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 |
12.7 |
– |
20.8 |
– |
14.9 |
– |
Less than 50 miles |
23.2 |
3.6 |
29.8 |
5.8 |
21.6 |
1.2 |
50 to 99 miles |
19.9 |
3.3 |
37.1 |
4.6 |
36.9 |
4.2 |
100 to 249 miles |
16.7 |
3.6 |
30.7 |
3.6 |
31.5 |
3.5 |
250 to 499 miles |
23.6 |
1.9 |
35.0 |
1.9 |
30.8 |
2.4 |
500 to 749 miles |
22.1 |
0.7 |
16.5 |
0.8 |
16.8 |
1.8 |
750 to 999 miles |
20.7 |
0.9 |
22.6 |
0.5 |
22.6 |
1.9 |
1,000 to 1,499 miles |
S |
S |
34.2 |
0.5 |
33.6 |
2.1 |
1,500 to 1,999 miles |
20.3 |
0.3 |
37.5 |
0.2 |
37.9 |
1.4 |
2,000 miles or more |
34.4 |
1.3 |
26.1 |
0.4 |
26.2 |
3.3 |
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 |
14.1 |
– |
20.3 |
– |
15.8 |
– |
Less than 50 miles |
23.9 |
3.8 |
25.0 |
5.7 |
21.4 |
1.2 |
50 to 99 miles |
21.9 |
3.6 |
37.8 |
4.8 |
37.6 |
4.3 |
100 to 249 miles |
18.8 |
3.5 |
31.5 |
3.4 |
32.2 |
3.5 |
250 to 499 miles |
24.2 |
2.4 |
35.3 |
2.3 |
31.0 |
2.6 |
500 to 749 miles |
25.2 |
0.7 |
16.6 |
0.9 |
16.9 |
1.9 |
750 to 999 miles |
24.4 |
0.9 |
24.1 |
0.4 |
24.1 |
2.1 |
1,000 to 1,499 miles |
S |
S |
34.8 |
0.7 |
34.1 |
2.2 |
1,500 to 1,999 miles |
31.2 |
0.3 |
42.2 |
0.2 |
43.2 |
1.6 |
2,000 miles or more |
42.9 |
1.3 |
25.4 |
0.3 |
25.3 |
2.9 |
Truck
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
12.3 |
– |
20.2 |
– |
13.4 |
– |
Less than 50 miles |
23.9 |
3.8 |
25.0 |
5.7 |
21.4 |
1.3 |
50 to 99 miles |
21.9 |
3.6 |
37.8 |
4.8 |
37.6 |
4.3 |
100 to 249 miles |
19.0 |
3.9 |
31.7 |
3.4 |
32.4 |
4.2 |
250 to 499 miles |
24.3 |
2.4 |
36.1 |
2.3 |
31.8 |
2.7 |
500 to 749 miles |
25.1 |
0.7 |
16.6 |
0.9 |
16.8 |
2.0 |
750 to 999 miles |
22.7 |
0.7 |
21.7 |
0.4 |
21.5 |
1.8 |
1,000 to 1,499 miles |
16.6 |
0.4 |
21.3 |
0.8 |
21.5 |
2.2 |
1,500 to 1,999 miles |
31.6 |
0.3 |
43.4 |
0.2 |
44.4 |
1.6 |
2,000 miles or more |
43.8 |
1.3 |
29.3 |
0.3 |
29.4 |
3.2 |
Rail
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 |
S |
S |
S |
S |
S |
S |
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 |
– |
– |
– |
– |
– |
– |
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 |
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 |
S |
S |
S |
S |
46.3 |
– |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
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 |
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 |
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 |
– |
25.7 |
– |
33.1 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
44.5 |
1.9 |
44.0 |
1.2 |
41.8 |
0.3 |
100 to 249 miles |
46.0 |
8.6 |
37.2 |
4.3 |
37.8 |
2.3 |
250 to 499 miles |
35.5 |
2.2 |
28.8 |
2.5 |
28.2 |
2.3 |
500 to 749 miles |
31.8 |
1.3 |
30.2 |
1.2 |
30.1 |
1.6 |
750 to 999 miles |
39.9 |
3.0 |
S |
S |
S |
S |
1,000 to 1,499 miles |
41.7 |
1.8 |
24.1 |
1.6 |
23.8 |
2.5 |
1,500 to 1,999 miles |
37.2 |
2.5 |
S |
S |
S |
S |
2,000 miles or more |
27.3 |
8.4 |
43.2 |
9.2 |
44.1 |
12.8 |
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 |
31.2 |
– |
25.3 |
– |
19.8 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
44.5 |
1.9 |
44.0 |
1.8 |
41.8 |
0.5 |
100 to 249 miles |
46.0 |
8.6 |
37.2 |
7.2 |
37.8 |
6.2 |
250 to 499 miles |
35.7 |
2.4 |
29.1 |
2.1 |
28.5 |
1.8 |
500 to 749 miles |
32.1 |
1.7 |
31.6 |
2.5 |
31.6 |
2.6 |
750 to 999 miles |
40.1 |
4.1 |
26.2 |
3.9 |
26.4 |
3.0 |
1,000 to 1,499 miles |
41.8 |
1.8 |
24.4 |
1.4 |
24.1 |
2.0 |
1,500 to 1,999 miles |
44.1 |
2.5 |
38.7 |
1.9 |
38.9 |
7.7 |
2,000 miles or more |
39.6 |
5.0 |
36.3 |
4.5 |
36.0 |
8.3 |
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 |
49.3 |
– |
41.7 |
– |
46.0 |
– |
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 |
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 |
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 |
S |
S |
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 |
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 |
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.