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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 State 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 State 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 6.1 – 21.7 – 8.0 – 11.9
Less than 50 lbs 8.9 1.6 14.0 – 15.1 – 11.6
50 to 99 lbs 14.5 0.6 17.0 – 13.2 – 8.2
100 to 499 lbs 11.5 1.2 17.5 – 7.0 – 14.6
500 to 749 lbs 18.1 0.8 14.7 – 12.7 – 13.6
750 to 999 lbs 16.1 0.3 16.0 – 14.2 – 14.9
1,000 to 9,999 lbs 7.5 1.6 15.2 0.4 16.4 0.3 13.8
10,000 to 49,999 lbs 15.1 3.1 47.7 6.4 18.3 2.1 32.2
50,000 to 99,999 lbs 19.6 0.9 17.1 1.9 13.2 0.3 12.2
100,000 lbs or more 16.1 1.0 7.5 4.9 8.6 2.1 12.8

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 7.8 – 24.6 – 9.1 – 26.8
Less than 50 lbs 24.0 1.4 31.1 – 28.5 – 42.2
50 to 99 lbs 14.8 0.4 19.3 – 23.5 – 17.1
100 to 499 lbs 14.5 1.2 19.9 – 4.4 – 18.4
500 to 749 lbs 19.2 1.0 14.1 – 13.9 – 15.1
750 to 999 lbs 17.2 0.4 15.6 – 16.5 – 12.5
1,000 to 9,999 lbs 7.4 2.0 15.3 0.5 15.4 0.3 13.6
10,000 to 49,999 lbs 15.5 3.7 48.4 6.8 18.6 2.4 33.0
50,000 to 99,999 lbs 20.1 1.1 17.4 2.7 14.6 0.5 12.1
100,000 lbs or more 16.0 1.1 8.3 4.8 9.3 2.2 12.7

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 8.9 – 35.7 – 22.1 – 31.8
Less than 50 lbs 23.2 1.2 33.4 – 38.4 0.1 S
50 to 99 lbs 16.1 0.4 19.3 – 24.3 – 19.1
100 to 499 lbs 17.7 1.3 20.2 0.2 5.4 0.2 18.9
500 to 749 lbs 14.3 0.7 14.2 0.1 14.2 0.2 15.2
750 to 999 lbs 19.1 0.4 15.7 0.1 17.2 0.1 11.9
1,000 to 9,999 lbs 7.6 2.0 15.3 1.5 15.5 2.1 13.8
10,000 to 49,999 lbs 15.5 4.0 48.3 6.8 17.4 4.7 34.6
50,000 to 99,999 lbs 20.4 1.2 17.7 5.6 15.8 2.0 11.1
100,000 lbs or more 25.9 0.2 35.0 2.2 S S S

For-hire 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 8.8 – 22.8 – 27.5 – 11.0
Less than 50 lbs 21.7 0.5 28.2 – 39.0 0.1 14.3
50 to 99 lbs 22.4 0.6 26.7 – 26.3 – 13.9
100 to 499 lbs 8.2 1.2 10.7 0.2 5.4 0.3 12.5
500 to 749 lbs 19.3 1.0 14.5 0.1 15.7 0.2 13.2
750 to 999 lbs 12.7 0.4 14.0 – 20.7 0.2 8.7
1,000 to 9,999 lbs 8.2 2.3 12.3 1.1 16.2 1.9 11.9
10,000 to 49,999 lbs 17.0 4.6 23.4 5.1 18.1 5.1 8.2
50,000 to 99,999 lbs 13.6 0.7 32.6 5.5 21.3 2.2 23.8
100,000 lbs or more 32.9 0.2 S S S S 33.5

Private 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 17.4 – S S 37.4 – S
Less than 50 lbs 33.0 3.0 42.5 0.3 46.5 0.3 S
50 to 99 lbs 21.6 0.4 24.9 – 26.1 – 30.0
100 to 499 lbs 35.8 1.7 26.5 0.3 16.2 0.4 32.1
500 to 749 lbs 27.3 0.4 15.7 0.2 19.0 0.2 20.7
750 to 999 lbs 32.6 0.8 18.1 0.2 14.6 0.1 20.9
1,000 to 9,999 lbs 11.4 2.6 20.8 2.4 17.6 3.8 19.6
10,000 to 49,999 lbs 23.4 3.8 S S S S 27.9
50,000 to 99,999 lbs 34.7 2.1 19.9 5.6 24.7 2.0 13.5
100,000 lbs or more 38.2 0.4 S S 41.9 4.3 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 20.4 – 9.4 – 19.6 – 8.4
Less than 50 lbs S S S S S S S
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 S S 42.2 – S S 28.6
10,000 to 49,999 lbs 35.3 2.4 S S S S 16.0
50,000 to 99,999 lbs 42.3 0.6 48.4 0.2 40.1 0.3 32.0
100,000 lbs or more 22.4 2.6 9.6 0.7 20.0 1.5 6.6

