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 |
13.0 |
– |
19.6 |
– |
20.6 |
– |
Less than 50 miles |
20.5 |
4.0 |
27.2 |
6.0 |
19.0 |
1.0 |
50 to 99 miles |
16.7 |
0.9 |
46.3 |
2.2 |
47.0 |
0.8 |
100 to 249 miles |
10.5 |
2.5 |
24.4 |
2.1 |
23.9 |
1.5 |
250 to 499 miles |
28.8 |
2.8 |
17.5 |
2.9 |
18.2 |
4.5 |
500 to 749 miles |
23.0 |
0.8 |
26.6 |
0.6 |
25.9 |
1.5 |
750 to 999 miles |
14.5 |
0.6 |
28.5 |
0.4 |
27.1 |
1.4 |
1,000 to 1,499 miles |
26.7 |
0.6 |
49.3 |
0.6 |
47.4 |
2.5 |
1,500 to 1,999 miles |
19.8 |
0.6 |
27.9 |
0.2 |
27.7 |
2.3 |
2,000 miles or more |
35.0 |
0.5 |
39.8 |
0.1 |
39.6 |
1.3 |
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 |
15.0 |
– |
24.1 |
– |
23.8 |
– |
Less than 50 miles |
27.1 |
4.3 |
33.4 |
6.4 |
18.5 |
1.2 |
50 to 99 miles |
19.6 |
1.0 |
48.0 |
2.3 |
48.9 |
1.0 |
100 to 249 miles |
12.0 |
2.6 |
30.2 |
2.9 |
29.9 |
1.7 |
250 to 499 miles |
37.4 |
3.7 |
20.0 |
2.5 |
19.9 |
4.7 |
500 to 749 miles |
30.8 |
1.1 |
26.8 |
0.6 |
26.8 |
1.3 |
750 to 999 miles |
21.1 |
0.5 |
21.2 |
0.2 |
21.3 |
1.2 |
1,000 to 1,499 miles |
31.8 |
0.7 |
35.6 |
0.4 |
34.5 |
2.0 |
1,500 to 1,999 miles |
33.3 |
0.6 |
41.6 |
0.3 |
40.2 |
2.2 |
2,000 miles or more |
41.1 |
0.5 |
39.9 |
0.1 |
39.8 |
1.8 |
Truck
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
15.6 |
– |
24.6 |
– |
27.3 |
– |
Less than 50 miles |
27.4 |
4.3 |
32.3 |
6.5 |
19.1 |
1.3 |
50 to 99 miles |
19.8 |
1.0 |
49.6 |
2.4 |
S |
S |
100 to 249 miles |
12.1 |
2.7 |
30.6 |
3.1 |
30.5 |
2.1 |
250 to 499 miles |
38.3 |
3.8 |
23.9 |
2.0 |
23.3 |
2.6 |
500 to 749 miles |
31.1 |
1.1 |
27.4 |
0.6 |
27.4 |
1.1 |
750 to 999 miles |
21.9 |
0.6 |
21.8 |
0.2 |
22.1 |
1.5 |
1,000 to 1,499 miles |
38.3 |
0.3 |
36.0 |
0.4 |
34.9 |
2.1 |
1,500 to 1,999 miles |
37.1 |
0.6 |
45.4 |
0.2 |
43.8 |
1.8 |
2,000 miles or more |
41.3 |
0.5 |
40.0 |
0.1 |
39.9 |
1.9 |
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 |
38.6 |
– |
39.0 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
38.4 |
13.5 |
49.0 |
16.8 |
S |
S |
500 to 749 miles |
40.4 |
9.4 |
40.9 |
10.0 |
39.6 |
9.7 |
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 |
– |
– |
– |
– |
– |
– |
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 |
39.2 |
– |
S |
S |
39.6 |
– |
Less than 50 miles |
S |
S |
S |
S |
S |
S |
50 to 99 miles |
34.9 |
2.2 |
42.2 |
2.4 |
39.6 |
6.1 |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
49.0 |
10.5 |
S |
S |
S |
S |
750 to 999 miles |
30.0 |
7.6 |
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 |
38.1 |
1.0 |
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 |
21.0 |
– |
30.9 |
– |
49.8 |
– |
Less than 50 miles |
S |
S |
48.4 |
5.0 |
43.9 |
0.3 |
50 to 99 miles |
41.8 |
1.7 |
29.4 |
1.0 |
30.0 |
0.3 |
100 to 249 miles |
39.4 |
3.1 |
35.7 |
3.1 |
41.8 |
1.4 |
250 to 499 miles |
18.1 |
3.1 |
22.8 |
5.3 |
26.0 |
4.8 |
500 to 749 miles |
24.2 |
5.5 |
21.2 |
2.9 |
22.7 |
4.2 |
750 to 999 miles |
22.2 |
2.2 |
46.7 |
3.5 |
49.2 |
3.2 |
1,000 to 1,499 miles |
25.5 |
1.0 |
14.5 |
0.3 |
14.7 |
0.7 |
1,500 to 1,999 miles |
30.1 |
1.9 |
S |
S |
S |
S |
2,000 miles or more |
35.4 |
1.4 |
48.1 |
1.3 |
47.8 |
4.9 |
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 |
22.3 |
– |
22.6 |
– |
26.5 |
– |
Less than 50 miles |
S |
S |
49.1 |
4.7 |
44.1 |
0.3 |
50 to 99 miles |
41.8 |
1.7 |
29.4 |
1.2 |
30.0 |
0.3 |
100 to 249 miles |
41.8 |
3.1 |
39.6 |
4.4 |
45.3 |
2.4 |
250 to 499 miles |
18.7 |
3.6 |
23.7 |
4.6 |
24.5 |
3.0 |
500 to 749 miles |
24.6 |
5.6 |
27.5 |
2.2 |
28.9 |
2.9 |
750 to 999 miles |
22.5 |
2.5 |
47.0 |
2.8 |
47.8 |
5.1 |
1,000 to 1,499 miles |
25.5 |
1.1 |
14.5 |
0.5 |
14.7 |
1.1 |
1,500 to 1,999 miles |
34.1 |
1.7 |
S |
S |
S |
S |
2,000 miles or more |
35.0 |
1.5 |
44.8 |
1.2 |
46.9 |
4.1 |
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 |
45.4 |
– |
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 |
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 |
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 |
38.1 |
– |
39.0 |
– |
S |
S |
Less than 50 miles |
38.8 |
13.3 |
36.9 |
10.3 |
41.0 |
14.2 |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
36.0 |
3.1 |
S |
S |
48.9 |
4.9 |
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 |
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.