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 |
6.1 |
– |
19.9 |
– |
11.6 |
– |
Less than 50 miles |
11.4 |
3.8 |
33.9 |
5.7 |
23.0 |
1.3 |
50 to 99 miles |
16.3 |
1.4 |
14.9 |
1.6 |
15.4 |
0.5 |
100 to 249 miles |
10.8 |
2.2 |
14.9 |
2.4 |
13.7 |
1.9 |
250 to 499 miles |
15.8 |
1.7 |
24.8 |
2.5 |
30.1 |
4.8 |
500 to 749 miles |
12.7 |
0.8 |
10.1 |
1.1 |
9.8 |
3.0 |
750 to 999 miles |
20.4 |
0.9 |
28.1 |
0.6 |
27.2 |
2.7 |
1,000 to 1,499 miles |
15.3 |
0.3 |
16.5 |
– |
15.8 |
0.4 |
1,500 to 1,999 miles |
15.3 |
0.6 |
17.9 |
0.2 |
18.0 |
1.8 |
2,000 miles or more |
S |
S |
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 |
7.4 |
– |
20.3 |
– |
12.4 |
– |
Less than 50 miles |
14.1 |
4.1 |
34.1 |
5.8 |
23.2 |
1.5 |
50 to 99 miles |
20.0 |
1.9 |
15.6 |
1.6 |
15.7 |
0.6 |
100 to 249 miles |
10.7 |
2.6 |
14.6 |
2.3 |
13.5 |
1.9 |
250 to 499 miles |
18.7 |
2.0 |
27.1 |
2.7 |
32.6 |
5.4 |
500 to 749 miles |
14.3 |
1.0 |
12.7 |
1.2 |
12.1 |
3.5 |
750 to 999 miles |
23.6 |
0.9 |
30.3 |
0.7 |
29.5 |
3.1 |
1,000 to 1,499 miles |
19.1 |
0.4 |
18.8 |
– |
18.0 |
0.4 |
1,500 to 1,999 miles |
24.1 |
0.8 |
22.7 |
0.2 |
23.2 |
1.9 |
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 |
8.2 |
– |
25.3 |
– |
9.5 |
– |
Less than 50 miles |
14.5 |
4.4 |
37.4 |
6.4 |
28.5 |
2.8 |
50 to 99 miles |
20.2 |
2.0 |
16.5 |
1.9 |
15.5 |
0.9 |
100 to 249 miles |
12.6 |
3.0 |
17.5 |
2.7 |
16.7 |
2.8 |
250 to 499 miles |
18.5 |
1.8 |
17.3 |
1.7 |
17.0 |
2.2 |
500 to 749 miles |
16.4 |
1.1 |
17.3 |
1.1 |
17.5 |
2.9 |
750 to 999 miles |
25.0 |
0.9 |
37.2 |
1.3 |
36.7 |
4.0 |
1,000 to 1,499 miles |
24.2 |
0.4 |
19.8 |
0.1 |
18.8 |
0.6 |
1,500 to 1,999 miles |
27.1 |
0.8 |
23.0 |
0.2 |
23.6 |
2.4 |
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 |
18.1 |
– |
22.3 |
– |
28.2 |
– |
Less than 50 miles |
32.0 |
3.2 |
27.2 |
7.2 |
29.8 |
1.8 |
50 to 99 miles |
29.3 |
1.3 |
S |
S |
49.9 |
0.7 |
100 to 249 miles |
S |
S |
49.8 |
2.7 |
47.3 |
2.6 |
250 to 499 miles |
29.1 |
5.6 |
40.5 |
6.0 |
44.1 |
8.6 |
500 to 749 miles |
26.6 |
4.6 |
29.0 |
4.6 |
28.0 |
7.2 |
750 to 999 miles |
43.9 |
1.5 |
S |
S |
S |
S |
1,000 to 1,499 miles |
S |
S |
49.8 |
0.1 |
49.8 |
0.5 |
1,500 to 1,999 miles |
35.1 |
0.8 |
40.7 |
0.2 |
41.1 |
0.9 |
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 |
43.8 |
– |
33.2 |
– |
16.0 |
– |
Less than 50 miles |
S |
S |
S |
S |
46.3 |
0.6 |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
13.4 |
3.9 |
S |
S |
S |
