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 |
3.2 |
– |
18.9 |
– |
4.6 |
– |
Less than 50 miles |
13.6 |
3.6 |
29.7 |
5.4 |
28.4 |
1.7 |
50 to 99 miles |
11.0 |
1.3 |
16.0 |
2.4 |
15.7 |
1.0 |
100 to 249 miles |
10.4 |
1.5 |
9.5 |
1.8 |
9.8 |
1.2 |
250 to 499 miles |
8.2 |
1.7 |
5.9 |
1.5 |
6.4 |
1.7 |
500 to 749 miles |
15.5 |
1.8 |
8.8 |
0.7 |
8.8 |
1.1 |
750 to 999 miles |
12.9 |
0.5 |
15.4 |
0.2 |
15.9 |
0.8 |
1,000 to 1,499 miles |
13.4 |
0.5 |
16.4 |
0.2 |
16.5 |
1.1 |
1,500 to 1,999 miles |
18.6 |
0.3 |
22.8 |
0.1 |
21.2 |
0.8 |
2,000 miles or more |
13.5 |
0.6 |
15.8 |
0.2 |
15.7 |
1.9 |
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 |
3.3 |
– |
18.3 |
– |
5.0 |
– |
Less than 50 miles |
14.1 |
4.0 |
29.2 |
5.0 |
27.0 |
1.6 |
50 to 99 miles |
13.1 |
1.4 |
16.3 |
2.4 |
15.9 |
1.1 |
100 to 249 miles |
12.0 |
1.6 |
10.1 |
1.6 |
10.4 |
1.2 |
250 to 499 miles |
8.5 |
1.8 |
6.0 |
1.4 |
6.6 |
1.8 |
500 to 749 miles |
16.8 |
1.9 |
9.4 |
0.6 |
9.4 |
1.1 |
750 to 999 miles |
13.2 |
0.5 |
14.9 |
0.2 |
15.6 |
0.7 |
1,000 to 1,499 miles |
14.1 |
0.5 |
16.7 |
0.2 |
16.7 |
1.1 |
1,500 to 1,999 miles |
19.2 |
0.3 |
23.1 |
0.1 |
21.4 |
0.8 |
2,000 miles or more |
14.6 |
0.7 |
17.0 |
0.2 |
16.9 |
2.0 |
Truck
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
3.8 |
– |
18.4 |
– |
5.2 |
– |
Less than 50 miles |
14.1 |
4.1 |
29.2 |
5.0 |
26.7 |
1.6 |
50 to 99 miles |
13.1 |
1.4 |
16.3 |
2.4 |
15.9 |
1.0 |
100 to 249 miles |
12.0 |
1.7 |
10.6 |
1.7 |
11.0 |
1.4 |
250 to 499 miles |
8.7 |
1.8 |
5.9 |
1.4 |
6.4 |
1.8 |
500 to 749 miles |
17.4 |
1.9 |
9.9 |
0.6 |
10.0 |
1.2 |
750 to 999 miles |
13.3 |
0.5 |
14.9 |
0.2 |
15.6 |
0.8 |
1,000 to 1,499 miles |
12.3 |
0.4 |
16.7 |
0.2 |
16.7 |
1.2 |
1,500 to 1,999 miles |
19.6 |
0.3 |
23.2 |
0.1 |
21.5 |
0.8 |
2,000 miles or more |
15.0 |
0.5 |
18.5 |
0.2 |
18.5 |
2.0 |
Rail
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
44.2 |
– |
38.0 |
– |
44.1 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
– |
– |
– |
– |
– |
– |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
39.8 |
12.4 |
41.0 |
12.0 |
42.2 |
12.6 |
500 to 749 miles |
S |
S |
S |
S |
S |
S |
750 to 999 miles |
– |
– |
– |
– |
– |
– |
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 |
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 |
38.9 |
– |
36.1 |
– |
36.4 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
29.7 |
11.4 |
S |
S |
S |
S |
750 to 999 miles |
S |
S |
42.9 |
0.6 |
42.4 |
0.9 |
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 |
46.4 |
8.9 |
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 |
14.4 |
– |
20.0 |
– |
19.2 |
– |
Less than 50 miles |
29.3 |
1.1 |
43.3 |
2.4 |
47.3 |
0.1 |
50 to 99 miles |
28.9 |
2.1 |
26.2 |
2.6 |
26.5 |
0.4 |
100 to 249 miles |
27.9 |
3.1 |
39.3 |
4.4 |
36.6 |
1.2 |
250 to 499 miles |
13.1 |
2.1 |
17.9 |
2.7 |
21.2 |
1.6 |
500 to 749 miles |
17.9 |
1.5 |
14.6 |
1.9 |
15.2 |
2.4 |
750 to 999 miles |
23.9 |
1.5 |
25.3 |
1.0 |
28.0 |
1.6 |
1,000 to 1,499 miles |
39.3 |
3.1 |
31.8 |
3.0 |
32.5 |
3.4 |
1,500 to 1,999 miles |
29.5 |
0.9 |
24.9 |
0.8 |
22.9 |
2.4 |
2,000 miles or more |
21.5 |
0.9 |
27.3 |
1.9 |
27.8 |
5.7 |
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 |
14.1 |
– |
19.6 |
– |
13.1 |
– |
Less than 50 miles |
29.3 |
1.1 |
43.3 |
2.6 |
47.3 |
0.1 |
50 to 99 miles |
28.9 |
2.2 |
26.2 |
3.0 |
26.5 |
0.5 |
100 to 249 miles |
28.3 |
3.4 |
40.3 |
5.6 |
38.6 |
2.9 |
250 to 499 miles |
11.6 |
2.0 |
16.3 |
2.5 |
17.7 |
1.8 |
500 to 749 miles |
17.3 |
1.9 |
14.1 |
1.9 |
14.6 |
2.8 |
750 to 999 miles |
27.7 |
1.4 |
27.8 |
0.9 |
28.3 |
1.5 |
1,000 to 1,499 miles |
39.3 |
3.1 |
31.9 |
3.2 |
32.6 |
3.8 |
1,500 to 1,999 miles |
31.1 |
0.9 |
27.7 |
0.9 |
26.0 |
2.3 |
2,000 miles or more |
21.1 |
1.0 |
24.3 |
2.0 |
24.0 |
4.9 |
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 |
38.4 |
– |
35.9 |
– |
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 |
S |
S |
S |
S |
S |
S |
1,500 to 1,999 miles |
S |
S |
S |
S |
S |
S |
2,000 miles or more |
S |
S |
42.7 |
14.8 |
40.7 |
14.0 |
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 |
17.8 |
– |
S |
S |
26.7 |
– |
Less than 50 miles |
29.0 |
10.1 |
S |
S |
S |
S |
50 to 99 miles |
36.3 |
3.9 |
40.2 |
4.5 |
37.9 |
1.3 |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
25.6 |
1.8 |
43.6 |
2.9 |
45.3 |
1.7 |
500 to 749 miles |
35.5 |
3.9 |
40.3 |
3.9 |
40.9 |
8.2 |
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 |
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.