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 7.8 28.8 12.0
Less than 50 miles 12.7 3.4 42.9 6.6 45.1 3.2
50 to 99 miles 26.5 2.1 22.7 0.6 21.8 0.4
100 to 249 miles 16.2 1.9 34.5 3.2 35.9 3.2
250 to 499 miles 11.8 1.7 13.4 2.8 14.8 2.7
500 to 749 miles 17.4 1.0 24.1 1.7 24.8 3.2
750 to 999 miles 20.3 0.5 48.9 0.5 S S
1,000 to 1,499 miles 12.4 0.7 19.7 0.6 20.3 1.7
1,500 to 1,999 miles 30.1 0.6 38.4 0.4 41.7 2.1
2,000 miles or more 15.6 1.0 22.5 0.2 22.3 2.9

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 8.1 29.0 12.5
Less than 50 miles 13.4 4.1 42.9 6.6 45.2 3.5
50 to 99 miles 27.3 2.2 23.7 0.6 22.8 0.5
100 to 249 miles 16.0 2.1 34.6 3.2 36.0 3.1
250 to 499 miles 12.1 1.5 13.4 2.8 14.9 2.7
500 to 749 miles 18.5 1.3 24.9 1.6 25.7 3.2
750 to 999 miles 23.0 0.5 49.6 0.5 S S
1,000 to 1,499 miles 14.0 0.6 19.7 0.6 20.3 1.7
1,500 to 1,999 miles 36.9 0.7 38.9 0.4 42.2 2.4
2,000 miles or more 18.2 1.1 26.2 0.2 26.1 2.4

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 8.7 33.3 12.8
Less than 50 miles 13.4 4.7 43.1 5.8 45.4 4.1
50 to 99 miles 27.3 2.3 24.3 0.6 23.5 0.5
100 to 249 miles 15.3 2.0 14.9 1.9 15.3 1.3
250 to 499 miles 14.3 1.9 14.5 2.5 14.6 2.5
500 to 749 miles 19.9 1.4 19.6 0.8 20.0 1.8
750 to 999 miles 23.4 0.5 27.7 0.3 27.6 1.1
1,000 to 1,499 miles 19.1 0.8 21.2 0.3 22.1 1.4
1,500 to 1,999 miles 40.1 0.7 22.2 0.2 22.2 1.0
2,000 miles or more 29.3 1.2 30.4 0.3 30.5 3.0

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 20.8 49.1 38.3
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles 44.4 7.7 S S S S
250 to 499 miles 23.8 5.7 35.6 6.3 37.9 6.1
500 to 749 miles 36.4 4.0 S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles 37.4 5.0 37.1 2.8 37.7 5.7
1,500 to 1,999 miles S S S S S S
2,000 miles or more S S S S S S

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 38.5 42.3 46.8
Less than 50 miles
50 to 99 miles
100 to 249 miles S S S S 46.0 0.6
250 to 499 miles 26.9 9.8 35.2 9.6 40.6 7.5
500 to 749 miles S S S S 47.4 0.9
750 to 999 miles S S S S S S
1,000 to 1,499 miles S S 44.3 4.9 44.8 5.9
1,500 to 1,999 miles S S S S S S
2,000 miles or more 49.7 7.8 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 18.3 39.8 34.2
Less than 50 miles 31.4 6.1 30.2 4.6 30.8 0.2
50 to 99 miles 43.3 1.9 S S S S
100 to 249 miles 48.2 2.5 34.2 1.5 31.3 0.6
250 to 499 miles 18.7 4.4 20.9 4.2 21.9 2.3
500 to 749 miles 37.8 2.5 S S S S
750 to 999 miles 31.3 1.3 32.4 1.1 31.5 0.9
1,000 to 1,499 miles 36.4 3.1 44.8 5.4 44.7 8.8
1,500 to 1,999 miles 46.1 1.4 27.9 0.4 28.1 0.6
2,000 miles or more 21.1 3.1 36.8 6.5 36.8 9.9

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 18.5 21.3 29.4
Less than 50 miles 31.4 6.1 30.2 5.2 30.8 0.3
50 to 99 miles 43.3 1.9 S S S S
100 to 249 miles 48.2 2.5 34.3 2.3 31.4 1.8
250 to 499 miles 18.7 4.4 20.9 2.7 21.9 2.2
500 to 749 miles 38.7 2.5 48.7 3.2 47.5 2.1
750 to 999 miles 31.3 1.3 32.4 1.2 31.5 0.8
1,000 to 1,499 miles 38.6 3.0 35.8 1.5 35.8 1.7
1,500 to 1,999 miles 46.1 1.4 27.9 0.7 28.1 2.0
2,000 miles or more 19.8 3.0 32.6 2.6 31.7 4.6

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 36.7 S S 47.5
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 S S S S S S
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 41.9 18.0 42.2 15.2

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 S S 37.9 31.4
Less than 50 miles S S 47.5 12.1 39.1 4.4
50 to 99 miles S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles 32.3 14.2 41.4 10.1 46.4 10.6
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.