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 4.3 13.6 16.1
Less than 50 miles 13.1 2.9 15.3 3.7 16.1 1.4
50 to 99 miles 10.6 1.7 36.5 2.7 31.4 2.5
100 to 249 miles 9.7 1.2 12.3 1.0 11.1 1.3
250 to 499 miles 10.1 1.3 23.4 2.1 22.3 3.9
500 to 749 miles 7.7 1.2 22.1 2.1 22.9 4.1
750 to 999 miles 6.3 0.4 25.6 0.8 26.0 2.0
1,000 to 1,499 miles 12.2 0.4 20.5 0.2 19.9 1.2
1,500 to 1,999 miles 11.3 0.6 26.8 0.5 27.0 2.7
2,000 miles or more 33.9 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 5.0 14.0 16.6
Less than 50 miles 13.5 3.1 15.3 3.7 16.1 1.5
50 to 99 miles 10.1 1.9 36.6 2.7 31.6 2.6
100 to 249 miles 10.2 1.3 12.5 1.0 11.3 1.3
250 to 499 miles 10.8 1.4 23.6 2.1 22.5 4.1
500 to 749 miles 10.2 1.2 22.8 1.8 23.7 4.2
750 to 999 miles 8.9 0.5 28.0 0.9 28.7 2.4
1,000 to 1,499 miles 15.8 0.5 23.2 0.2 22.6 1.3
1,500 to 1,999 miles 12.1 0.5 31.9 0.5 32.3 2.8
2,000 miles or more S S S S 40.9

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 5.1 15.7 13.6
Less than 50 miles 13.6 3.3 15.8 3.2 16.7 1.5
50 to 99 miles 10.1 1.9 42.9 2.9 37.7 2.6
100 to 249 miles 10.1 1.3 12.9 0.7 11.0 1.3
250 to 499 miles 9.9 1.2 26.2 2.3 25.5 4.1
500 to 749 miles 10.2 1.2 20.4 1.5 20.8 4.3
750 to 999 miles 10.4 0.5 28.3 0.4 27.5 1.4
1,000 to 1,499 miles 15.6 0.4 24.0 0.2 23.3 1.2
1,500 to 1,999 miles 12.3 0.5 27.9 0.4 28.0 3.0
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 26.3 37.4 37.5
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles 41.9 10.3 45.0 9.9 49.1 10.3
250 to 499 miles 42.7 8.7 48.9 8.2 S S
500 to 749 miles 38.2 4.7 41.6 5.8 41.3 7.4
750 to 999 miles 32.4 11.2 36.9 8.3 37.5 12.3
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 43.7 1.2 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 29.3 S S 48.4
Less than 50 miles
50 to 99 miles 40.7 1.1 29.2 1.0 29.2 0.5
100 to 249 miles 45.3 7.5 34.4 8.9 34.0 6.8
250 to 499 miles S S S S S S
500 to 749 miles 34.2 8.1 32.5 7.3 31.7 6.5
750 to 999 miles 41.5 7.3 41.8 5.6 38.5 5.0
1,000 to 1,499 miles 39.0 4.0 S S S S
1,500 to 1,999 miles 38.5 3.9 44.1 5.5 45.0 8.4
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 12.3 30.2 36.7
Less than 50 miles 35.7 3.2 S S S S
50 to 99 miles 24.4 1.4 42.9 2.4 47.2 0.8
100 to 249 miles 26.0 3.2 29.8 3.8 33.5 2.3
250 to 499 miles 16.5 1.1 27.2 2.7 28.1 2.4
500 to 749 miles 13.4 3.8 41.4 8.5 41.3 6.3
750 to 999 miles 22.5 2.3 49.3 3.2 S S
1,000 to 1,499 miles 20.1 1.3 30.8 1.7 30.8 2.7
1,500 to 1,999 miles 24.4 2.6 49.4 6.1 49.4 8.5
2,000 miles or more 40.3 0.1 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 17.5 32.3 38.6
Less than 50 miles 36.1 3.5 22.7 3.9 19.4 0.2
50 to 99 miles 24.4 1.6 45.7 2.1 S S
100 to 249 miles 26.0 3.3 29.8 3.1 33.5 2.3
250 to 499 miles 14.0 1.6 28.5 2.1 29.8 1.7
500 to 749 miles 24.9 1.6 42.1 3.1 42.1 2.5
750 to 999 miles 30.7 3.1 44.0 3.0 44.1 3.6
1,000 to 1,499 miles 24.6 1.5 46.4 1.2 46.7 2.1
1,500 to 1,999 miles 32.1 2.5 22.0 1.3 21.6 3.2
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 30.7 37.1 41.1
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles
250 to 499 miles S S 44.9 1.4 47.0 0.4
500 to 749 miles 39.4 8.2 45.7 10.2 45.5 7.3
750 to 999 miles S S S S S S
1,000 to 1,499 miles 48.3 1.9 S S S S
1,500 to 1,999 miles 38.2 6.1 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 30.1 28.0 41.4
Less than 50 miles 44.2 9.9 40.9 8.7 47.1 1.3
50 to 99 miles S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles 36.4 5.7 S S S S
500 to 749 miles S S S S S S
750 to 999 miles 45.7 2.9 38.9 4.6 39.1 7.3
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.