Table B-4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size for CBSA of Origin: 2002
Monday, July 2, 2012
Table B-4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size 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
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
49.5 |
– |
12.5 |
– |
11.2 |
– |
12.9 |
Less than 50 lbs |
49.3 |
1.3 |
15.3 |
0.1 |
25.9 |
0.7 |
11.1 |
50 to 99 lbs |
S |
S |
15.5 |
0.1 |
23.6 |
0.4 |
20.5 |
100 to 499 lbs |
S |
S |
14.5 |
0.6 |
22.8 |
0.9 |
13.4 |
500 to 749 lbs |
20.0 |
0.8 |
12.0 |
0.3 |
17.1 |
0.2 |
14.9 |
750 to 999 lbs |
15.0 |
0.6 |
14.4 |
0.2 |
13.3 |
0.3 |
S |
1,000 to 9,999 lbs |
S |
S |
14.5 |
2.4 |
13.1 |
2.6 |
18.9 |
10,000 to 49,999 lbs |
S |
S |
18.0 |
3.8 |
12.0 |
2.5 |
21.4 |
50,000 to 99,999 lbs |
18.4 |
0.7 |
23.8 |
4.6 |
22.7 |
2.2 |
19.8 |
100,000 lbs or more |
41.9 |
1.1 |
35.9 |
2.5 |
S |
S |
30.5 |
Single modes
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
S |
S |
12.8 |
– |
12.1 |
– |
15.4 |
Less than 50 lbs |
S |
S |
25.4 |
– |
34.3 |
– |
30.7 |
50 to 99 lbs |
S |
S |
22.5 |
0.1 |
28.9 |
– |
16.0 |
100 to 499 lbs |
S |
S |
16.7 |
0.6 |
30.7 |
1.1 |
11.9 |
500 to 749 lbs |
23.1 |
0.9 |
12.5 |
0.3 |
20.3 |
0.3 |
14.5 |
750 to 999 lbs |
18.9 |
0.7 |
15.3 |
0.3 |
13.4 |
0.2 |
37.0 |
1,000 to 9,999 lbs |
S |
S |
15.5 |
2.5 |
11.8 |
2.7 |
17.3 |
10,000 to 49,999 lbs |
S |
S |
18.3 |
3.7 |
12.6 |
2.7 |
21.7 |
50,000 to 99,999 lbs |
18.6 |
0.9 |
23.8 |
4.8 |
24.7 |
2.3 |
19.5 |
100,000 lbs or more |
39.9 |
1.7 |
34.4 |
2.5 |
S |
S |
33.2 |
Truck
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
48.0 |
– |
12.6 |
– |
11.0 |
– |
13.0 |
Less than 50 lbs |
24.0 |
0.8 |
26.3 |
– |
14.2 |
– |
37.0 |
50 to 99 lbs |
17.0 |
0.4 |
21.2 |
0.1 |
17.9 |
– |
18.8 |
100 to 499 lbs |
S |
S |
16.1 |
0.6 |
28.2 |
1.0 |
11.5 |
500 to 749 lbs |
23.7 |
0.9 |
12.4 |
0.3 |
20.4 |
0.4 |
14.6 |
750 to 999 lbs |
19.3 |
0.6 |
15.4 |
0.3 |
13.6 |
0.2 |
37.2 |
1,000 to 9,999 lbs |
S |
S |
15.4 |
2.5 |
10.7 |
2.4 |
18.8 |
10,000 to 49,999 lbs |
S |
S |
18.2 |
3.7 |
11.5 |
2.2 |
22.4 |
50,000 to 99,999 lbs |
18.6 |
0.9 |
23.9 |
4.9 |
24.6 |
2.4 |
18.4 |
100,000 lbs or more |
41.5 |
1.7 |
31.1 |
2.4 |
S |
S |
29.4 |
Rail
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
S |
S |
S |
S |
S |
S |
S |
Less than 50 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
50 to 99 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
100 to 499 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
500 to 749 lbs |
– |
– |
– |
– |
– |
– |
– |
750 to 999 lbs |
– |
– |
– |
– |
– |
– |
– |
1,000 to 9,999 lbs |
S |
S |
S |
S |
S |
S |
30.5 |
10,000 to 49,999 lbs |
S |
S |
S |
S |
S |
S |
30.5 |
50,000 to 99,999 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
100,000 lbs or more |
S |
S |
S |
S |
S |
S |
29.9 |
All other Single modes
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
S |
S |
S |
S |
S |
S |
8.2 |
Less than 50 lbs |
S |
S |
S |
S |
S |
S |
8.0 |
50 to 99 lbs |
S |
S |
S |
S |
S |
S |
