Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002

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.