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 |
6.8 |
– |
18.1 |
– |
29.6 |
– |
Less than 50 miles |
16.6 |
3.7 |
21.6 |
4.0 |
15.9 |
0.8 |
50 to 99 miles |
17.3 |
1.3 |
26.1 |
1.5 |
26.6 |
0.9 |
100 to 249 miles |
10.1 |
1.9 |
22.7 |
1.6 |
29.6 |
2.7 |
250 to 499 miles |
17.0 |
2.4 |
39.9 |
2.3 |
42.3 |
6.5 |
500 to 749 miles |
13.7 |
1.4 |
21.9 |
0.7 |
21.9 |
2.3 |
750 to 999 miles |
21.7 |
0.6 |
S |
S |
S |
S |
1,000 to 1,499 miles |
15.6 |
0.9 |
22.2 |
0.5 |
22.6 |
3.4 |
1,500 to 1,999 miles |
26.5 |
0.2 |
27.6 |
– |
28.9 |
0.2 |
2,000 miles or more |
15.9 |
1.1 |
29.9 |
0.5 |
28.8 |
5.6 |
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 |
5.7 |
– |
17.7 |
– |
34.1 |
– |
Less than 50 miles |
15.1 |
3.7 |
21.7 |
4.2 |
16.2 |
1.0 |
50 to 99 miles |
19.4 |
1.4 |
26.2 |
1.5 |
26.7 |
1.0 |
100 to 249 miles |
9.4 |
2.1 |
22.8 |
1.4 |
29.8 |
3.0 |
250 to 499 miles |
15.1 |
2.2 |
25.2 |
1.6 |
24.8 |
3.6 |
500 to 749 miles |
16.6 |
1.5 |
22.6 |
0.6 |
22.6 |
2.1 |
750 to 999 miles |
28.3 |
0.7 |
S |
S |
S |
S |
1,000 to 1,499 miles |
14.3 |
0.6 |
23.1 |
0.5 |
23.5 |
3.3 |
1,500 to 1,999 miles |
29.8 |
0.1 |
26.0 |
– |
28.4 |
0.2 |
2,000 miles or more |
19.2 |
1.0 |
33.8 |
0.5 |
32.9 |
5.7 |
Truck
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
5.2 |
– |
16.8 |
– |
31.1 |
– |
Less than 50 miles |
14.9 |
3.8 |
22.0 |
3.7 |
14.7 |
1.4 |
50 to 99 miles |
20.5 |
1.4 |
25.7 |
1.6 |
26.6 |
1.2 |
100 to 249 miles |
11.2 |
2.4 |
10.3 |
1.4 |
10.2 |
4.4 |
250 to 499 miles |
14.5 |
2.2 |
17.7 |
1.2 |
17.7 |
3.3 |
500 to 749 miles |
16.7 |
1.6 |
21.7 |
0.7 |
22.0 |
2.5 |
750 to 999 miles |
29.2 |
0.8 |
S |
S |
S |
S |
1,000 to 1,499 miles |
16.1 |
0.7 |
24.5 |
0.5 |
25.1 |
3.0 |
1,500 to 1,999 miles |
27.1 |
0.1 |
29.8 |
– |
33.1 |
0.2 |
2,000 miles or more |
22.7 |
1.0 |
41.4 |
0.5 |
41.2 |
6.0 |
Rail
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
30.0 |
– |
S |
S |
S |
S |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
48.5 |
8.2 |
S |
S |
S |
S |
250 to 499 miles |
38.7 |
5.8 |
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 |
42.0 |
7.8 |
31.3 |
8.4 |
31.3 |
10.6 |
1,500 to 1,999 miles |
S |
S |
S |
S |
S |
S |
2,000 miles or more |
42.4 |
5.0 |
46.5 |
4.9 |
46.9 |
7.5 |
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 |
23.0 |
– |
S |
S |
47.3 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
43.1 |
13.0 |
S |
S |
27.2 |
17.1 |
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 |
S |
S |
S |
S |
S |
S |
1,500 to 1,999 miles |
S |
S |
S |
S |
S |
S |
2,000 miles or more |
46.6 |
6.0 |
S |
S |
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 |
30.4 |
– |
S |
S |
S |
S |
Less than 50 miles |
S |
S |
42.7 |
3.0 |
47.1 |
0.1 |
50 to 99 miles |
S |
S |
47.2 |
2.5 |
42.1 |
0.4 |
100 to 249 miles |
29.7 |
4.8 |
21.5 |
5.4 |
21.3 |
1.7 |
250 to 499 miles |
40.2 |
6.8 |
S |
S |
S |
S |
500 to 749 miles |
34.6 |
2.7 |
40.8 |
5.6 |
40.0 |
5.5 |
750 to 999 miles |
31.7 |
1.2 |
24.8 |
2.3 |
25.3 |
2.7 |
1,000 to 1,499 miles |
35.8 |
2.1 |
34.3 |
2.7 |
36.0 |
4.4 |
1,500 to 1,999 miles |
44.4 |
0.8 |
S |
S |
S |
S |
2,000 miles or more |
32.3 |
2.6 |
S |
S |
S |
S |
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 |
34.4 |
– |
27.6 |
– |
24.6 |
– |
Less than 50 miles |
S |
S |
42.7 |
2.2 |
47.1 |
– |
50 to 99 miles |
S |
S |
47.2 |
1.9 |
42.1 |
0.3 |
100 to 249 miles |
29.7 |
4.9 |
21.5 |
3.1 |
21.3 |
1.1 |
250 to 499 miles |
46.8 |
3.0 |
39.0 |
3.8 |
39.9 |
4.5 |
500 to 749 miles |
34.6 |
2.4 |
40.8 |
3.2 |
40.0 |
3.0 |
750 to 999 miles |
31.7 |
1.3 |
24.8 |
2.0 |
25.3 |
2.7 |
1,000 to 1,499 miles |
35.8 |
2.0 |
34.3 |
1.6 |
36.0 |
2.5 |
1,500 to 1,999 miles |
44.4 |
1.3 |
S |
S |
S |
S |
2,000 miles or more |
32.4 |
2.4 |
26.4 |
1.6 |
26.5 |
4.6 |
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 |
S |
S |
S |
S |
S |
S |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
50 to 99 miles |
– |
– |
– |
– |
– |
– |
100 to 249 miles |
– |
– |
– |
– |
– |
– |
250 to 499 miles |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
– |
– |
– |
– |
– |
– |
750 to 999 miles |
– |
– |
– |
– |
– |
– |
1,000 to 1,499 miles |
– |
– |
– |
– |
– |
– |
1,500 to 1,999 miles |
– |
– |
– |
– |
– |
– |
2,000 miles or more |
S |
S |
S |
S |
S |
S |
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 |
25.9 |
– |
S |
S |
S |
S |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
44.6 |
14.1 |
35.6 |
13.4 |
34.5 |
13.9 |
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 |
S |
S |
S |
S |
S |
S |
1,500 to 1,999 miles |
– |
– |
– |
– |
– |
– |
2,000 miles or more |
S |
S |
S |
S |
S |
S |
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.