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]

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 7.6 11.4 17.7
Less than 50 miles 5.6 1.6 19.2 4.8 19.9 0.5
50 to 99 miles 8.7 0.8 39.2 3.1 46.6 2.0
100 to 249 miles 7.3 1.6 15.4 2.4 15.2 2.4
250 to 499 miles 14.7 1.0 14.5 1.7 15.9 2.8
500 to 749 miles 11.6 0.6 9.5 0.7 9.4 2.2
750 to 999 miles 12.9 1.0 38.3 3.7 42.9 6.2
1,000 to 1,499 miles 13.4 0.6 18.2 0.5 18.6 1.6
1,500 to 1,999 miles 18.7 0.7 12.3 0.2 12.7 1.1
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 5.7 11.9 18.7
Less than 50 miles 5.6 1.4 20.3 5.1 18.9 0.5
50 to 99 miles 9.3 0.9 41.4 3.1 49.2 2.1
100 to 249 miles 7.7 1.6 16.3 2.5 15.8 2.5
250 to 499 miles 12.7 1.1 14.9 2.0 16.2 3.0
500 to 749 miles 9.0 0.5 10.4 0.6 10.3 2.1
750 to 999 miles 11.6 0.9 40.0 4.1 44.4 6.5
1,000 to 1,499 miles 12.9 0.6 16.6 0.4 16.9 1.8
1,500 to 1,999 miles 18.0 0.6 13.6 0.2 14.3 0.9
2,000 miles or more S S 43.2 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 6.0 13.9 8.0
Less than 50 miles 6.4 1.4 22.3 5.9 21.8 0.7
50 to 99 miles 9.2 0.8 20.2 1.4 21.1 0.7
100 to 249 miles 7.8 1.6 19.7 2.7 20.1 2.3
250 to 499 miles 13.6 1.1 20.0 1.6 18.1 2.8
500 to 749 miles 9.9 0.5 13.6 0.8 13.0 1.9
750 to 999 miles 11.8 0.8 15.8 1.4 15.3 2.8
1,000 to 1,499 miles 13.9 0.7 21.2 0.6 21.1 2.0
1,500 to 1,999 miles 20.2 0.7 15.9 0.3 16.0 1.4
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 36.1 31.2 19.8
Less than 50 miles 35.1 3.6 S S S S
50 to 99 miles S S S S S S
100 to 249 miles S S 35.9 2.8 36.1 1.1
250 to 499 miles 37.8 5.1 30.5 6.4 30.7 6.3
500 to 749 miles 20.3 7.7 20.1 6.3 22.2 6.8
750 to 999 miles 43.1 8.2 35.3 9.2 36.7 9.5
1,000 to 1,499 miles 48.5 2.2 38.8 1.7 39.3 2.3
1,500 to 1,999 miles S S 38.5 1.1 38.7 3.2
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 27.0 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 28.0 10.0 30.0 6.0 29.5 3.1
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 43.3 1.9 25.6 1.7 25.2 2.2
1,500 to 1,999 miles 25.8 3.0 37.3 3.3 37.1 9.9
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 24.0 31.6 34.3
Less than 50 miles 22.2 1.1 27.2 0.7 24.5
50 to 99 miles 20.4 0.5 19.9 0.9 17.0
100 to 249 miles 16.5 1.6 19.5 1.7 18.3 0.4
250 to 499 miles 32.9 1.8 41.0 2.2 40.6 1.0
500 to 749 miles 25.8 1.1 42.2 1.8 43.3 1.5
750 to 999 miles 26.6 2.7 32.5 4.3 33.0 4.4
1,000 to 1,499 miles 28.7 0.7 40.9 1.2 44.3 1.6
1,500 to 1,999 miles 29.4 1.3 30.5 2.7 31.1 5.2
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 20.3 19.9 23.1
Less than 50 miles 22.5 1.0 21.4 1.9 24.9
50 to 99 miles 21.3 0.4 22.2 0.8 19.3 0.2
100 to 249 miles 17.6 1.7 22.7 2.3 20.7 1.1
250 to 499 miles 24.3 1.6 25.4 2.0 26.1 1.2
500 to 749 miles 18.5 1.1 18.9 0.6 19.0 1.0
750 to 999 miles 30.8 3.3 27.5 3.0 26.6 2.6
1,000 to 1,499 miles 24.4 0.6 30.4 1.3 31.3 2.0
1,500 to 1,999 miles 23.4 1.3 29.3 1.6 29.3 2.9
2,000 miles or more 41.1 49.2 0.2 48.9 1.0

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 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 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 39.2 13.0 39.2 12.0
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 25.9 37.3 31.6
Less than 50 miles 31.4 5.4 S S S S
50 to 99 miles 45.6 2.3 37.5 6.7 36.7 3.9
100 to 249 miles 44.0 3.0 49.2 4.5 S S
250 to 499 miles S S 41.6 2.6 44.0 2.8
500 to 749 miles 34.0 3.2 S S S S
750 to 999 miles S S 40.3 6.2 39.6 7.3
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 42.6 0.8 33.1 1.8 33.1 5.8
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.