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]
Excel | CSV
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 |
12.4 |
– |
37.5 |
– |
28.8 |
– |
Less than 50 miles |
13.5 |
2.8 |
S |
S |
27.1 |
1.8 |
50 to 99 miles |
13.2 |
0.9 |
23.1 |
1.9 |
24.6 |
0.5 |
100 to 249 miles |
19.2 |
2.2 |
32.3 |
2.8 |
34.1 |
1.1 |
250 to 499 miles |
14.2 |
1.3 |
18.3 |
2.2 |
21.5 |
2.8 |
500 to 749 miles |
15.5 |
1.3 |
13.8 |
1.6 |
13.5 |
2.4 |
750 to 999 miles |
26.2 |
1.5 |
33.7 |
1.5 |
34.9 |
2.0 |
1,000 to 1,499 miles |
25.5 |
3.7 |
40.9 |
2.0 |
42.6 |
5.5 |
1,500 to 1,999 miles |
S |
S |
48.6 |
– |
S |
S |
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 |
13.3 |
– |
37.7 |
– |
31.0 |
– |
Less than 50 miles |
14.6 |
3.2 |
S |
S |
26.8 |
1.8 |
50 to 99 miles |
15.4 |
1.0 |
23.9 |
2.1 |
25.5 |
0.6 |
100 to 249 miles |
20.3 |
2.4 |
35.1 |
2.7 |
37.4 |
1.3 |
250 to 499 miles |
16.4 |
1.6 |
18.8 |
2.2 |
22.0 |
2.8 |
500 to 749 miles |
17.7 |
1.4 |
14.5 |
1.6 |
14.2 |
2.4 |
750 to 999 miles |
29.0 |
1.7 |
34.4 |
1.5 |
35.5 |
1.9 |
1,000 to 1,499 miles |
27.3 |
3.8 |
45.7 |
1.7 |
47.6 |
4.9 |
1,500 to 1,999 miles |
S |
S |
S |
S |
S |
S |
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 |
13.5 |
– |
40.2 |
– |
14.2 |
– |
Less than 50 miles |
14.6 |
3.0 |
S |
S |
26.8 |
2.3 |
50 to 99 miles |
15.4 |
1.3 |
23.9 |
2.6 |
25.5 |
1.2 |
100 to 249 miles |
21.3 |
2.8 |
37.0 |
3.4 |
40.8 |
4.0 |
250 to 499 miles |
17.9 |
1.6 |
15.8 |
1.8 |
15.3 |
2.4 |
500 to 749 miles |
24.6 |
1.5 |
23.6 |
1.5 |
23.5 |
2.2 |
750 to 999 miles |
17.1 |
0.8 |
25.5 |
1.5 |
25.7 |
2.4 |
1,000 to 1,499 miles |
33.9 |
3.8 |
22.8 |
1.3 |
22.4 |
3.9 |
1,500 to 1,999 miles |
41.1 |
– |
48.3 |
– |
48.8 |
0.1 |
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 |
49.8 |
– |
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 |
S |
S |
S |
S |
S |
S |
500 to 749 miles |
49.9 |
9.1 |
35.6 |
9.8 |
36.3 |
10.3 |
750 to 999 miles |
S |
S |
S |
S |
S |
S |
1,000 to 1,499 miles |
50.0 |
9.4 |
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 |
22.3 |
– |
24.5 |
– |
26.6 |
– |
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 |
33.7 |
9.3 |
34.8 |
8.5 |
34.8 |
8.0 |
750 to 999 miles |
S |
S |
S |
S |
S |
S |
1,000 to 1,499 miles |
31.2 |
9.3 |
31.1 |
7.7 |
34.1 |
8.3 |
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 |
14.7 |
– |
23.4 |
– |
21.3 |
– |
Less than 50 miles |
29.5 |
0.8 |
48.2 |
1.7 |
46.5 |
– |
50 to 99 miles |
27.2 |
1.1 |
S |
S |
S |
S |
100 to 249 miles |
20.7 |
2.4 |
29.7 |
2.1 |
27.7 |
0.9 |
250 to 499 miles |
22.0 |
2.0 |
35.2 |
1.9 |
35.5 |
1.4 |
500 to 749 miles |
18.6 |
3.4 |
23.4 |
2.8 |
23.6 |
2.8 |
750 to 999 miles |
21.2 |
2.7 |
32.3 |
1.6 |
32.2 |
2.3 |
1,000 to 1,499 miles |
20.5 |
2.6 |
26.2 |
6.2 |
28.7 |
6.3 |
1,500 to 1,999 miles |
32.2 |
0.4 |
40.4 |
0.5 |
40.8 |
1.0 |
2,000 miles or more |
S |
S |
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 |
15.4 |
– |
27.2 |
– |
25.9 |
– |
Less than 50 miles |
29.7 |
0.8 |
S |
S |
48.0 |
– |
50 to 99 miles |
27.2 |
1.1 |
S |
S |
S |
S |
100 to 249 miles |
20.9 |
2.8 |
31.2 |
2.9 |
29.5 |
1.6 |
250 to 499 miles |
22.0 |
2.6 |
35.2 |
1.9 |
35.5 |
2.2 |
500 to 749 miles |
18.6 |
3.3 |
23.4 |
2.4 |
23.6 |
2.1 |
750 to 999 miles |
21.2 |
2.7 |
32.3 |
1.4 |
32.2 |
1.8 |
1,000 to 1,499 miles |
23.0 |
3.2 |
27.2 |
3.3 |
27.3 |
4.4 |
1,500 to 1,999 miles |
32.2 |
0.4 |
40.4 |
0.4 |
40.8 |
1.0 |
2,000 miles or more |
S |
S |
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 |
– |
– |
– |
– |
– |
– |
100 to 249 miles |
S |
S |
S |
S |
S |
S |
250 to 499 miles |
– |
– |
– |
– |
– |
– |
500 to 749 miles |
– |
– |
– |
– |
– |
– |
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 |
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 |
33.8 |
– |
S |
S |
S |
S |
Less than 50 miles |
26.5 |
10.6 |
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 |
45.8 |
3.7 |
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 |
– |
– |
– |
– |
– |
– |
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.