 | 41,336 | -7.3 | 90,671 | 98,331 | -7.8 | 36,260 | 42,918 | -15.5 | 301 | 205 | 46.7 |
| Class 9, Miscellaneous dangerous goods | 23,625 | 23,946 | -1.3 | 61,018 | 65,317 | -6.6 | 20,153 | 22,727 | -11.3 | 368 | 323 | 13.9 |
KEY:
– Represents and estimate equal to zero or less than 1 unit of
measure.
S Estimate does not meet publication standards b ecause of highly sampling
variability or poor response quality.
SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.