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 6.7 16.2 19.1
Less than 50 miles 7.1 2.8 17.1 2.9 16.1 1.2
50 to 99 miles 14.2 0.6 23.2 1.0 22.7 1.0
100 to 249 miles 19.8 1.0 25.5 2.6 24.7 3.7
250 to 499 miles 24.4 0.4 24.6 0.7 26.8 2.2
500 to 749 miles 12.2 0.4 S S S S
750 to 999 miles 17.4 1.0 30.3 0.2 30.6 1.4
1,000 to 1,499 miles 10.1 1.4 23.1 0.6 23.1 4.3
1,500 to 1,999 miles 17.3 0.2 S S S S
2,000 miles or more 18.5 1.0 26.6 0.2 26.6 2.5

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 8.8 17.0 20.1
Less than 50 miles 7.8 2.9 18.4 3.4 16.8 1.3
50 to 99 miles 13.8 0.6 23.6 0.9 24.0 0.8
100 to 249 miles 24.8 1.2 25.7 2.8 25.0 4.2
250 to 499 miles 27.4 0.5 24.9 0.7 27.1 2.5
500 to 749 miles 14.1 0.4 S S S S
750 to 999 miles 23.0 1.0 31.7 0.2 31.9 1.5
1,000 to 1,499 miles 14.7 1.5 25.2 0.6 25.3 4.6
1,500 to 1,999 miles 22.3 0.1 S S S S
2,000 miles or more 24.4 1.1 27.7 0.2 27.9 2.7

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 8.2 17.2 16.8
Less than 50 miles 7.8 2.8 18.4 2.9 16.8 1.2
50 to 99 miles 13.8 0.6 23.9 0.8 24.3 0.7
100 to 249 miles 13.2 0.7 28.7 2.9 28.1 4.3
250 to 499 miles 25.7 0.5 31.1 0.7 36.2 2.9
500 to 749 miles 10.9 0.3 21.9 0.6 20.7 2.7
750 to 999 miles 23.5 0.8 31.5 0.2 31.4 1.9
1,000 to 1,499 miles 17.5 1.4 24.4 0.5 23.1 4.0
1,500 to 1,999 miles 22.5 0.1 40.1 42.4 0.6
2,000 miles or more 27.2 1.2 30.3 0.2 30.6 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 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 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 30.6 S S 37.8
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 31.5 0.9 47.2 0.9 45.5 0.6
750 to 999 miles S S 45.7 7.8 43.9 6.6
1,000 to 1,499 miles 19.9 8.9 21.6 16.2 21.5 14.4
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 17.6 23.3 30.4
Less than 50 miles 14.3 3.2 27.3 3.2 34.9 0.1
50 to 99 miles 34.5 1.7 25.8 0.7 20.0
100 to 249 miles 26.5 1.1 31.0 1.7 29.4 0.5
250 to 499 miles 15.0 0.4 S S S S
500 to 749 miles 24.8 0.8 23.9 1.6 24.0 1.3
750 to 999 miles 14.7 1.5 15.8 1.4 15.9 1.8
1,000 to 1,499 miles 21.2 3.4 44.5 8.3 42.3 7.4
1,500 to 1,999 miles 37.1 0.6 30.0 0.7 31.6 1.4
2,000 miles or more 39.9 2.1 29.5 1.4 29.2 4.0

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 17.9 16.7 17.1
Less than 50 miles 14.7 3.3 28.8 2.5 35.0 0.1
50 to 99 miles 34.7 1.7 26.0 0.9 20.0 0.1
100 to 249 miles 26.5 1.2 31.0 1.6 29.4 0.6
250 to 499 miles 14.8 0.4 31.0 0.9 32.7 0.8
500 to 749 miles 24.8 0.8 23.9 1.3 24.0 1.0
750 to 999 miles 14.7 1.5 15.8 0.8 15.9 1.1
1,000 to 1,499 miles 21.4 3.2 15.7 2.0 15.6 1.9
1,500 to 1,999 miles 37.1 0.6 30.0 0.7 31.6 1.3
2,000 miles or more 41.0 2.2 32.8 2.9 32.6 4.3

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 35.3 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
250 to 499 miles S S S S S S
500 to 749 miles
750 to 999 miles
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

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 37.7 26.6 34.2
Less than 50 miles 34.9 8.6 27.8 9.5 30.3 5.5
50 to 99 miles 38.7 0.4 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 36.6 1.2 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 37.7 0.1 37.3 3.7

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.