Table 7a. Hazard Material Shipment Characteristics by Hazard Class Division and Mode of Transportation

Table 7a. Hazard Material Shipment Characteristics by Hazard Class Division and Mode of Transportation

[Estimates are based on data from the 2002 Commodity Flow Survey. Because of rounding, estimates may not be additive]

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Division 1.1, Explosives with a mass explosion hazard

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 470 100.0 S S S S S
Single modes 458 97.5 S S S S S
Truck 1 458 97.5 S S S S S
For-hire truck 337 71.7 S S S S 849
Private truck S S S S S S 56
Rail
Water
Air (includes truck and air)
Pipeline 2 S S S
Multiple modes S S S S S S 916
Parcel, U.S.P.S. or courier S S S S S S 916
Other multiple modes
Other and unknown modes S S S S S S 4

Division 1.2, Explosives with a projection hazard

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes S S S S S S 1,045
Single modes S S S S S S 1,045
Truck 1 S S S S S S 1,045
For-hire truck S S S S S S 1,045
Private truck
Rail
Water
Air (includes truck and air)
Pipeline 2 S S S
Multiple modes
Parcel, U.S.P.S. or courier
Other multiple modes
Other and unknown modes

Division 1.3, Explosives with predominantly a fire hazard

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes S S 27 100.0 21 100.0 786
Single modes S S 27 100.0 21 100.0 786
Truck 1 S S S S 19 89.5 779
For-hire truck S S S S S S 861
Private truck S S S S S S 239
Rail S S S S S S 836
Water
Air (includes truck and air) S S S S S S 2,310
Pipeline 2 S S S
Multiple modes
Parcel, U.S.P.S. or courier
Other multiple modes
Other and unknown modes

Division 1.4, Explosives with no significant blast hazard

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 5,245 100.0 597 100.0 426 100.0 834
Single modes 5,108 97.4 587 98.4 415 97.5 836
Truck 1 5,033 96.0 586 98.3 414 97.1 802
For-hire truck 4,594 87.6 564 94.6 406 95.4 964
Private truck S S 22 3.7 S S 243
Rail S S S S S S 534
Water
Air (includes truck and air) S S 1 S S 2,001
Pipeline 2 S S S
Multiple modes 136 2.6 S S S S 835
Parcel, U.S.P.S. or courier 136 2.6 S S S S 835
Other multiple modes
Other and unknown modes S S S S S S S

Division 1.5, Very insensitive explosives, blasting agent

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 944 100.0 4,325 100.0 1,113 100.0 S
Single modes 940 99.6 4,322 99.9 1,113 100.0 S
Truck 1 888 94.1 3,972 91.8 768 69.0 139
For-hire truck 144 15.2 960 22.2 410 36.8 405
Private truck 742 78.6 S S 358 32.1 91
Rail 48 5.1 350 8.1 345 31.0 984
Water
Air (includes truck and air) S S S S S S 2,197
Pipeline 2 S S S
Multiple modes S S S S S S 615
Parcel, U.S.P.S. or courier S S S S S S 615
Other multiple modes
Other and unknown modes S S S S S S 8

Division 2.1, Flammable gases

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 39,955 100.0 122,465 100.0 22,064 100.0 96
Single modes 39,626 99.2 121,749 99.4 21,795 98.8 95
Truck 1 16,998 42.5 44,031 36.0 5,295 24.0 81
For-hire truck 6,241 15.6 18,571 15.2 3,651 16.5 461
Private truck 10,757 26.9 25,460 20.8 1,643 7.4 27
Rail 7,579 19.0 22,755 18.6 13,061 59.2 659
Water 1,528 3.8 6,206 5.1 1,248 5.7 226
Air (includes truck and air) S S S S S S 1,549
Pipeline 2 13,463 33.7 48,740 39.8 S S S
Multiple modes 122 0.3 530 0.4 262 1.2 805
Parcel, U.S.P.S. or courier S S S S S S 715
Other multiple modes 76 0.2 529 0.4 260 1.2 S
Other and unknown modes S S 186 0.2 8 S

Division 2.2, Nonflammable, nontoxic compressed gases

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 27,024 100.0 66,329 100.0 9,012 100.0 92
Single modes 26,260 97.2 66,118 99.7 8,918 99.0 83
Truck 1 25,111 92.9 40,261 60.7 6,540 72.6 81
For-hire truck 13,254 49.0 4,598 6.9 2,137 23.7 630
Private truck 11,847 43.8 35,479 53.5 4,219 46.8 42
Rail 218 0.8 385 0.6 S S 857
Water S S S S S S 100
Air (includes truck and air) 186 0.7 S S S S 1,298
Pipeline 2 S S S S S S S
Multiple modes 547 2.0 65 0.1 S S 629
Parcel, U.S.P.S. or courier 467 1.7 S S 6 624
Other multiple modes 80 0.3 S S S S 1,053
Other and unknown modes 217 0.8 147 0.2 S S S

