Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002
Monday, July 2, 2012
Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002
[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]
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All modes
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
7.4 |
– |
12.2 |
– |
21.1 |
– |
Less than 50 miles |
14.5 |
3.4 |
23.2 |
7.1 |
20.9 |
1.7 |
50 to 99 miles |
21.1 |
1.8 |
20.1 |
1.1 |
21.6 |
1.1 |
100 to 249 miles |
10.6 |
1.4 |
26.8 |
4.5 |
29.5 |
3.8 |
250 to 499 miles |
12.0 |
1.7 |
40.4 |
4.2 |
43.6 |
4.8 |
500 to 749 miles |
18.0 |
2.4 |
29.5 |
4.6 |
34.1 |
8.6 |
750 to 999 miles |
20.9 |
1.1 |
22.3 |
0.4 |
22.0 |
1.3 |
1,000 to 1,499 miles |
18.0 |
0.4 |
19.1 |
0.2 |
19.0 |
1.1 |
1,500 to 1,999 miles |
21.5 |
1.1 |
28.0 |
0.3 |
27.4 |
2.0 |
2,000 miles or more |
29.3 |
0.4 |
44.1 |
– |
42.7 |
0.4 |
Single modes
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
10.1 |
– |
12.6 |
– |
21.8 |
– |
Less than 50 miles |
15.0 |
3.3 |
23.2 |
7.1 |
20.9 |
1.8 |
50 to 99 miles |
23.1 |
2.0 |
20.2 |
1.1 |
21.7 |
1.2 |
100 to 249 miles |
12.4 |
1.5 |
26.9 |
4.5 |
29.6 |
4.0 |
250 to 499 miles |
13.4 |
1.8 |
40.9 |
4.2 |
44.2 |
4.9 |
500 to 749 miles |
23.6 |
1.9 |
29.0 |
4.3 |
33.7 |
8.7 |
750 to 999 miles |
27.8 |
1.1 |
23.0 |
0.4 |
22.7 |
1.3 |
1,000 to 1,499 miles |
22.2 |
0.6 |
19.6 |
0.2 |
19.6 |
1.2 |
1,500 to 1,999 miles |
26.0 |
1.0 |
31.7 |
0.3 |
31.2 |
1.5 |
2,000 miles or more |
40.0 |
0.6 |
47.7 |
– |
46.2 |
0.3 |
Truck
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
10.5 |
– |
14.3 |
– |
26.4 |
– |
Less than 50 miles |
15.0 |
3.5 |
24.7 |
6.8 |
21.0 |
2.1 |
50 to 99 miles |
23.1 |
2.2 |
20.2 |
2.1 |
21.7 |
1.8 |
100 to 249 miles |
14.4 |
1.6 |
22.8 |
3.9 |
21.6 |
4.8 |
250 to 499 miles |
13.5 |
2.0 |
39.7 |
3.2 |
40.9 |
2.5 |
500 to 749 miles |
26.8 |
2.2 |
41.3 |
1.6 |
41.2 |
2.7 |
750 to 999 miles |
29.5 |
1.1 |
25.0 |
0.6 |
24.9 |
1.5 |
1,000 to 1,499 miles |
22.6 |
0.7 |
18.7 |
0.1 |
17.9 |
0.6 |
1,500 to 1,999 miles |
29.3 |
1.1 |
38.3 |
0.5 |
38.6 |
3.1 |
2,000 miles or more |
46.5 |
0.5 |
49.7 |
– |
49.7 |
0.6 |
Rail
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
36.3 |
– |
S |
S |
S |
S |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
50 to 99 miles |
– |
– |
– |
– |
– |
– |
100 to 249 miles |
42.3 |
12.3 |
S |
S |
S |
S |
250 to 499 miles |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
S |
S |
49.5 |
5.1 |
46.5 |
4.0 |
750 to 999 miles |
42.7 |
9.5 |
47.2 |
7.3 |
47.5 |
6.6 |
1,000 to 1,499 miles |
S |
S |
S |
S |
S |
S |
1,500 to 1,999 miles |
43.3 |
4.1 |
45.7 |
2.3 |
45.8 |
7.6 |
2,000 miles or more |
– |
– |
– |
– |
– |
– |
All other Single modes
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
32.0 |
– |
48.3 |
– |
48.0 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
40.8 |
6.9 |
S |
S |
S |
S |
250 to 499 miles |
30.9 |
5.4 |
44.5 |
10.7 |
38.0 |
6.5 |