Water

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 19.6 – 16.8 – 18.9 – 25.1
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 31.6
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more 19.5 0.2 16.8 0.2 18.9 – 8.8

Shallow draft

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 20.4 – 18.4 – 20.3 – 26.5
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 31.6
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more 20.3 0.2 18.4 0.2 20.3 – 9.2

Great Lakes

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 31.0 – 30.9 – 31.1 – 21.1
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more 31.0 – 30.9 – 31.1 – 21.1

Deep draft

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 S S S S S S 31.6
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 31.6

Air (including truck and air)

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 22.2 – 16.4 – 15.4 – 3.6
Less than 50 lbs 32.3 5.9 35.6 6.1 38.7 6.6 3.8
50 to 99 lbs 24.0 3.7 38.0 2.0 42.0 2.7 9.9
100 to 499 lbs 27.9 4.6 20.2 4.3 18.2 5.7 10.7
500 to 749 lbs S S 39.4 2.9 45.6 3.0 23.5
750 to 999 lbs S S 32.1 1.8 34.7 1.8 18.7
1,000 to 9,999 lbs 43.9 5.9 35.1 5.8 45.2 5.1 16.1
10,000 to 49,999 lbs S S S S S S 29.2
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 31.6

Pipeline

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 S S S S S S S
Less than 50 lbs S S S S S S S
50 to 99 lbs – – – – S S S
100 to 499 lbs – – – – S S S
500 to 749 lbs – – – – S S S
750 to 999 lbs – – – – S S S
1,000 to 9,999 lbs – – – – S S S
10,000 to 49,999 lbs – – – – S S S
50,000 to 99,999 lbs – – – – S S S
100,000 lbs or more S S S S S S S

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 8.1 – 14.7 – 16.5 – 5.6
Less than 50 lbs 9.0 3.6 14.9 0.9 15.1 1.0 5.6
50 to 99 lbs 23.8 3.2 20.1 0.1 15.8 – 9.3
100 to 499 lbs 17.9 2.0 26.3 0.3 22.5 0.1 11.4
500 to 749 lbs 30.5 0.3 S S S S 20.4
750 to 999 lbs 29.9 0.1 S S 49.9 0.1 38.8
1,000 to 9,999 lbs S S S S S S 28.4
10,000 to 49,999 lbs S S S S S S 29.8
50,000 to 99,999 lbs S S S S S S 29.9
100,000 lbs or more 25.8 1.1 15.3 1.6 17.3 1.5 7.5

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 9.0 – 18.9 – 14.3 – 5.6
Less than 50 lbs 9.0 3.8 14.9 3.8 15.2 3.4 5.6
50 to 99 lbs 23.8 3.4 20.1 2.2 15.8 2.1 9.3
100 to 499 lbs 17.9 2.1 26.3 2.3 22.8 2.9 11.5
500 to 749 lbs 30.5 0.3 S S S S 20.4
750 to 999 lbs 29.9 0.1 S S 49.9 1.3 38.8
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 – – – – – – –

Truck and 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 S S S S S S 24.7
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 25.9
10,000 to 49,999 lbs S S S S S S 27.1
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more S S S S S S 31.6

Truck and water

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 S S 49.3 – 45.3 – 21.6
Less than 50 lbs S S S S S S 31.6
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 28.9
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 28.5
10,000 to 49,999 lbs S S S S S S 31.3
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more S S S S S S 24.0

Rail and water

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 17.7 – 15.6 – 17.7 – 4.4
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more 17.7 – 15.6 – 17.7 – 4.4

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 S S S S S S 29.8
Less than 50 lbs S S S S S S 31.6
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
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 31.6
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

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 – 25.1 – 32.7 – 38.3
Less than 50 lbs 23.7 4.4 29.7 0.3 25.4 0.1 S
50 to 99 lbs 29.7 1.8 32.8 0.2 26.7 0.1 44.7
100 to 499 lbs 36.9 3.2 31.6 1.4 37.8 0.8 26.0
500 to 749 lbs 35.0 0.5 30.3 0.4 S S 44.0
750 to 999 lbs 44.9 0.5 46.3 0.2 42.1 0.2 S
1,000 to 9,999 lbs 32.2 5.9 39.4 6.5 S S 22.8
10,000 to 49,999 lbs S S 49.3 7.5 S S 32.6
50,000 to 99,999 lbs S S 47.5 3.8 S S 29.6
100,000 lbs or more 37.0 2.8 35.9 12.0 48.4 14.0 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, Individual State Data, December 2004.