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 15.5 20.4 20.4
Less than 50 miles 26.4 4.6 34.1 6.0 20.3 1.2
50 to 99 miles 16.8 1.6 25.3 1.3 23.2 0.9
100 to 249 miles 15.5 1.2 24.3 2.4 24.0 3.2
250 to 499 miles 14.7 2.8 6.5 2.2 6.7 3.2
500 to 749 miles 21.1 1.6 25.0 2.2 27.9 4.4
750 to 999 miles 22.3 0.6 24.1 0.3 24.4 0.5
1,000 to 1,499 miles 23.0 0.8 29.5 0.3 29.8 1.9
1,500 to 1,999 miles S S S S S S
2,000 miles or more 39.8 0.8 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 16.1 17.5 20.6
Less than 50 miles 27.7 4.7 29.1 5.7 20.7 1.1
50 to 99 miles 18.0 1.6 25.5 1.3 23.6 0.9
100 to 249 miles 16.6 1.2 24.7 2.3 24.5 3.2
250 to 499 miles 15.2 3.0 6.5 2.1 6.7 3.3
500 to 749 miles 21.2 1.6 24.8 2.2 27.8 4.5
750 to 999 miles 23.3 0.6 24.7 0.3 25.0 0.5
1,000 to 1,499 miles 25.0 1.0 30.0 0.3 30.3 1.9
1,500 to 1,999 miles S S S S S S
2,000 miles or more 44.2 0.8 S S 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 16.4 18.2 22.6
Less than 50 miles 27.7 4.7 29.2 5.6 20.6 1.0
50 to 99 miles 18.0 1.6 25.5 1.3 23.6 0.9
100 to 249 miles 16.7 1.2 24.4 2.4 23.4 3.1
250 to 499 miles 15.8 3.1 6.7 2.1 6.7 3.3
500 to 749 miles 21.5 1.1 20.5 1.2 19.9 2.0
750 to 999 miles 22.6 0.6 24.7 0.3 24.9 0.6
1,000 to 1,499 miles 19.7 0.7 24.5 0.2 24.7 1.6
1,500 to 1,999 miles S S S S S S
2,000 miles or more 44.6 0.8 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 49.8 S S S S
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 45.0 14.2 44.1 13.9 37.9 14.5
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
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 38.9 S S S S
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 S S S S S S
500 to 749 miles S S 38.3 17.0 37.5 16.6
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

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 26.2 33.2 38.5
Less than 50 miles 49.8 2.5 43.8 2.4 36.5 0.1
50 to 99 miles 42.9 3.4 48.4 3.8 48.3 1.6
100 to 249 miles 34.7 3.5 37.0 3.5 34.1 2.9
250 to 499 miles 30.9 3.1 44.5 2.6 45.9 1.6
500 to 749 miles 28.9 3.9 33.7 5.0 34.0 4.9
750 to 999 miles 25.7 1.0 37.7 1.0 38.0 1.7
1,000 to 1,499 miles 25.4 1.3 36.0 0.7 35.4 1.2
1,500 to 1,999 miles 33.8 0.9 48.7 0.7 49.3 1.6
2,000 miles or more 36.9 1.8 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 26.2 33.3 38.8
Less than 50 miles 49.8 2.5 43.8 2.4 36.5 0.1
50 to 99 miles 42.9 3.4 48.4 3.8 48.3 1.6
100 to 249 miles 34.7 3.5 37.0 3.5 34.1 2.9
250 to 499 miles 30.9 3.1 44.5 2.6 45.9 1.7
500 to 749 miles 28.9 4.0 33.7 5.1 34.0 5.2
750 to 999 miles 25.7 1.0 37.7 1.1 38.0 1.7
1,000 to 1,499 miles 25.4 1.3 36.0 0.7 35.4 1.2
1,500 to 1,999 miles 33.8 0.9 48.7 0.7 49.3 1.7
2,000 miles or more 37.1 1.8 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 48.8 S S S S
Less than 50 miles
50 to 99 miles
100 to 249 miles
250 to 499 miles S S S S S S
500 to 749 miles
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 35.6 S S S S
Less than 50 miles 41.1 10.5 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
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.