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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 5.7 – 6.4 – 11.7 – 8.3
Less than 50 lbs 13.0 0.9 15.1 – 22.4 – 7.4
50 to 99 lbs 18.1 0.5 6.6 – 7.8 – 10.6
100 to 499 lbs 7.0 0.6 10.1 0.1 9.1 0.1 11.8
500 to 749 lbs 9.0 0.3 12.3 – 11.9 – 11.7
750 to 999 lbs 16.2 0.3 13.0 – 10.3 – 13.6
1,000 to 9,999 lbs 5.0 1.4 9.7 1.1 8.7 1.0 5.7
10,000 to 49,999 lbs 8.5 1.4 9.2 2.8 5.6 4.2 8.7
50,000 to 99,999 lbs 19.2 0.5 24.8 1.6 17.3 0.7 14.7
100,000 lbs or more 15.6 0.6 10.0 2.7 21.6 5.2 15.8

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 5.9 – 6.8 – 13.2 – 7.7
Less than 50 lbs 18.3 0.6 13.6 – 11.1 – 14.7
50 to 99 lbs 22.4 0.4 8.8 – 12.2 – 11.5
100 to 499 lbs 6.3 0.5 10.9 0.2 11.2 0.2 13.1
500 to 749 lbs 8.3 0.2 13.6 – 14.7 0.1 11.5
750 to 999 lbs 16.3 0.3 14.4 – 10.4 – 9.0
1,000 to 9,999 lbs 5.0 1.3 9.3 1.1 9.2 1.3 6.1
10,000 to 49,999 lbs 8.9 1.5 9.2 2.9 6.0 4.8 8.9
50,000 to 99,999 lbs 19.4 0.6 25.0 1.6 17.4 0.8 15.0
100,000 lbs or more 15.8 0.7 11.0 2.9 25.6 6.1 16.0

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 5.7 – 7.8 – 11.6 – 8.0
Less than 50 lbs 19.5 0.6 13.8 – 14.1 – 15.7
50 to 99 lbs 24.4 0.4 8.8 – 13.9 – 12.8
100 to 499 lbs 6.6 0.5 11.0 0.2 11.7 0.2 13.5
500 to 749 lbs 8.4 0.3 13.6 0.1 15.1 0.1 11.7
750 to 999 lbs 9.5 0.3 14.3 0.1 10.8 0.1 9.1
1,000 to 9,999 lbs 5.1 1.3 9.3 1.4 9.3 1.4 6.1
10,000 to 49,999 lbs 8.9 1.7 9.2 2.9 6.1 5.0 8.9
50,000 to 99,999 lbs 19.4 0.7 25.1 2.0 17.8 1.3 15.2
100,000 lbs or more 28.6 0.4 29.0 2.3 S S 25.8

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 7.3 – 12.3 – 14.6 – 9.2
Less than 50 lbs 36.1 0.5 21.1 – 20.5 – 11.2
50 to 99 lbs S S 29.3 – 23.7 – 16.6
100 to 499 lbs 11.0 0.5 27.3 0.2 13.6 0.3 12.0
500 to 749 lbs 11.5 0.3 32.9 0.2 17.1 0.2 20.8
750 to 999 lbs 12.1 0.3 25.1 0.1 11.0 0.1 18.8
1,000 to 9,999 lbs 8.8 1.7 17.4 1.6 7.9 1.6 12.2
10,000 to 49,999 lbs 11.0 2.7 14.6 3.2 7.8 5.6 8.9
50,000 to 99,999 lbs 14.7 0.6 22.3 1.2 20.2 1.1 18.7
100,000 lbs or more 41.5 0.5 42.2 2.6 S S 23.0

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 5.7 – 9.3 – 9.0 – 8.0
Less than 50 lbs 21.4 1.0 14.8 – 12.8 – 11.7
50 to 99 lbs 22.2 0.6 10.1 – 9.1 – 6.0
100 to 499 lbs 8.0 1.1 13.6 0.3 12.0 0.1 9.8
500 to 749 lbs 9.3 0.3 15.7 0.2 18.0 0.2 14.2
750 to 999 lbs 9.0 0.4 18.4 0.2 19.4 0.1 14.9
1,000 to 9,999 lbs 5.7 1.7 13.6 2.1 18.0 2.4 10.2
10,000 to 49,999 lbs 7.0 1.7 10.3 4.2 12.8 3.8 12.9
50,000 to 99,999 lbs 33.0 1.3 28.9 3.3 26.8 4.1 10.9
100,000 lbs or more 42.1 0.6 43.5 3.1 27.9 1.6 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 8.6 – 20.9 – 29.3 – 12.6
Less than 50 lbs S S S S S S 28.0
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S S
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs 47.5 – S S S S 26.8
10,000 to 49,999 lbs 27.3 1.8 26.2 0.5 23.7 0.6 13.9
50,000 to 99,999 lbs 36.0 1.7 S S 31.3 0.7 31.9
100,000 lbs or more 10.3 3.0 21.1 0.6 29.7 1.0 13.0