S |
500 to 749 miles |
21.8 |
10.2 |
23.0 |
13.7 |
23.4 |
12.5 |
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 |
36.0 |
– |
36.5 |
– |
2,000 miles or more |
41.9 |
0.1 |
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 |
19.4 |
– |
32.8 |
– |
25.3 |
– |
Less than 50 miles |
41.5 |
2.5 |
23.5 |
0.7 |
30.1 |
– |
50 to 99 miles |
37.5 |
3.7 |
27.4 |
2.6 |
26.3 |
0.3 |
100 to 249 miles |
22.2 |
3.1 |
S |
S |
S |
S |
250 to 499 miles |
22.7 |
1.5 |
S |
S |
S |
S |
500 to 749 miles |
27.5 |
2.1 |
29.9 |
2.2 |
30.7 |
1.9 |
750 to 999 miles |
34.5 |
2.1 |
43.5 |
2.6 |
44.0 |
2.9 |
1,000 to 1,499 miles |
22.4 |
1.6 |
18.3 |
4.4 |
19.1 |
5.3 |
1,500 to 1,999 miles |
26.6 |
1.9 |
29.5 |
4.0 |
30.4 |
6.3 |
2,000 miles or more |
S |
S |
38.9 |
– |
43.6 |
0.3 |
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 |
15.4 |
– |
16.7 |
– |
17.2 |
– |
Less than 50 miles |
41.5 |
2.6 |
23.5 |
1.1 |
30.1 |
0.1 |
50 to 99 miles |
37.5 |
3.8 |
24.5 |
2.6 |
22.4 |
0.5 |
100 to 249 miles |
21.8 |
3.1 |
26.5 |
2.2 |
25.4 |
1.1 |
250 to 499 miles |
16.8 |
1.7 |
29.9 |
3.6 |
29.6 |
3.2 |
500 to 749 miles |
23.1 |
2.5 |
20.0 |
2.6 |
20.6 |
2.6 |
750 to 999 miles |
15.7 |
1.5 |
14.6 |
1.5 |
14.5 |
2.0 |
1,000 to 1,499 miles |
32.9 |
0.8 |
23.8 |
1.0 |
24.1 |
1.3 |
1,500 to 1,999 miles |
28.3 |
1.8 |
30.3 |
2.4 |
30.8 |
4.6 |
2,000 miles or more |
S |
S |
43.7 |
– |
43.9 |
0.5 |
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 |
37.3 |
– |
36.2 |
– |
27.4 |
– |
Less than 50 miles |
– |
– |
– |
– |
– |
– |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
45.8 |
2.9 |
S |
S |
S |
S |
250 to 499 miles |
47.1 |
4.4 |
S |
S |
S |
S |
500 to 749 miles |
46.7 |
5.1 |
39.6 |
2.7 |
38.9 |
1.9 |
750 to 999 miles |
S |
S |
S |
S |
S |
S |
1,000 to 1,499 miles |
27.1 |
9.7 |
19.3 |
6.4 |
20.3 |
6.9 |
1,500 to 1,999 miles |
29.5 |
8.4 |
31.1 |
6.8 |
32.0 |
8.4 |
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 |
32.8 |
– |
26.2 |
– |
32.0 |
– |
Less than 50 miles |
44.3 |
10.2 |
35.2 |
12.5 |
47.5 |
6.6 |
50 to 99 miles |
S |
S |
S |
S |
S |
S |
100 to 249 miles |
47.2 |
6.5 |
33.0 |
10.2 |
32.1 |
9.6 |
250 to 499 miles |
41.0 |
3.5 |
S |
S |
S |
S |
500 to 749 miles |
39.4 |
1.7 |
S |
S |
S |
S |
750 to 999 miles |
39.8 |
1.0 |
46.6 |
0.4 |
46.6 |
2.8 |
1,000 to 1,499 miles |
47.8 |
0.4 |
49.0 |
0.3 |
49.0 |
0.9 |
1,500 to 1,999 miles |
47.6 |
2.1 |
35.0 |
0.7 |
35.2 |
3.5 |
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.