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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Table B-4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size for CBSA of Origin: 2002

Monday, July 2, 2012

Table B-4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size 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

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 9.6 – 14.8 – 21.2 – 7.4
Less than 50 lbs 21.3 3.6 25.7 – 31.4 0.1 7.9
50 to 99 lbs 21.3 0.6 20.6 – 27.2 – 20.2
100 to 499 lbs 11.1 1.1 26.1 0.1 23.7 0.2 32.9
500 to 749 lbs 20.1 0.9 26.6 – 21.3 – S
750 to 999 lbs 22.7 0.6 30.5 – 46.0 – 43.2
1,000 to 9,999 lbs 14.1 2.4 25.3 0.7 14.5 0.5 23.7
10,000 to 49,999 lbs 21.3 6.9 37.5 6.2 48.7 4.5 19.3
50,000 to 99,999 lbs 21.6 1.3 33.1 7.2 S S 18.6
100,000 lbs or more 15.9 0.7 10.3 6.4 22.3 8.3 16.5

Single modes

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 11.8 – 14.2 – 17.6 – 33.6
Less than 50 lbs 28.9 1.9 47.7 – 27.4 – S
50 to 99 lbs 28.4 0.7 29.4 – 35.8 – 43.5
100 to 499 lbs 12.9 1.5 29.6 0.1 24.9 0.1 38.9
500 to 749 lbs 22.3 1.1 26.3 – 17.9 – S
750 to 999 lbs 23.8 0.8 32.2 – 27.9 – 42.6
1,000 to 9,999 lbs 13.0 3.1 25.8 0.8 16.2 0.5 23.5
10,000 to 49,999 lbs 21.6 7.2 37.2 6.7 48.7 6.0 17.4
50,000 to 99,999 lbs 20.6 1.8 33.3 7.1 S S 18.0
100,000 lbs or more 15.8 0.7 9.1 6.6 18.7 8.5 16.8

Truck

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 12.7 – 19.6 – 32.2 – 31.8
Less than 50 lbs 36.3 2.2 48.7 – 35.9 – S
50 to 99 lbs 32.2 0.7 30.0 – 38.6 – 46.4
100 to 499 lbs 15.3 1.5 30.1 0.2 26.5 0.2 38.8
500 to 749 lbs 23.5 1.1 26.6 – 20.7 – S
750 to 999 lbs 27.0 0.9 32.0 – 29.9 – 45.1
1,000 to 9,999 lbs 14.0 3.3 25.9 1.5 16.9 1.2 23.4
10,000 to 49,999 lbs 21.6 7.6 37.1 7.3 48.6 9.1 17.4
50,000 to 99,999 lbs 21.0 1.7 33.7 6.8 S S 18.9
100,000 lbs or more 24.5 0.5 17.2 4.9 40.7 4.8 S

Rail

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 20.1 – 18.3 – 20.3 – 13.0
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs S S S S S S 32.7
50,000 to 99,999 lbs S S S S S S 29.2
100,000 lbs or more 20.6 4.8 18.4 0.6 20.2 0.5 14.2

All other Single modes

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 22.7 – S S S S 2.8
Less than 50 lbs 29.9 7.1 33.2 3.9 34.4 4.7 4.1
50 to 99 lbs 25.9 1.9 29.8 2.5 32.4 2.8 11.1
100 to 499 lbs 31.1 5.8 38.9 10.8 36.8 11.1 5.9
500 to 749 lbs 40.5 5.5 34.7 12.8 43.5 13.0 16.8
750 to 999 lbs S S S S S S 27.4
1,000 to 9,999 lbs 48.3 4.9 S S S S 26.4
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more – – – – – – –

Multiple modes

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 18.9 – 37.2 – 40.1 – 4.1
Less than 50 lbs 24.3 6.5 32.1 10.9 33.1 10.4 4.0
50 to 99 lbs 31.0 2.5 33.0 3.5 36.4 2.5 9.2
100 to 499 lbs 21.2 3.4 31.0 7.1 34.5 7.0 10.0
500 to 749 lbs 34.4 1.0 S S S S 27.1
750 to 999 lbs S S S S S S 24.4
1,000 to 9,999 lbs S S S S S S 31.1
10,000 to 49,999 lbs S S S S S S 27.2
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more 36.1 1.9 S S S S 18.9

Parcel, USPS or courier

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 20.0 – 22.9 – 26.1 – 4.1
Less than 50 lbs 24.3 6.1 32.1 6.5 33.1 7.5 4.0
50 to 99 lbs 31.0 2.5 33.0 5.1 36.4 4.8 9.2
100 to 499 lbs 21.2 3.7 31.0 5.2 34.6 5.4 9.8
500 to 749 lbs 33.8 0.9 S S S S 24.9
750 to 999 lbs S S S S S S 26.0
1,000 to 9,999 lbs S S S S S S 31.6
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

All other multiple modes

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 48.9 – 38.3 – 41.0 – 30.0
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 29.8
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 31.6
10,000 to 49,999 lbs S S S S S S 27.2
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more 36.1 12.8 39.1 13.3 41.3 13.4 18.9

Other and unknown modes

Shipment Weight Value Tons Ton-miles CV of average miles per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All shipment sizes 29.2 – S S S S S
Less than 50 lbs S S S S S S S
50 to 99 lbs S S 42.4 0.7 S S S
100 to 499 lbs 38.4 4.2 47.4 2.5 S S S
500 to 749 lbs S S 48.3 1.6 48.0 1.0 S
750 to 999 lbs S S S S S S 45.9
1,000 to 9,999 lbs S S 29.5 13.2 38.7 16.3 39.2
10,000 to 49,999 lbs 28.2 11.3 S S S S 49.5
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more S S S S S S 31.3

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.