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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]
Excel | CSV
Division 1.1, Explosives with a mass explosion hazard
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
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
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
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
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
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
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
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
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
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
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
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
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.
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