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 15.9 29.4 15.4
Less than 50 miles 31.4 3.5 40.7 8.2 S S
50 to 99 miles 26.9 1.3 23.5 2.8 24.2 1.1
100 to 249 miles 19.5 2.9 24.0 4.9 24.0 3.4
250 to 499 miles 24.2 4.6 14.1 1.7 14.6 2.1
500 to 749 miles 12.8 1.1 17.8 0.8 18.0 1.3
750 to 999 miles 16.7 0.6 26.3 0.5 25.5 1.7
1,000 to 1,499 miles 21.4 0.7 17.5 0.3 17.6 1.4
1,500 to 1,999 miles 15.2 0.6 36.3 0.1 36.3 1.4
2,000 miles or more 13.8 0.7 16.9 0.3 16.9 2.8

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 17.2 29.6 15.7
Less than 50 miles 33.0 3.7 40.9 8.2 S S
50 to 99 miles 27.8 1.3 23.9 2.8 24.5 1.1
100 to 249 miles 20.0 3.4 24.0 5.0 24.1 3.6
250 to 499 miles 26.2 4.8 15.5 1.4 16.4 1.2
500 to 749 miles 13.7 1.7 18.3 0.8 18.3 1.3
750 to 999 miles 18.4 0.5 22.5 0.5 21.8 1.5
1,000 to 1,499 miles 25.6 0.7 17.9 0.3 18.1 1.4
1,500 to 1,999 miles 13.3 0.5 36.8 0.1 36.8 1.5
2,000 miles or more 13.1 0.6 18.1 0.3 18.1 3.0

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 17.4 29.6 16.1
Less than 50 miles 33.0 4.0 40.9 8.2 S S
50 to 99 miles 27.9 1.3 23.9 2.8 24.5 1.1
100 to 249 miles 21.3 3.6 24.2 5.1 24.3 3.7
250 to 499 miles 26.4 4.7 15.5 1.4 16.5 1.2
500 to 749 miles 14.6 1.7 18.4 0.8 18.4 1.4
750 to 999 miles 19.4 0.5 22.5 0.5 21.8 1.5
1,000 to 1,499 miles 26.0 0.7 19.1 0.3 19.4 1.2
1,500 to 1,999 miles 14.2 0.5 37.2 0.1 37.2 1.5
2,000 miles or more 14.1 0.3 17.8 0.3 17.8 2.8

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 48.1 39.9
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
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

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 49.1 45.5 47.4
Less than 50 miles
50 to 99 miles S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles 39.2 9.8 38.6 10.3 40.2 8.5
500 to 749 miles S S S S S S
750 to 999 miles S S 48.4 3.6 48.9 3.4
1,000 to 1,499 miles 45.8 1.6 S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more S S 31.9 3.7 32.4 8.1

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 31.8 27.1 26.7
Less than 50 miles 37.1 1.2 41.0 2.8 44.3 0.3
50 to 99 miles 25.9 1.0 30.6 2.4 32.2 0.7
100 to 249 miles 32.2 1.9 40.7 3.5 40.6 1.1
250 to 499 miles 44.3 3.7 45.3 13.4 46.5 13.1
500 to 749 miles 35.5 5.1 48.4 4.7 S S
750 to 999 miles 48.9 2.0 27.3 1.9 27.4 2.3
1,000 to 1,499 miles 49.8 2.6 31.8 0.9 32.3 1.5
1,500 to 1,999 miles S S 26.9 0.4 27.6 0.9
2,000 miles or more 44.2 1.7 48.9 5.1 48.4 8.4

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 34.4 22.6 22.7
Less than 50 miles 37.1 1.5 41.0 2.8 44.3 0.3
50 to 99 miles 25.9 1.2 30.6 2.9 32.2 0.8
100 to 249 miles 33.8 1.5 42.9 2.9 46.3 0.9
250 to 499 miles S S 25.3 2.7 23.7 2.2
500 to 749 miles 36.5 5.2 29.6 3.1 29.8 4.1
750 to 999 miles 48.9 2.1 27.3 3.3 27.4 3.8
1,000 to 1,499 miles 49.8 2.6 31.8 0.9 32.3 1.7
1,500 to 1,999 miles S S 26.9 2.0 27.6 3.9
2,000 miles or more 48.4 2.8 24.1 2.3 26.8 4.7

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 37.4 42.2 36.7
Less than 50 miles
50 to 99 miles
100 to 249 miles S S S S S S
250 to 499 miles 48.5 10.4 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
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 44.0 48.0 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 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.