Office of Operations Freight Management and Operations

Freight Facts and Figures 2011

Tables 2-5 and 2-5M. Hazardous Materials Shipments by Hazard Class: 2007

Flammable liquids, especially gasoline, are the predominant hazardous material transported in the United States. In terms of ton miles, flammable liquids account for about 56 percent of total ton miles of hazardous materials shipments. The next largest class of hazardous materials, in terms of ton miles, is gases at about 17 percent.

Table 2-5 (standard units)

Table in Excel format

Hazard Class Description Value
Tons Ton miles
$ Billions Percent Millions Percent Billions Percent
Class 1 Explosives 12 0.8 3 0.1 <1 <0.1
Class 2 Gases 132 9.1 251 11.2 55 17.1
Class 3 Flammable liquids 1,170 80.8 1,753 78.6 182 56.1
Class 4 Flammable solids 4 0.3 20 0.9 6 1.7
Class 5 Oxidizers and organic peroxides 7 0.5 15 0.7 7 2.2
Class 6 Toxics (poison) 21 1.5 11 0.5 6 1.8
Class 7 Radioactive materials 21 1.4 <1 <0.1 <1 <0.1
Class 8 Corrosive materials 51 3.6 114 5.1 44 13.7
Class 9 Miscellaneous dangerous goods 30 2.1 63 2.8 23 7.1
Total Empty cell. 1,448 100.0 2,231 100.0 323 100.0

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 (Washington, DC: February 2010), table 1a, available at www.bts.gov/publications/commodity_flow_survey/ as of August 22, 2011.

 

Table 2-5M (metric units)

Table in Excel format

Hazard Class Description Value
Metric tonnes Tonne kilometers
$ Billions Percent Millions Percent Billions Percent
Class 1 Explosives 12 0.8 3 0.1 <1 <0.1
Class 2 Gases 132 9.1 206 11.2 118 17.1
Class 3 Flammable liquids 1,170 80.8 1,443 78.6 387 56.3
Class 4 Flammable solids 4 0.3 17 0.9 12 1.7
Class 5 Oxidizers and organic peroxides 7 0.5 12 0.7 15 2.2
Class 6 Toxics (poison) 21 1.5 9 0.5 12 1.8
Class 7 Radioactive materials 21 1.4 <1 <0.1 <1 <0.1
Class 8 Corrosive materials 51 3.6 94 5.1 95 13.8
Class 9 Miscellaneous dangerous goods 30 2.1 52 2.8 49 7.1
Total Empty cell. 1,448 100.0 1,836 100.0 688 100.0

Notes:

1 metric tonne = 1.1023 short tons; 1 tonne kilometer = 0.6849 ton miles. 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 (Washington, DC: February 2010), table 1a, available at www.bts.gov/publications/commodity_flow_survey/ as of August 22, 2011.

 


To view Excel files, you can use the Microsoft Excel Viewer.

Office of Operations