Table B-7b. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Hazard Class Division and Mode of Transportation: 2002 and 1997
Monday, July 2, 2012
Table B-7b. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Hazard Class Division and Mode of Transportation: 2002 and 1997
[Estimates are shown as percents and are based on data from the
2002 and 1997 Commodity Flow Surveys]
Excel | CSV
Division
1.1, Explosives with a mass explosion hazard
All modes |
33.9 |
22.7 |
12.7 |
S |
S |
S |
S |
S |
S |
S |
15.9 |
S |
Single modes |
33.5 |
22.8 |
12.3 |
S |
S |
S |
S |
S |
S |
S |
16 |
S |
Truck |
33.5 |
22.7 |
17.5 |
S |
38.3 |
S |
S |
S |
S |
S |
16.4 |
S |
For-hire
truck |
44.3 |
29.9 |
25.6 |
S |
26.1 |
S |
S |
23.8 |
S |
27.1 |
34.5 |
61.6 |
Private truck |
S |
16 |
S |
S |
S |
S |
S |
S |
S |
39.1 |
21.4 |
16.6 |
Rail |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
27.6 |
– |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
S |
S |
Parcel, U.S.P.S. or
courier |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
S |
S |
Other multiple modes |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Other and unknown modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
44 |
2.9 |
Division 1.2, Explosives
with a projection hazard
All modes |
S |
S |
S |
S |
42.8 |
S |
S |
48.7 |
S |
31.6 |
21.5 |
46.9 |
Single modes |
S |
S |
S |
S |
42.8 |
S |
S |
48.7 |
S |
31.6 |
21.6 |
47.8 |
Truck |
S |
S |
S |
S |
43 |
S |
S |
49 |
S |
31.6 |
21.5 |
47.7 |
For-hire
truck |
S |
S |
S |
S |
44 |
S |
S |
49 |
S |
31.6 |
19.8 |
44.6 |
Private truck |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Rail |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Parcel, U.S.P.S. or
courier |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Other multiple modes |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Other and unknown modes |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Division 1.3, Explosives
with predominantly a fire hazard
All modes |
S |
40.1 |
S |
46.8 |
30.3 |
50.5 |
43.3 |
26.1 |
42.5 |
23.3 |
39.9 |
81.1 |
Single modes |
S |
44.2 |
S |
46.8 |
30.5 |
66.4 |
43.3 |
28.2 |
52.4 |
23.3 |
19.5 |
32.8 |
Truck |
S |
44.4 |
S |
S |
30.5 |
S |
47.9 |
28.2 |
50.4 |
23.5 |
20.4 |
34.4 |
For-hire
truck |
S |
46.7 |
S |
S |
30.7 |
S |
S |
29.5 |
S |
26.3 |
12.1 |
26.3 |
Private truck |
S |
41.7 |
S |
S |
S |
S |
S |
S |
S |
40 |
27.4 |
34.8 |
Rail |
S |
– |
S |
S |
– |
S |
S |
– |
S |
31.6 |
– |
– |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
29.8 |
42.5 |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
S |
S |
Parcel, U.S.P.S. or
courier |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
S |
S |
Other multiple modes |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Other and unknown modes |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
29.8 |
– |
Division 1.4, Explosives
with no significant blast hazard
All modes |
27.0 |