Division 2.3, Gases toxic by inhalation

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 6,953 100.0 24,564 100.0 6,186 100.0 117
Single modes 6,850 98.5 24,239 98.7 6,155 99.5 117
Truck 1 4,911 70.6 12,574 51.2 1,702 27.5 105
For-hire truck 2,366 34.0 6,190 25.2 998 16.1 212
Private truck 2,542 36.6 6,368 25.9 S S 60
Rail 1,169 16.8 6,090 24.8 3,226 52.2 549
Water S S S S S S 460
Air (includes truck and air) S S S S S S 610
Pipeline 2 624 9.0 4,685 19.1 S S S
Multiple modes S S S S S S 316
Parcel, U.S.P.S. or courier S S S S 318
Other multiple modes S S S S S S 1
Other and unknown modes 86 1.2 S S 31 0.5 S

Division 4.1, Flammable solids

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 3,229 100.0 9,214 100.0 3,123 100.0 256
Single modes 2,787 86.3 9,185 99.7 3,108 99.5 S
Truck 1 2,369 73.4 5,051 54.8 513 16.4 S
For-hire truck 321 9.9 3,442 37.4 398 12.7 283
Private truck 2,048 63.4 1,609 17.5 115 3.7 S
Rail S S 2,795 30.3 2,118 67.8 859
Water 16 0.5 1,263 13.7 S S 269
Air (includes truck and air) S S S S S S 1,974
Pipeline 2 S S S S S S S
Multiple modes S S S S S S 1,023
Parcel, U.S.P.S. or courier 41 1.3 1 1 883
Other multiple modes S S S S S S 4,858
Other and unknown modes S S S S S S S

Division 4.2, Spontaneously combustible materials

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 1,849 100.0 927 100.0 526 100.0 108
Single modes 1,750 94.7 917 98.9 512 97.3 84
Truck 1 1,552 84.0 616 66.5 S S 82
For-hire truck S S 551 59.4 S S 191
Private truck 474 25.6 65 7.0 S S 41
Rail 195 10.5 S S 250 47.5 819
Water
Air (includes truck and air) S S S S S S 2,002
Pipeline 2 S S S
Multiple modes 97 5.2 6 0.7 S S 254
Parcel, U.S.P.S. or courier 96 5.2 6 0.6 S S 254
Other multiple modes S S S S S S 1,913
Other and unknown modes S S S S S S S

Division 4.3, Dangerous when wet materials

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes S S 1,159 100.0 S S 369
Single modes S S 1,105 95.4 S S 315
Truck 1 S S 1,044 90.0 S S 310
For-hire truck S S S S S S 615
Private truck 168 11.3 410 35.3 S S 79
Rail S S S S S S 1,507
Water
Air (includes truck and air) S S S S S S 2,498
Pipeline 2 S S S
Multiple modes 56 3.8 S S S S 604
Parcel, U.S.P.S. or courier S S S S S S 592
Other multiple modes S S S S S S 1,081
Other and unknown modes S S S S S S S

Division 5.1, Oxidizers

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 4,610 100.0 11,773 100.0 3,807 100.0 398
Single modes 4,475 97.1 11,403 96.9 3,598 94.5 353
Truck 1 3,737 81.1 8,976 76.2 2,303 60.5 343
For-hire truck 1,664 36.1 5,897 50.1 S S 539
Private truck 2,066 44.8 3,023 25.7 278 7.3 68
Rail 736 16.0 2,427 20.6 1,295 34.0 623
Water
Air (includes truck and air) S S S S 1,071
Pipeline 2 S S S
Multiple modes 84 1.8 S S S S 1,173
Parcel, U.S.P.S. or courier S S S S S S 1,216
Other multiple modes 74 1.6 S S S S S
Other and unknown modes S S S S S S S

Division 5.2, Organic peroxides

Hazard Class Division and Mode of Transportation Value Tons Ton-miles Average miles
per shipment
2002
(million $)
Percent 2002
(thousands)
Percent 2002
(millions)
Percent
All modes 861 100.0 S S S S 511
Single modes 857 99.5 S S S S 484
Truck 1 S S S S S S 480
For-hire truck S S S S S S 574
Private truck S S 14 1.5 2 0.4 77
Rail S S S S S S 2,245
Water
Air (includes truck and air) S S S S S S 823
Pipeline 2 S S S
Multiple modes S S S S S S 633
Parcel, U.S.P.S. or courier S S S S S S 633
Other multiple modes
Other and unknown modes S S S S S S 1,208

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.