25.0 |
100 to 499 lbs |
S |
S |
S |
S |
S |
S |
17.4 |
500 to 749 lbs |
S |
S |
S |
S |
S |
S |
37.0 |
750 to 999 lbs |
S |
S |
S |
S |
S |
S |
44.8 |
1,000 to 9,999 lbs |
49.7 |
2.8 |
S |
S |
S |
S |
27.9 |
10,000 to 49,999 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
50,000 to 99,999 lbs |
– |
– |
– |
– |
– |
– |
– |
100,000 lbs or more |
– |
– |
– |
– |
– |
– |
– |
Multiple modes
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
44.4 |
– |
15.4 |
– |
22.4 |
– |
7.0 |
Less than 50 lbs |
42.7 |
4.2 |
21.1 |
5.0 |
28.5 |
4.2 |
6.5 |
50 to 99 lbs |
S |
S |
14.4 |
1.4 |
27.6 |
1.6 |
13.5 |
100 to 499 lbs |
41.7 |
3.2 |
22.2 |
4.8 |
26.4 |
4.6 |
11.3 |
500 to 749 lbs |
S |
S |
44.0 |
1.9 |
37.7 |
1.3 |
38.9 |
750 to 999 lbs |
S |
S |
48.8 |
0.8 |
S |
S |
21.8 |
1,000 to 9,999 lbs |
44.1 |
0.2 |
38.3 |
1.5 |
39.0 |
1.9 |
46.2 |
10,000 to 49,999 lbs |
S |
S |
S |
S |
S |
S |
29.8 |
50,000 to 99,999 lbs |
– |
– |
– |
– |
– |
– |
– |
100,000 lbs or more |
S |
S |
S |
S |
S |
S |
31.6 |
Parcel, USPS or courier
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
44.5 |
– |
16.9 |
– |
24.7 |
– |
7.0 |
Less than 50 lbs |
42.7 |
4.3 |
21.1 |
5.3 |
28.5 |
5.1 |
6.5 |
50 to 99 lbs |
S |
S |
14.4 |
1.7 |
27.6 |
1.9 |
13.5 |
100 to 499 lbs |
41.7 |
3.2 |
22.2 |
5.2 |
26.5 |
4.5 |
11.1 |
500 to 749 lbs |
S |
S |
44.0 |
1.9 |
37.8 |
1.3 |
38.6 |
750 to 999 lbs |
S |
S |
48.8 |
0.9 |
S |
S |
21.8 |
1,000 to 9,999 lbs |
S |
S |
S |
S |
S |
S |
29.7 |
10,000 to 49,999 lbs |
– |
– |
– |
– |
– |
– |
– |
50,000 to 99,999 lbs |
– |
– |
– |
– |
– |
– |
– |
100,000 lbs or more |
– |
– |
– |
– |
– |
– |
– |
All other multiple modes
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
30.7 |
– |
S |
S |
S |
S |
37.3 |
Less than 50 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
50 to 99 lbs |
– |
– |
– |
– |
– |
– |
– |
100 to 499 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
500 to 749 lbs |
S |
S |
S |
S |
S |
S |
31.6 |
750 to 999 lbs |
– |
– |
– |
– |
– |
– |
– |
1,000 to 9,999 lbs |
46.6 |
12.5 |
48.2 |
14.1 |
44.7 |
14.0 |
42.3 |
10,000 to 49,999 lbs |
S |
S |
S |
S |
S |
S |
29.8 |
50,000 to 99,999 lbs |
– |
– |
– |
– |
– |
– |
– |
100,000 lbs or more |
S |
S |
S |
S |
S |
S |
31.6 |
Other and unknown modes
Shipment Weight |
Value |
Tons |
Ton-miles |
CV of average miles per shipment |
---|
CV |
Std. error of percent |
CV |
Std. error of percent |
CV |
Std. error of percent |
---|
All shipment sizes |
40.6 |
– |
29.3 |
– |
S |
S |
48.2 |
Less than 50 lbs |
23.2 |
4.6 |
24.2 |
0.7 |
37.1 |
0.1 |
S |
50 to 99 lbs |
35.5 |
1.4 |
44.1 |
0.4 |
37.1 |
– |
S |
100 to 499 lbs |
S |
S |
40.3 |
1.4 |
S |
S |
44.4 |
500 to 749 lbs |
S |
S |
S |
S |
S |
S |
S |
750 to 999 lbs |
S |
S |
S |
S |
S |
S |
30.7 |
1,000 to 9,999 lbs |
S |
S |
44.2 |
5.6 |
S |
S |
21.2 |
10,000 to 49,999 lbs |
S |
S |
31.8 |
10.0 |
S |
S |
28.3 |
50,000 to 99,999 lbs |
S |
S |
S |
S |
S |
S |
S |
100,000 lbs or more |
S |
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.