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 |
9.9 |
– |
22.5 |
– |
14.9 |
– |
Less than 50 miles |
11.5 |
1.6 |
33.7 |
4.9 |
27.4 |
2.3 |
50 to 99 miles |
15.1 |
1.0 |
32.7 |
3.0 |
30.9 |
1.9 |
100 to 249 miles |
10.5 |
1.5 |
14.9 |
1.8 |
13.8 |
1.6 |
250 to 499 miles |
11.7 |
1.3 |
13.9 |
1.4 |
14.5 |
1.7 |
500 to 749 miles |
12.2 |
1.3 |
11.1 |
1.0 |
12.5 |
3.0 |
750 to 999 miles |
29.7 |
2.4 |
24.7 |
0.4 |
25.5 |
1.8 |
1,000 to 1,499 miles |
24.5 |
0.6 |
26.5 |
– |
27.1 |
0.7 |
1,500 to 1,999 miles |
42.3 |
2.0 |
39.4 |
0.5 |
38.1 |
3.4 |
2,000 miles or more |
39.6 |
– |
S |
S |
S |
S |
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 |
10.6 |
– |
22.9 |
– |
15.5 |
– |
Less than 50 miles |
11.3 |
2.0 |
33.9 |
4.9 |
27.6 |
2.4 |
50 to 99 miles |
18.5 |
1.0 |
33.2 |
3.0 |
31.4 |
2.0 |
100 to 249 miles |
13.0 |
1.7 |
15.1 |
1.8 |
14.0 |
1.8 |
250 to 499 miles |
13.1 |
1.8 |
14.2 |
1.4 |
14.8 |
1.9 |
500 to 749 miles |
10.0 |
1.4 |
10.5 |
1.0 |
12.1 |
3.0 |
750 to 999 miles |
38.6 |
2.8 |
27.1 |
0.4 |
28.3 |
1.9 |
1,000 to 1,499 miles |
29.7 |
0.6 |
29.0 |
– |
28.1 |
0.6 |
1,500 to 1,999 miles |
S |
S |
44.0 |
0.5 |
43.1 |
3.8 |
2,000 miles or more |
S |
S |
S |
S |
S |
S |
Truck
Distance Shipped |
Value |
Tons |
Ton-miles |
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
All distances |
11.3 |
– |
23.1 |
– |
15.5 |
– |
Less than 50 miles |
11.3 |
2.1 |
34.0 |
4.9 |
27.6 |
2.4 |
50 to 99 miles |
18.6 |
1.0 |
33.2 |
3.0 |
31.4 |
2.0 |
100 to 249 miles |
13.8 |
1.7 |
15.1 |
1.8 |
14.0 |
1.9 |
250 to 499 miles |
13.8 |
1.8 |
13.8 |
1.3 |
14.0 |
2.0 |
500 to 749 miles |
8.3 |
1.2 |
9.4 |
0.9 |
9.9 |
2.8 |
750 to 999 miles |
41.0 |
2.9 |
27.1 |
0.4 |
28.3 |
1.9 |
1,000 to 1,499 miles |
26.7 |
0.6 |
29.0 |
– |
28.2 |
0.6 |
1,500 to 1,999 miles |
S |
S |
43.6 |
0.5 |
42.7 |
3.8 |
2,000 miles or more |
S |
S |
S |
S |
S |
S |
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 |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
S |
S |
S |
S |
S |
S |
750 to 999 miles |
– |
– |
– |
– |
– |
– |
1,000 to 1,499 miles |
– |
– |
– |
– |
– |
– |
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 |
S |
S |
S |
S |
41.7 |
– |
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 |
48.3 |
6.4 |
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 |
27.5 |
– |
34.1 |
– |
42.7 |
– |
Less than 50 miles |
31.0 |
1.3 |
28.1 |
0.9 |
19.6 |
– |
50 to 99 miles |
44.6 |
1.6 |
32.2 |
0.9 |
30.2 |
0.1 |
100 to 249 miles |
22.4 |
2.9 |
14.7 |
3.5 |
15.1 |
1.5 |
250 to 499 miles |
32.4 |
2.8 |
17.3 |
5.0 |
16.0 |
4.9 |
500 to 749 miles |
30.7 |
3.1 |
46.0 |
3.7 |
S |
S |
750 to 999 miles |
39.0 |
2.3 |
48.4 |
2.7 |
S |
S |
1,000 to 1,499 miles |
47.9 |
1.2 |
S |
S |
S |
S |
1,500 to 1,999 miles |
34.9 |
2.1 |
46.6 |
3.3 |
47.8 |
5.9 |
2,000 miles or more |
43.1 |
0.5 |
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 |
27.7 |
– |
11.4 |
– |
12.9 |
– |
Less than 50 miles |
31.0 |
3.0 |
28.1 |
3.3 |
19.6 |
– |
50 to 99 miles |
44.6 |
1.6 |
32.2 |
1.0 |
30.2 |
0.1 |
100 to 249 miles |
22.4 |
2.5 |
17.8 |
1.7 |
17.6 |
0.8 |
250 to 499 miles |
32.4 |
4.3 |
17.3 |
3.2 |
16.0 |
3.5 |
500 to 749 miles |
35.0 |
2.7 |
17.9 |
2.7 |
18.3 |
2.9 |
750 to 999 miles |
38.5 |
1.6 |
14.9 |
2.0 |
15.3 |
2.8 |
1,000 to 1,499 miles |
S |
S |
21.2 |
0.5 |
20.3 |
1.1 |
1,500 to 1,999 miles |
32.5 |
2.0 |
24.8 |
2.0 |
24.6 |
5.2 |
2,000 miles or more |
S |
S |
46.8 |
0.4 |
43.5 |
1.3 |
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 |
S |
S |
S |
S |
S |
S |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
50 to 99 miles |
– |
– |
– |
– |
– |
– |
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 |
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 |
28.6 |
– |
32.0 |
– |
40.7 |
– |
Less than 50 miles |
27.5 |
10.4 |
47.6 |
11.7 |
S |
S |
50 to 99 miles |
S |
S |
38.5 |
9.2 |
36.3 |
11.2 |
100 to 249 miles |
S |
S |
40.4 |
3.3 |
40.0 |
4.3 |
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.