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 |
10.8 |
– |
14.9 |
– |
16.7 |
– |
Less than 50 miles |
8.5 |
3.6 |
16.7 |
4.4 |
13.2 |
3.3 |
50 to 99 miles |
11.7 |
0.9 |
29.6 |
2.3 |
36.0 |
1.7 |
100 to 249 miles |
8.6 |
1.2 |
32.4 |
1.9 |
33.5 |
2.6 |
250 to 499 miles |
11.8 |
1.4 |
25.6 |
0.3 |
25.2 |
2.6 |
500 to 749 miles |
27.2 |
1.3 |
28.8 |
0.2 |
29.5 |
1.8 |
750 to 999 miles |
26.8 |
1.0 |
S |
S |
S |
S |
1,000 to 1,499 miles |
38.2 |
0.9 |
28.0 |
– |
30.1 |
1.6 |
1,500 to 1,999 miles |
29.7 |
0.3 |
45.3 |
– |
46.1 |
1.2 |
2,000 miles or more |
S |
S |
30.5 |
0.3 |
31.1 |
5.1 |
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 |
11.6 |
– |
15.0 |
– |
16.6 |
– |
Less than 50 miles |
7.9 |
4.5 |
16.8 |
4.4 |
13.3 |
3.4 |
50 to 99 miles |
11.1 |
1.2 |
29.9 |
2.3 |
36.3 |
1.7 |
100 to 249 miles |
12.8 |
1.0 |
32.7 |
1.9 |
33.8 |
2.7 |
250 to 499 miles |
14.3 |
1.7 |
26.0 |
0.3 |
25.6 |
2.7 |
500 to 749 miles |
22.4 |
1.0 |
28.9 |
0.2 |
29.6 |
1.8 |
750 to 999 miles |
40.7 |
1.1 |
S |
S |
S |
S |
1,000 to 1,499 miles |
S |
S |
28.5 |
– |
30.8 |
1.6 |
1,500 to 1,999 miles |
42.7 |
0.4 |
45.9 |
– |
46.7 |
1.2 |
2,000 miles or more |
S |
S |
30.3 |
0.3 |
30.8 |
5.1 |
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 |
– |
15.3 |
– |
15.9 |
– |
Less than 50 miles |
7.9 |
4.9 |
16.5 |
3.2 |
12.9 |
3.5 |
50 to 99 miles |
11.1 |
1.3 |
25.2 |
1.7 |
24.6 |
1.4 |
100 to 249 miles |
12.8 |
1.2 |
29.6 |
1.2 |
25.9 |
2.0 |
250 to 499 miles |
16.0 |
1.7 |
26.1 |
0.4 |
25.8 |
3.1 |
500 to 749 miles |
23.4 |
1.0 |
29.7 |
0.2 |
30.8 |
1.6 |
750 to 999 miles |
45.9 |
1.1 |
S |
S |
S |
S |
1,000 to 1,499 miles |
S |
S |
27.0 |
– |
27.3 |
0.7 |
1,500 to 1,999 miles |
34.5 |
0.1 |
46.8 |
– |
47.6 |
1.2 |
2,000 miles or more |
S |
S |
30.2 |
0.3 |
30.8 |
5.8 |
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 |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
– |
– |
– |
– |
– |
– |
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 |
26.4 |
– |
29.1 |
– |
35.9 |
– |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
26.0 |
9.7 |
S |
S |
45.2 |
5.9 |
250 to 499 miles |
34.9 |
6.9 |
37.1 |
6.0 |
40.4 |
4.6 |
500 to 749 miles |
41.1 |
2.3 |
S |
S |
S |
S |
750 to 999 miles |
S |
S |
46.1 |
3.2 |
45.9 |
3.5 |
1,000 to 1,499 miles |
42.8 |
10.1 |
46.7 |
10.2 |
48.9 |
10.2 |
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 |
20.3 |
– |
25.0 |
– |
42.9 |
– |
Less than 50 miles |
25.4 |
8.4 |
42.3 |
9.8 |
S |
S |
50 to 99 miles |
S |
S |
46.2 |
0.9 |
46.0 |
0.3 |
100 to 249 miles |
35.3 |
4.7 |
22.9 |
3.7 |
21.3 |
1.4 |
250 to 499 miles |
32.6 |
2.4 |
38.5 |
3.2 |
37.4 |
2.1 |
500 to 749 miles |
S |
S |
30.6 |
2.1 |
30.8 |
3.5 |
750 to 999 miles |
35.7 |
3.5 |
49.1 |
1.1 |
S |
S |
1,000 to 1,499 miles |
38.0 |
2.5 |
37.5 |
2.2 |
36.4 |
3.8 |
1,500 to 1,999 miles |
41.9 |
1.4 |
32.1 |
0.6 |
32.4 |
2.7 |
2,000 miles or more |
36.4 |
2.2 |
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 |
20.5 |
– |
26.9 |
– |
42.9 |
– |
Less than 50 miles |
26.1 |
8.5 |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
37.6 |
0.6 |
32.1 |
0.3 |
100 to 249 miles |
35.3 |
4.7 |
22.9 |
3.5 |
21.3 |
1.3 |
250 to 499 miles |
32.8 |
2.4 |
44.3 |
3.1 |
42.9 |
1.8 |
500 to 749 miles |
S |
S |
30.6 |
2.0 |
30.8 |
3.4 |
750 to 999 miles |
35.7 |
3.7 |
49.1 |
1.4 |
S |
S |
1,000 to 1,499 miles |
38.0 |
2.5 |
37.5 |
2.1 |
36.4 |
3.8 |
1,500 to 1,999 miles |
41.9 |
1.4 |
32.1 |
0.6 |
32.4 |
2.6 |
2,000 miles or more |
36.4 |
2.2 |
S |
S |
S |
S |
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 |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
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 |
24.6 |
– |
26.6 |
– |
49.5 |
– |
Less than 50 miles |
28.2 |
7.4 |
28.5 |
11.4 |
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 |
– |
– |
– |
– |
– |
– |
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.