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 9.9 20.2 15.9
Less than 50 miles 13.3 4.0 19.0 5.7 25.6 2.8
50 to 99 miles S S S S S S
100 to 249 miles 21.0 2.6 31.0 2.7 29.8 2.1
250 to 499 miles 8.5 1.3 24.9 2.2 32.9 5.2
500 to 749 miles 14.4 2.0 27.6 3.4 29.5 7.6
750 to 999 miles 13.9 0.5 17.3 0.2 18.0 1.3
1,000 to 1,499 miles 19.5 0.2 28.4 29.5 0.3
1,500 to 1,999 miles 24.5 0.4 41.1 0.1 41.7 1.4
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 10.2 20.2 16.1
Less than 50 miles 13.5 4.1 19.0 5.7 25.6 2.8
50 to 99 miles S S S S S S
100 to 249 miles 21.4 2.7 31.1 2.7 29.9 2.2
250 to 499 miles 8.9 1.4 25.1 2.2 33.1 5.3
500 to 749 miles 14.8 2.0 27.7 3.4 29.5 7.5
750 to 999 miles 12.8 0.5 17.7 0.2 18.4 1.1
1,000 to 1,499 miles 28.1 0.2 30.1 31.3 0.3
1,500 to 1,999 miles 26.7 0.3 41.6 0.1 42.2 1.3
2,000 miles or more

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 14.2 44.5 22.6
Less than 50 miles 14.6 4.8 39.0 5.3 36.4 1.7
50 to 99 miles S S S S S S
100 to 249 miles 13.5 2.1 17.7 3.1 16.4 2.7
250 to 499 miles 11.0 2.1 18.4 3.2 18.4 3.2
500 to 749 miles 13.6 0.8 18.5 1.0 18.4 2.2
750 to 999 miles 15.6 0.5 21.5 0.6 20.5 1.3
1,000 to 1,499 miles 28.8 0.2 35.0 0.1 36.1 0.6
1,500 to 1,999 miles 30.6 0.4 S S S S
2,000 miles or more

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 18.4 30.0 22.8
Less than 50 miles S S 44.4 14.3 45.5 5.5
50 to 99 miles 44.3 1.2 41.8 5.8 41.9 2.2
100 to 249 miles 35.2 3.4 30.4 3.3 27.4 3.2
250 to 499 miles 32.4 8.4 29.8 8.2 27.6 6.8
500 to 749 miles 22.6 4.7 33.3 1.8 33.3 3.7
750 to 999 miles 27.7 2.3 32.2 1.5 32.6 3.0
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 39.0 1.2 45.4 0.2 44.8 2.2
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 35.5 29.9 28.9
Less than 50 miles 47.1 13.9 48.0 13.1 47.6 3.6
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 38.1 17.8 37.8 16.2 38.1 10.4
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
2,000 miles or more

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 21.4 26.5 31.5
Less than 50 miles 31.5 2.6 S S 37.0 0.3
50 to 99 miles 40.0 0.8 S S S S
100 to 249 miles 35.9 3.3 S S S S
250 to 499 miles 35.5 4.9 32.9 3.0 31.8 2.2
500 to 749 miles 25.3 2.1 44.8 6.9 47.1 7.8
750 to 999 miles 28.7 3.4 35.4 6.9 35.4 7.6
1,000 to 1,499 miles 30.8 2.7 S S S S
1,500 to 1,999 miles 21.4 3.7 40.8 3.6 40.1 6.7
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 27.6 35.2 40.7
Less than 50 miles 36.6 3.6 35.1 4.4 39.2 0.4
50 to 99 miles 40.0 1.4 S S S S
100 to 249 miles 35.5 3.4 27.3 2.2 29.3 1.2
250 to 499 miles 37.2 4.8 36.5 4.6 38.2 3.0
500 to 749 miles 29.3 1.8 44.7 1.7 44.3 2.1
750 to 999 miles 33.1 4.4 49.2 3.3 S S
1,000 to 1,499 miles 43.0 1.4 43.9 1.4 43.1 2.3
1,500 to 1,999 miles 35.7 1.5 30.0 0.7 29.5 2.3
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 36.6 33.5 36.1
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles S S S S S S
250 to 499 miles 49.3 2.5 48.9 2.8 49.5 1.0
500 to 749 miles S S S S S S
750 to 999 miles 38.2 9.3 40.4 8.9 40.1 9.4
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 39.9 5.4 41.9 3.4 41.2 6.6
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 19.1 19.6 36.0
Less than 50 miles 35.6 14.6 32.9 15.1 26.9 15.6
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 47.2 10.8 48.7 11.8
500 to 749 miles 40.5 7.5 S S S S
750 to 999 miles S S 46.8 4.7 47.2 9.2
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.