11.8 |
56.0 |
34.4 |
19.3 |
69.3 |
26.7 |
17.7 |
58.2 |
8.4 |
8.5 |
11.9 |
Single modes |
28.1 |
12.5 |
69.7 |
35.0 |
19.8 |
74.5 |
27.4 |
18.1 |
63.0 |
12.1 |
17.0 |
29.0 |
Truck |
27.8 |
7.2 |
79.9 |
35.1 |
18.3 |
80.6 |
27.5 |
17.7 |
75.2 |
11.8 |
22.1 |
42.1 |
For-hire
truck |
25.2 |
11.6 |
92.8 |
36.6 |
21.9 |
113.7 |
27.9 |
19.4 |
87.9 |
8.4 |
10.7 |
12.7 |
Private truck |
S |
26.6 |
S |
41.7 |
28.4 |
14.6 |
S |
38.4 |
S |
32.9 |
18.1 |
47.0 |
Rail |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
25.9 |
13.1 |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
S |
35.5 |
S |
49.7 |
32.1 |
27.6 |
S |
29.9 |
S |
16.3 |
10.0 |
22.2 |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
38.3 |
17.2 |
12.6 |
S |
13.3 |
S |
S |
17.5 |
S |
10.8 |
7.9 |
12.1 |
Parcel, U.S.P.S. or
courier |
38.3 |
17.4 |
12.7 |
S |
13.2 |
S |
S |
16.8 |
S |
10.8 |
7.9 |
12.1 |
Other multiple modes |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Other and unknown modes |
S |
47.8 |
S |
S |
49.8 |
S |
S |
S |
S |
S |
33.6 |
S |
Division 1.5, Very
insensitive explosives, blasting agent
All modes |
35.9 |
13.4 |
138.8 |
47.9 |
18.8 |
359.3 |
38.1 |
41.6 |
641.9 |
S |
11.7 |
S |
Single modes |
35.9 |
13.4 |
138.7 |
47.9 |
18.8 |
361.2 |
38.1 |
41.9 |
648.6 |
S |
11.8 |
S |
Truck |
36.5 |
13.4 |
133.1 |
49.3 |
18.8 |
340.5 |
38.1 |
41.9 |
447.4 |
32.6 |
11.8 |
47.4 |
For-hire
truck |
48.5 |
34.8 |
426.5 |
45.7 |
40.9 |
S |
46.2 |
37.8 |
S |
15.4 |
30.2 |
41.2 |
Private truck |
39.2 |
13.5 |
128.3 |
S |
20.1 |
S |
45.7 |
S |
S |
49 |
14.5 |
50.6 |
Rail |
44.9 |
– |
– |
41.6 |
– |
– |
44.6 |
– |
– |
24.2 |
– |
– |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
S |
– |
S |
S |
– |
S |
S |
– |
S |
28 |
– |
– |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
28.2 |
31.6 |
50.3 |
Parcel, U.S.P.S. or
courier |
S |
– |
S |
S |
– |
S |
S |
– |
S |
28.2 |
– |
– |
Other multiple modes |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Other and unknown modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
34.9 |
31.6 |
3.5 |
Division 2.1, Flammable
gases
All modes |
10.6 |
10.2 |
20.5 |
10.5 |
5.5 |
18.0 |
14.1 |
11.0 |
35.5 |
33.4 |
20.6 |
69.6 |
Single modes |
10.7 |
9.0 |
20.2 |
10.5 |
5.5 |
18.2 |
13.9 |
11.6 |
36.2 |
33.8 |
22.0 |
75.1 |
Truck |
11.5 |
18.1 |
31.4 |
19.7 |
11.2 |
37.2 |
35.4 |
10.9 |
75.0 |
36.9 |
17.8 |
75.5 |
For-hire
truck |
24.9 |
11.8 |
43.6 |
29.7 |
18.1 |
49.7 |
49.5 |
17.0 |
109.7 |
20.3 |
15.1 |
32.0 |
Private truck |
14.5 |
28.1 |
45.2 |
28.1 |
12.1 |
57.6 |
39.1 |
14.9 |
80.4 |
22.4 |
10.2 |
30.3 |
Rail |
20.5 |
9.6 |
57.8 |
19.1 |
10.6 |
57.8 |
15.9 |
21.3 |
64.3 |
7.5 |
16.1 |
19.4 |
Water |
43.1 |
19.6 |
66.7 |
37.8 |
28.1 |
69.5 |
32.7 |
43.3 |
62.4 |
32.4 |
30.1 |
31.5 |
Air (includes truck and
air) |
S |
S |
S |
S |
S |
S |
S |
S |
S |
27.6 |
30.3 |
22.6 |
Pipeline |
23.4 |
9.7 |
28.8 |
21.6 |
6.0 |
27.6 |
S |
S |
S |
S |
S |
