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Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002

Monday, July 2, 2012

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 8.7 – 14.3 – 8.9 –
Less than 50 miles 13.4 2.2 26.2 6.0 27.8 0.7
50 to 99 miles 9.8 0.9 36.8 2.7 34.5 1.6
100 to 249 miles 7.8 1.2 20.1 3.2 20.6 3.0
250 to 499 miles 14.6 1.6 12.8 4.2 13.6 4.1
500 to 749 miles 11.7 1.6 22.4 2.0 26.7 3.7
750 to 999 miles 12.2 0.4 15.0 0.8 16.7 1.8
1,000 to 1,499 miles 18.5 0.8 16.2 0.4 16.0 1.5
1,500 to 1,999 miles 25.4 0.4 35.2 0.2 35.9 1.2
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 8.7 – 15.1 – 5.7 –
Less than 50 miles 15.0 2.5 27.1 6.1 28.3 0.7
50 to 99 miles 9.8 0.9 37.3 2.7 35.0 1.6
100 to 249 miles 9.2 1.3 18.8 2.8 17.1 2.8
250 to 499 miles 15.1 1.9 12.8 4.4 13.6 4.1
500 to 749 miles 14.1 1.8 17.5 1.9 19.2 3.4
750 to 999 miles 10.2 0.4 14.6 0.8 16.3 1.8
1,000 to 1,499 miles 17.2 0.6 18.3 0.5 17.8 1.4
1,500 to 1,999 miles 26.0 0.4 36.9 0.2 37.7 1.1
2,000 miles or more S S 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 9.0 – 23.1 – 17.7 –
Less than 50 miles 15.2 2.7 27.4 7.0 28.9 1.4
50 to 99 miles 9.7 0.9 37.7 2.6 35.7 2.3
100 to 249 miles 9.6 1.2 27.7 2.7 22.8 2.1
250 to 499 miles 15.5 1.9 21.9 3.7 21.9 4.1
500 to 749 miles 15.0 1.8 26.0 1.9 26.4 2.4
750 to 999 miles 10.3 0.3 20.1 0.7 20.5 0.9
1,000 to 1,499 miles 19.8 0.8 24.6 0.8 24.1 1.8
1,500 to 1,999 miles 27.3 0.4 44.5 0.2 45.6 1.0
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 26.9 – 25.7 – 23.0 –
Less than 50 miles S S S S 38.3 –
50 to 99 miles S S 49.6 4.3 S S
100 to 249 miles 39.9 5.6 45.3 6.3 S S
250 to 499 miles 45.7 4.4 34.1 6.0 31.7 5.1
500 to 749 miles 47.5 3.2 34.7 4.0 31.6 5.8
750 to 999 miles 33.6 5.3 32.9 2.9 33.9 4.3
1,000 to 1,499 miles 39.9 3.5 49.5 0.7 46.2 1.4
1,500 to 1,999 miles S S 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 48.2 – 31.5 – 35.1 –
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles 37.7 10.8 28.0 11.2 28.0 11.9
250 to 499 miles S S 41.4 8.0 44.1 10.0
500 to 749 miles 34.8 8.5 S S S S
750 to 999 miles S S S S 45.5 9.2
1,000 to 1,499 miles S S 44.4 5.1 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 16.7 – S S S S
Less than 50 miles 34.1 0.5 49.1 0.1 36.1 –
50 to 99 miles 29.2 2.1 S S S S
100 to 249 miles 23.7 4.3 S S S S
250 to 499 miles 23.9 2.1 S S S S
500 to 749 miles 23.3 2.2 S S S S
750 to 999 miles 17.6 1.8 39.7 6.7 40.0 6.4
1,000 to 1,499 miles 29.1 2.8 38.4 8.2 42.8 9.4
1,500 to 1,999 miles 30.0 2.0 33.5 9.6 33.4 12.2
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 17.7 – 45.0 – S S
Less than 50 miles 34.1 0.5 49.1 0.9 36.1 –
50 to 99 miles 29.9 2.3 41.7 1.5 43.9 0.2
100 to 249 miles 25.0 4.5 23.0 3.1 20.8 1.0
250 to 499 miles 23.9 2.3 S S S S
500 to 749 miles 23.6 2.3 41.4 2.8 43.2 2.6
750 to 999 miles 19.3 2.3 49.5 1.8 49.6 2.6
1,000 to 1,499 miles 33.7 2.9 42.5 3.0 43.2 3.5
1,500 to 1,999 miles 29.6 1.1 S S S S
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 23.0 – 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 – – – – – –
500 to 749 miles S S S S S S
750 to 999 miles 46.4 10.1 S S S S
1,000 to 1,499 miles 39.1 11.7 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

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 25.0 – S S 26.4 –
Less than 50 miles S S S S S S
50 to 99 miles 44.8 1.0 45.2 7.8 49.1 3.5
100 to 249 miles 33.1 9.0 39.3 8.7 37.3 6.9
250 to 499 miles 28.7 3.3 S S S S
500 to 749 miles 49.1 4.1 44.5 4.8 43.1 2.7
750 to 999 miles S S S S S S
1,000 to 1,499 miles 33.0 2.9 50.0 4.9 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.