Table 1a. Hazardous Material Shipment Characteristics by Mode of Transportation: 2007

Table 1a. Hazardous 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 Value Tons Ton-miles 1 Average miles
per shipment
Value Tons Ton-miles Avg. miles per shipment CV
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV 2 Standard Error % CV Standard Error % CV Standard Error %
All modes 1,448,218 100 2,231,133 100 323,457 100 96 2.6 - 3.3 - 4.6 - 8.1
Single modes 1,370,615 94.6 2,111,622 94.6 279,105 86.3 65 2.4 0.6 3.2 0.6 4.1 1.6 8.6
Truck 3 837,074 57.8 1,202,825 53.9 103,997 32.2 59 3.4 1.5 5.4 1.8 6.5 1.9 9.4
For-hire truck 358,792 24.8 495,077 22.2 63,288 19.6 214 5.9 1.8 6.5 1.6 8.2 1.8 20.1
Private truck 478,282 33.0 707,748 31.7 40,709 12.6 32 5.5 1.1 7.4 1.3 9.3 1 4.5
Rail 69,213 4.8 129,743 5.8 92,169 28.5 578 8.2 0.4 10.4 0.5 8 1.6 11.2
Water 69,186 4.8 149,794 6.7 37,064 11.5 383 15.9 0.7 13.3 0.8 15.2 1.8 22.8
Shallow draft 57,022 3.9 124,396 5.6 22,411 6.9 S 19 0.7 16.1 0.8 26.3 1.8 S
Great Lakes S S S S S S S S S S S S S S
Deep draft 11,626 0.8 24,181 1.1 13,767 4.3 861 13.2 0.1 13.8 0.2 23.2 1.1 16.5
Air (includes truck and air) 1,735 0.1 S S S S 1,095 34.9 0.1 S S S S 7.5
Pipeline 4 393,408 27.2 628,905 28.2 S S S 5.7 1.5 5.3 1.8 S S S
Multiple modes 71,069 4.9 111,022 5.0 42,886 13.3 834 12.5 0.5 13.5 0.6 14.4 1.6 5.4
Parcel, U.S.P.S. or courier 7,675 0.5 236 - 151 - 836 19.4 0.1 16.7 - 28.9 - 5.6
Truck and rail 7,052 0.5 11,706 0.5 10,120 3.1 779 16.8 0.1 16.2 0.1 18.2 0.5 11.2
Truck and water 23,451 1.6 36,588 1.6 12,380 3.8 1,010 24.8 0.3 23.5 0.3 20.1 0.7 28.4
Rail and water 5,153 0.4 5,742 0.3 2,937 0.9 1,506 20.4 0.1 19.1 0.1 24.1 0.2 22.6
Other multiple modes 27,739 1.9 56,750 2.5 17,297 5.3 233 20.3 0.4 19.9 0.5 25.6 1.2 13.8
Other and unknown modes 6,534 0.5 8,489 0.4 1,466 0.5 58 9.2 - 10.8 - 24.6 0.1 26.8

KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality. - = Zero or Less than half the unit show; thus, it has been rounded to zero.

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: Value-of-shipment estimates are reported in current prices. Estimated measures of sampling variability for each estimate known as coefficents of variations (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.