500 to 749 miles |
35.7 |
8.1 |
48.2 |
15.0 |
48.1 |
19.2 |
750 to 999 miles |
44.7 |
4.8 |
S |
S |
S |
S |
1,000 to 1,499 miles |
S |
S |
S |
S |
S |
S |
1,500 to 1,999 miles |
49.1 |
4.9 |
47.9 |
3.5 |
48.5 |
6.6 |
2,000 miles or more |
S |
S |
47.3 |
2.1 |
S |
S |
Multiple modes
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
22.7 |
– |
19.8 |
– |
16.8 |
– |
Less than 50 miles |
33.2 |
1.3 |
31.6 |
1.7 |
29.4 |
– |
50 to 99 miles |
46.4 |
1.8 |
24.1 |
1.2 |
23.4 |
0.2 |
100 to 249 miles |
21.8 |
1.5 |
43.7 |
1.8 |
43.1 |
0.7 |
250 to 499 miles |
21.8 |
2.0 |
19.3 |
2.7 |
19.8 |
1.8 |
500 to 749 miles |
36.9 |
4.4 |
24.7 |
3.0 |
24.8 |
3.1 |
750 to 999 miles |
43.7 |
2.7 |
29.3 |
4.1 |
28.5 |
5.4 |
1,000 to 1,499 miles |
39.1 |
0.9 |
34.7 |
0.6 |
34.5 |
1.1 |
1,500 to 1,999 miles |
24.8 |
3.5 |
25.4 |
5.9 |
25.6 |
7.5 |
2,000 miles or more |
35.2 |
0.6 |
32.9 |
0.7 |
31.9 |
1.9 |
Parcel, USPS or courier
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
23.0 |
– |
25.4 |
– |
23.9 |
– |
Less than 50 miles |
33.2 |
1.3 |
31.6 |
1.7 |
29.4 |
– |
50 to 99 miles |
46.4 |
1.8 |
24.1 |
1.2 |
23.4 |
0.2 |
100 to 249 miles |
21.9 |
1.6 |
43.7 |
2.5 |
43.1 |
0.8 |
250 to 499 miles |
22.4 |
2.2 |
22.8 |
2.5 |
22.8 |
1.7 |
500 to 749 miles |
36.9 |
4.4 |
24.3 |
2.1 |
23.7 |
2.5 |
750 to 999 miles |
44.4 |
2.6 |
35.3 |
1.2 |
34.4 |
1.6 |
1,000 to 1,499 miles |
39.1 |
0.9 |
34.7 |
0.6 |
34.5 |
1.1 |
1,500 to 1,999 miles |
26.7 |
2.7 |
24.7 |
1.9 |
25.2 |
4.1 |
2,000 miles or more |
35.2 |
0.6 |
32.9 |
0.7 |
31.9 |
2.1 |
All other multiple modes
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
43.1 |
– |
36.1 |
– |
42.2 |
– |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
50 to 99 miles |
– |
– |
– |
– |
– |
– |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
S |
S |
S |
S |
S |
S |
750 to 999 miles |
S |
S |
S |
S |
S |
S |
1,000 to 1,499 miles |
– |
– |
– |
– |
– |
– |
1,500 to 1,999 miles |
S |
S |
S |
S |
S |
S |
2,000 miles or more |
– |
– |
– |
– |
– |
– |
Other and unknown modes
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
29.8 |
– |
32.8 |
– |
S |
S |
Less than 50 miles |
39.3 |
14.7 |
32.0 |
11.6 |
27.7 |
10.0 |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
47.3 |
0.7 |
S |
S |
S |
S |
250 to 499 miles |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
46.4 |
10.6 |
S |
S |
S |
S |
750 to 999 miles |
S |
S |
S |
S |
S |
S |
1,000 to 1,499 miles |
S |
S |
S |
S |
S |
S |
1,500 to 1,999 miles |
S |
S |
49.9 |
1.8 |
S |
S |
2,000 miles or more |
– |
– |
– |
– |
– |
– |
KEY:
– Represents data cell equal to zero or less than
1 unit of measure.
S Estimate does not meet publication standards because of high sampling
variability or poor response quality.
CV Coefficient of variation of number
NOTE: The Introduction and appendixes give
information onf 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, Metropolitan Data,
December 2004.