S |
Multiple modes |
33.8 |
34.8 |
27.1 |
44.4 |
32.6 |
61.0 |
49.3 |
39.6 |
165.5 |
17.5 |
S |
S |
Parcel, U.S.P.S. or
courier |
S |
30.2 |
S |
S |
31.6 |
S |
S |
48.9 |
S |
25.1 |
31.1 |
47.4 |
Other multiple modes |
38.7 |
39.4 |
21.5 |
44.7 |
32.7 |
61.2 |
49.8 |
40.0 |
167.9 |
S |
30.9 |
S |
Other and unknown modes |
S |
49.7 |
S |
32.7 |
47 |
8.9 |
38.7 |
S |
S |
S |
S |
S |
Division 2.2,
Nonflammable, nontoxic compressed gases
All modes |
11.8 |
4.9 |
27.4 |
36.7 |
15.4 |
77.3 |
29.6 |
24.8 |
63.9 |
38.9 |
14.3 |
62.6 |
Single modes |
12.1 |
5.2 |
29.0 |
36.8 |
14.5 |
79.5 |
30.1 |
25.5 |
66.4 |
34.9 |
18.7 |
65.1 |
Truck |
12.7 |
6.4 |
33.7 |
27.2 |
13.1 |
43.1 |
29.1 |
13.9 |
62.8 |
35.3 |
18.3 |
68.5 |
For-hire
truck |
24.3 |
11.8 |
80.2 |
43.9 |
20.3 |
76.1 |
31.3 |
12.1 |
84.5 |
13.2 |
11.5 |
24.2 |
Private truck |
23.0 |
8.5 |
47.5 |
31.7 |
13.7 |
48.5 |
42.7 |
16.4 |
78.4 |
37.7 |
11.9 |
55.9 |
Rail |
41.8 |
29.9 |
44.3 |
45.3 |
26.0 |
44.4 |
S |
29.3 |
S |
19.2 |
17.4 |
32.4 |
Water |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.7 |
29.3 |
3.1 |
Air (includes truck and
air) |
41.5 |
25.3 |
19.1 |
S |
36.1 |
S |
S |
31.4 |
S |
19.2 |
11.7 |
23.9 |
Pipeline |
S |
35.0 |
S |
S |
42.8 |
S |
S |
S |
S |
S |
S |
S |
Multiple modes |
29.4 |
20.2 |
72.3 |
40.2 |
S |
S |
S |
45.2 |
S |
32.1 |
23.9 |
62.1 |
Parcel, U.S.P.S. or
courier |
35.7 |
21.9 |
79.5 |
S |
S |
S |
28.3 |
S |
S |
35.1 |
23.8 |
65.2 |
Other multiple modes |
43.7 |
42.5 |
199.5 |
S |
S |
S |
S |
S |
S |
27.5 |
S |
S |
Other and unknown modes |
37.0 |
26.4 |
26.8 |
29.5 |
S |
S |
S |
S |
S |
S |
S |
S |
Division 2.3, Gases
toxic by inhalation
All modes |
11.8 |
21.0 |
28.3 |
13.9 |
14.5 |
22.3 |
11.3 |
27.1 |
19.3 |
27.3 |
32.2 |
54.4 |
Single modes |
11.8 |
21.8 |
29.8 |
13.9 |
15.8 |
24.7 |
11.2 |
27.4 |
19.5 |
27.4 |
24.3 |
34.3 |
Truck |
18.0 |
19.3 |
54.3 |
22.6 |
23.9 |
55.3 |
26.3 |
44.0 |
65.9 |
32.1 |
15.4 |
51.7 |
For-hire
truck |
29.8 |
38.3 |
92.2 |
35.3 |
43.4 |
80.8 |
35.7 |
S |
S |
30.3 |
21.9 |
43.0 |
Private truck |
23.2 |
14.2 |
61.6 |
26.4 |
18.5 |
65.9 |
S |
16.5 |
S |
31.0 |
15.7 |
45.1 |
Rail |
17.9 |
33.3 |
16.0 |
11.5 |
18.4 |
14.9 |
12.7 |
30.6 |
15.9 |
9.7 |
8.7 |
9.4 |
Water |
S |
41.4 |
S |
S |
41.9 |
S |
S |
41.0 |
S |
31.8 |
26.6 |
18.7 |
Air (includes truck and
air) |
S |
S |
S |
S |
S |
S |
S |
S |
S |
25.8 |
32.6 |
23.0 |
Pipeline |
43.5 |
34.2 |
107.1 |
40.4 |
41.1 |
127.4 |
S |
S |
S |
S |
S |
S |
Multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
41.9 |
29.8 |
20.6 |
Parcel, U.S.P.S. or
courier |
S |
S |
S |
S |
37.9 |
S |
41.1 |
S |
S |
41.7 |
29.8 |
20.6 |
Other multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
31.6 |
0.1 |
Other and unknown modes |
44.1 |
47.1 |
26.1 |
S |
S |
S |
46.5 |
S |
S |
S |
S |
S |
Division 4.1, Flammable
solids
All modes |
30.0 |
10.8 |
51.5 |
9.7 |
24.3 |
23.8 |
16.8 |
40.8 |
16.3 |
43.3 |
14.4 |