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 48.0 – S S 33.7
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 31.6
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S 48.0 0.1 S S 28.8

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 S S 48.0 – S S 28.8
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 48.0 – S S 28.8

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 – – – – – – –
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 – – – – – – –

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 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 – – – – – – –

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 40.7 – 27.5 – 22.9 – 3.9
Less than 50 lbs 20.5 6.4 16.1 4.8 24.9 4.2 3.9
50 to 99 lbs 32.9 5.4 30.0 2.0 33.1 3.1 18.4
100 to 499 lbs 28.9 4.4 27.8 3.3 25.4 2.8 10.1
500 to 749 lbs S S 43.6 4.3 44.0 4.4 18.7
750 to 999 lbs S S S S S S S
1,000 to 9,999 lbs 42.2 8.1 31.4 7.9 34.4 9.0 16.7
10,000 to 49,999 lbs S S S S S S 35.2
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

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 32.5 – 32.1 – 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 S S S S
10,000 to 49,999 lbs S S S S S S S
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more 32.5 10.5 32.1 10.5 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 13.1 – 34.1 – 34.9 – 6.3
Less than 50 lbs 15.5 3.8 22.7 5.4 23.9 4.9 6.6
50 to 99 lbs 17.0 2.2 14.3 2.5 13.5 1.8 9.6
100 to 499 lbs 21.5 2.2 12.0 4.0 14.5 3.6 12.2
500 to 749 lbs S S 35.4 0.9 39.3 0.7 18.1
750 to 999 lbs 48.0 0.5 48.6 2.2 S S 15.0
1,000 to 9,999 lbs S S 45.4 0.4 S S 46.0
10,000 to 49,999 lbs 15.4 0.1 19.9 5.3 16.6 8.3 11.9
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more 44.1 0.3 40.1 18.0 42.5 18.0 19.2

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 13.3 – 16.1 – 17.9 – 6.3
Less than 50 lbs 15.5 3.9 22.7 2.9 23.9 4.1 6.6
50 to 99 lbs 17.0 2.2 14.3 2.3 13.5 2.6 9.6
100 to 499 lbs 21.5 2.2 12.0 3.1 14.0 3.5 11.9
500 to 749 lbs S S 35.4 1.1 39.3 1.0 18.1
750 to 999 lbs 48.9 0.5 48.8 2.5 S S 17.9
1,000 to 9,999 lbs S S S S S S 42.4
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 23.6 – 11.8 – 18.5 – 13.5
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.5
500 to 749 lbs – – – – – – –
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 29.0
10,000 to 49,999 lbs 17.9 9.6 12.1 6.4 20.0 5.6 13.4
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 28.9

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 S S S S 16.9
Less than 50 lbs S S S S S S 29.8
50 to 99 lbs S S S S S S 29.8
100 to 499 lbs S S S S S S 28.2
500 to 749 lbs – – – – – – –
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 28.1
10,000 to 49,999 lbs S S S S S S 37.6
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

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 41.3 – 40.1 – 42.4 – 20.5
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 41.3 – 40.1 – 42.4 – 20.5

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 31.6
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 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 – – – – – – –

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 19.8 – 23.8 – 16.0 – 36.7
Less than 50 lbs 38.4 2.6 34.5 0.1 16.5 – S
50 to 99 lbs 38.9 0.9 24.7 0.2 39.7 – 30.8
100 to 499 lbs 42.7 2.8 23.9 0.5 39.6 – S
500 to 749 lbs S S 26.0 0.3 42.2 – 37.9
750 to 999 lbs S S S S 45.4 – S
1,000 to 9,999 lbs 40.8 7.3 24.3 7.0 29.7 7.6 27.9
10,000 to 49,999 lbs 19.2 6.5 26.3 8.8 27.9 8.7 36.0
50,000 to 99,999 lbs 29.1 0.2 31.9 1.4 48.9 0.4 42.8
100,000 lbs or more S 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, Individual State Data, December 2004.