Table 4. Hazardous Versus Nonhazardous Material Shipment Characteristics by Mode of Transportation: 2007

Table 4. Hazardous Versus Nonhazardous Material Shipment Characteristics by Mode of Transportation: 2007

Estimates are based on data from the 2007 Commodity Flow Survey. Because of rounding, estimates may not be additive.

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Mode of transportation Tons Ton-miles 1 Tons Ton-miles
Total (thousands) Hazardous Nonhazardous Total (millions) Hazardous Nonhazardous Total CV 2 Hazardous Nonhazardous Total CV Hazardous Nonhazardous
2007 (thousands) Percent 20007 (thousands) Percent 2007 (millions) Percent 2007 (millions) Percent 2007 CV Standard Error of % 2007 CV Standard Error of % 2007 CV Standard Error of % 2007 CV Standard Error of %
All modes 12,543,425 2,231,133 17.8 10,312,292 82.2 3,344,658 323,457 9.7 3,021,201 90.3 1.9 3.3 0.7 2.4 0.7 3.1 4.6 0.5 3.3 0.5
Single modes 11,698,128 2,111,622 18.1 9,586,507 81.9 2,894,251 279,105 9.6 2,615,146 90.4 1.7 3.2 0.7 2.2 0.7 3.1 4.1 0.5 3.4 0.5
Truck 3 8,778,713 1,202,825 13.7 7,575,888 86.3 1,342,104 103,997 7.7 1,238,107 92.3 1.4 5.4 0.8 2 0.8 1.3 6.5 0.5 1.3 0.5
For-hire truck 4,075,136 495,077 12.1 3,580,060 87.9 1,055,646 63,288 6.0 992,359 94.0 1.2 6.5 0.8 1.6 0.8 1.7 8.2 0.5 1.6 0.5
Private truck 4,703,576 707,748 15.0 3,995,828 85.0 286,457 40,709 14.2 245,748 85.8 2.2 7.4 1.1 2.9 1.1 2.1 9.3 1.1 1.7 1.1
Rail 1,861,307 129,743 7.0 1,731,564 93.0 1,344,040 92,169 6.9 1,251,871 93.1 5 10.4 0.7 5.4 0.7 6.7 8 0.7 7.1 0.7
Water 403,639 149,794 37.1 253,845 62.9 157,314 37,064 23.6 120,251 76.4 9.2 13.3 3.5 9.7 3.5 11.8 15.2 2.6 12.7 2.6
Shallow draft 343,307 124,396 36.2 218,911 63.8 117,473 22,411 19.1 95,062 80.9 10.8 16.1 4.1 11.7 4.1 14 26.3 2.5 12.8 2.5
Great Lakes 17,792 S S 16,575 93.2 6,887 S S 6,000 87.1 17.5 S S 20.1 6.6 15.7 S S 19 8.9
Deep draft 42,540 24,181 56.8 18,359 43.2 32,954 13,767 41.8 19,188 58.2 10.3 13.8 8 26.1 8 21.3 23.2 8.2 33.3 8.2
Air (includes truck and air) 3,611 S S 3,256 90.2 4,510 S S 4,334 96.1 7.9 S S 6 5.5 7.3 S S 7.4 2.5
Pipeline 4 650,859 628,905 96.6 21,954 3.4 S S S S S 5.1 5.3 1 30.3 1 S S S S S
Multiple modes 573,729 111,022 19.4 462,708 80.6 416,642 42,886 10.3 373,756 89.7 5.4 13.5 2.7 6.9 2.7 5.4 14.4 1.8 6.4 1.8
Parcel, U.S.P.S. or courier 33,900 236 0.7 33,664 99.3 27,961 151 0.5 27,810 99.5 2.4 16.7 0.1 2.4 0.1 3 28.9 0.1 2.9 0.1
Truck and rail 225,589 11,706 5.2 213,883 94.8 196,772 10,120 5.1 186,652 94.9 7.8 16.2 0.7 7.8 0.7 5.9 18.2 0.8 5.7 0.8
Truck and water 145,521 36,588 25.1 108,933 74.9 98,396 12,380 12.6 86,016 87.4 16.4 23.5 6.8 21.7 6.8 15.2 20.1 5.3 18.5 5.3
Rail and water 54,878 5,742 10.5 49,136 89.5 47,111 2,937 6.2 44,174 93.8 23.4 19.1 7 26.4 7 21.8 24.1 7.2 23.8 7.2
Other multiple modes 113,841 56,750 49.8 57,092 50.2 46,402 17,297 37.3 29,105 62.7 11.3 19.9 5.4 12.1 5.4 11.3 25.6 6.6 12.5 6.6
Other and unknown modes 271,567 8,489 3.1 263,078 96.9 33,764 1,466 4.3 32,298 95.7 17 10.8 0.5 17.4 0.5 8 24.6 1.1 8.4 1.1

KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality.

1 Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.
2 Coefficient of Variation.
3 "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.
4 Estimates for pipeline exclude shipments of crude petroleum.

NOTES: Estimated measures of sampling variability for each estimate known as coefficients of variation (CV) are also provided in these tables. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/publications/commodity_flow_survey/.

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census: Transportation Commodity Flow Survey, December 2009.