13.3 |
Single modes |
32.6 |
12.2 |
52.1 |
9.7 |
24.6 |
24.2 |
16.9 |
41.5 |
16.7 |
S |
15.3 |
S |
Truck |
38.9 |
15.0 |
62.6 |
7.1 |
4.9 |
11.7 |
24.7 |
18.9 |
32.8 |
S |
19.5 |
S |
For-hire
truck |
21.6 |
20.6 |
9.9 |
12.3 |
8.6 |
17.7 |
32.9 |
23.3 |
38.6 |
28.1 |
10.7 |
20.5 |
Private truck |
46.1 |
22.5 |
177.2 |
21.7 |
25.4 |
89.8 |
18.7 |
30.8 |
62.1 |
S |
28.2 |
S |
Rail |
S |
41.3 |
S |
26.5 |
40.6 |
23.0 |
20.4 |
43.8 |
13.1 |
14.8 |
18.8 |
14.8 |
Water |
44.1 |
S |
S |
49.9 |
S |
S |
S |
S |
S |
30.1 |
31.6 |
108.4 |
Air (includes truck and
air) |
S |
S |
S |
S |
S |
S |
S |
S |
S |
25.4 |
26.8 |
51.8 |
Pipeline |
S |
S |
S |
S |
46.4 |
S |
S |
S |
S |
S |
S |
S |
Multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
44.0 |
13.9 |
46.8 |
Parcel, U.S.P.S. or
courier |
39.7 |
S |
S |
46.8 |
42.8 |
8.4 |
48.5 |
47.5 |
9.9 |
20.7 |
13.7 |
21.7 |
Other multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.1 |
32.7 |
132.3 |
Other and unknown modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
37.4 |
S |
Division 4.2,
Spontaneously combustible materials
All modes |
36.3 |
13.3 |
65.1 |
35.4 |
13.5 |
36.7 |
39.4 |
10.0 |
27.3 |
19.4 |
22.6 |
19.5 |
Single modes |
37.7 |
13.5 |
64.5 |
35.6 |
13.7 |
36.8 |
39.8 |
9.9 |
26.9 |
23.9 |
37.5 |
21.7 |
Truck |
39.6 |
20.6 |
116.2 |
43.3 |
25.2 |
55.2 |
S |
18.3 |
S |
24.4 |
39.1 |
27.8 |
For-hire
truck |
S |
20.0 |
S |
45.6 |
29.4 |
77.5 |
S |
19.2 |
S |
19.0 |
26.0 |
18.4 |
Private truck |
20.9 |
37.5 |
103.9 |
27.2 |
21.3 |
12.8 |
S |
24.6 |
S |
21.1 |
44.4 |
32.5 |
Rail |
36.9 |
16.6 |
16.1 |
S |
13.5 |
S |
43.1 |
13.9 |
18.5 |
25.8 |
4.8 |
13.8 |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
S |
S |
S |
S |
45.3 |
S |
S |
48.5 |
S |
28.7 |
27.4 |
68.1 |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
46.0 |
S |
S |
33.3 |
S |
S |
S |
S |
S |
23.8 |
36.4 |
36.4 |
Parcel, U.S.P.S. or
courier |
46.2 |
S |
S |
33.8 |
S |
S |
S |
S |
S |
23.8 |
35.6 |
41.2 |
Other multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
30.1 |
29.0 |
44.2 |
Other and unknown modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.1 |
S |
Division 4.3, Dangerous
when wet materials
All modes |
S |
24.7 |
S |
42.8 |
S |
S |
S |
23.8 |
S |
17.6 |
15.5 |
18.1 |
Single modes |
S |
23.1 |
S |
45.2 |
S |
S |
S |
23.4 |
S |
21.5 |
10.7 |
25.7 |
Truck |
S |
25.3 |
S |
48 |
S |
S |
S |
26.4 |
S |
22.6 |
11.4 |
27.6 |
For-hire
truck |
S |
21 |
S |
S |
22.4 |
S |
S |
26.4 |
S |
21.5 |
7.7 |
27.6 |
Private truck |
41.1 |
47.3 |
40.2 |
36.4 |
S |
S |
S |
S |
S |
37.0 |
24.7 |
14.7 |
Rail |
S |
21.4 |
S |
S |
40.9 |
S |
S |
32.2 |
S |
29.8 |
28.8 |
66.5 |
Water |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
30.8 |
– |
Air (includes truck and
air) |
S |
S |
S |
S |
S |
S |
S |
S |
S |
28.0 |
29.7 |
75.4 |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
46.0 |
S |
S |
S |
S |
S |
S |
S |
S |
29.9 |
24.0 |
12.7 |
Parcel, U.S.P.S. or
courier |
S |
S |
S |
S |
S |
S |
S |
S |
S |
25.6 |
24.5 |
11.5 |
Other multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
27.3 |
27.6 |
29.3 |
Other and unknown modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
44.8 |
S |
Division 5.1, Oxidizers
All modes |
21.2 |
13.7 |
28.0 |
29.1 |
12.2 |
40.6 |
29.4 |
18.9 |
30.2 |
21.0 |
15.0 |
55.4 |
Single modes |
21.8 |
14.0 |
28.7 |
29.1 |
12.1 |
40.2 |
30.0 |
19.0 |
29.5 |
17.3 |
16.0 |
49.3 |
Truck |
25.3 |
14.5 |
37.3 |
37.0 |
14.2 |
61.9 |
47.2 |
19.3 |
77.8 |
19.3 |
16.3 |
56.2 |
For-hire
truck |
24.6 |
17.1 |
28.1 |
44.2 |
20.8 |
99.5 |
S |
23.0 |
S |
15.6 |
8.1 |
19.5 |
Private truck |
40.5 |
13.8 |
77.7 |
32.2 |
12.8 |
36.9 |
21.5 |
16.1 |
19.4 |
19.4 |
20.4 |
34.4 |
Rail |
41.0 |
40.2 |
37.9 |
24.2 |
21.2 |
24.5 |
22.1 |
26.1 |
15.7 |
16.8 |
11.4 |
14.6 |
Water |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
S |
S |
Air (includes truck and
air) |
S |
S |
S |
49.7 |
45.4 |
S |
S |
S |
S |
31.3 |
30.9 |
57.9 |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
41.5 |
39.7 |
137.1 |
S |
S |
S |
S |
S |
S |
18.0 |
11.0 |
56.4 |
Parcel, U.S.P.S. or
courier |
S |
S |
S |
S |
S |
S |
S |
40.2 |
S |
25.1 |
11.7 |
78.8 |
Other multiple modes |
49.3 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
25.3 |
S |
Other and unknown modes |
S |
35.8 |
S |
S |
S |
S |
S |
S |
S |
S |
44.2 |
S |
Division 5.2, Organic
peroxides
All modes |
49.4 |
23.8 |
142.1 |
S |
19.9 |
S |
S |
23.7 |
S |
16.4 |
18.9 |
39.5 |
Single modes |
49.7 |
24.5 |
146.6 |
S |
20.0 |
S |
S |
24.7 |
S |
17.6 |
16.4 |
35.4 |
Truck |
S |
24.5 |
S |
S |
20.0 |
S |
S |
24.7 |
S |
17.7 |
21.3 |
46.3 |
For-hire
truck |
S |
24.9 |
S |
S |
22.0 |
S |
S |
22.7 |
S |
16.0 |
12.6 |
22.1 |
Private truck |
S |
43.4 |
S |
44.1 |
41.2 |
31.3 |
49.5 |
S |
S |
31.7 |
13.7 |
16.7 |
Rail |
S |
– |
S |
S |
– |
S |
S |
– |
S |
30.1 |
– |
– |
Water |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
Air (includes truck and
air) |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
31.6 |
15.2 |
Pipeline |
– |
– |
– |
– |
– |
– |
S |
S |
S |
S |
S |
S |
Multiple modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
29.5 |
46.9 |
99.4 |
Parcel, U.S.P.S. or
courier |
S |
S |
S |
S |
S |
S |
S |
S |
S |
29.5 |
41.3 |
93.4 |
Other multiple modes |
– |
S |
S |
– |
S |
S |
– |
S |
S |
– |
31.6 |
– |
Other and unknown modes |
S |
S |
S |
S |
S |
S |
S |
S |
S |
31.6 |
26.8 |
S |
KEY:
– Represents an 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.
CV Coefficient of variation of number
NOTE: The Introduction and appendixes give
information on confidentiality protection, sampling error, nonsampling error,
sample design, and definitions. Links to this information on the Internet may
be found at www.census.gov/cfs.
SOURCE: Bureau of Transportation
Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat
Data, December 2004.