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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 4.9 – 11.9 – 8.6 – 15.3
Less than 50 lbs 13.8 1.4 10.4 – 21.4 0.1 14.8
50 to 99 lbs 13.0 0.4 14.9 – 20.3 – 28.1
100 to 499 lbs 8.2 0.6 8.0 – 8.1 – 13.5
500 to 749 lbs 9.6 0.1 8.2 – 10.7 – 13.6
750 to 999 lbs 20.6 0.4 16.2 – 12.8 – 15.0
1,000 to 9,999 lbs 6.3 1.0 13.2 0.6 19.7 1.6 9.6
10,000 to 49,999 lbs 8.6 1.9 18.2 3.3 8.3 2.4 16.3
50,000 to 99,999 lbs 9.4 0.5 10.0 1.8 9.9 1.0 19.7
100,000 lbs or more 18.9 0.9 13.6 3.6 15.4 4.0 8.1

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 5.6 – 12.1 – 8.8 – 18.6
Less than 50 lbs 39.7 1.4 18.1 – 13.2 – 33.3
50 to 99 lbs 9.5 0.1 23.0 – 21.3 – 31.7
100 to 499 lbs 8.4 0.5 9.7 – 8.9 – 17.2
500 to 749 lbs 10.7 0.2 8.3 – 11.5 – 15.0
750 to 999 lbs 20.3 0.3 17.0 – 12.5 – 15.3
1,000 to 9,999 lbs 7.7 1.3 13.5 0.6 22.1 1.7 10.0
10,000 to 49,999 lbs 8.8 2.4 18.5 3.7 8.5 2.9 16.8
50,000 to 99,999 lbs 9.6 0.7 10.0 1.9 10.6 1.0 20.7
100,000 lbs or more 21.2 1.1 15.5 3.9 16.1 3.9 8.5

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 5.8 – 14.3 – 7.7 – 19.0
Less than 50 lbs 44.7 1.4 18.3 – 12.3 – 29.6
50 to 99 lbs 7.8 0.1 23.2 – 22.9 – 29.6
100 to 499 lbs 9.2 0.6 9.7 – 9.5 – 18.2
500 to 749 lbs 10.7 0.2 8.3 – 11.7 – 15.3
750 to 999 lbs 20.5 0.4 17.0 – 12.7 – 15.5
1,000 to 9,999 lbs 7.9 1.6 13.6 1.0 22.4 2.6 10.2
10,000 to 49,999 lbs 9.0 2.4 18.5 2.7 8.8 3.3 17.0
50,000 to 99,999 lbs 12.5 0.7 10.0 2.2 12.1 1.5 22.2
100,000 lbs or more 23.7 0.2 24.6 1.7 30.7 2.3 48.6

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 7.8 – 15.2 – 7.7 – 6.9
Less than 50 lbs 24.7 0.2 21.4 – 21.2 – 8.8
50 to 99 lbs 19.9 – 21.5 – 31.2 – 12.2
100 to 499 lbs 16.8 0.8 12.4 – 12.9 0.1 4.2
500 to 749 lbs 18.1 0.3 12.8 – 15.7 – 9.6
750 to 999 lbs 29.6 0.5 16.9 – 16.7 – 10.9
1,000 to 9,999 lbs 10.5 2.3 13.8 1.0 26.1 3.4 8.8
10,000 to 49,999 lbs 8.8 2.3 18.9 3.2 9.1 4.4 15.4
50,000 to 99,999 lbs 19.7 1.0 17.3 3.0 20.9 2.0 16.1
100,000 lbs or more 30.5 0.3 22.0 1.3 35.7 3.1 27.9

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 10.1 – 16.8 – 16.6 – 19.7
Less than 50 lbs S S 20.8 – 16.8 – 25.8
50 to 99 lbs 9.2 0.3 25.8 – 23.1 – 43.8
100 to 499 lbs 12.5 1.0 15.2 0.2 14.0 0.4 29.3
500 to 749 lbs 19.1 0.4 14.0 – 16.8 0.1 12.0
750 to 999 lbs 26.0 0.4 19.6 0.1 15.3 0.1 22.9
1,000 to 9,999 lbs 6.6 3.3 17.2 1.9 11.7 2.1 22.1
10,000 to 49,999 lbs 18.1 4.9 20.6 3.5 18.6 3.1 17.2
50,000 to 99,999 lbs 23.2 1.3 21.6 3.2 23.7 2.3 26.6
100,000 lbs or more 47.4 0.3 31.6 2.7 35.2 1.6 19.9

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 10.6 – 17.0 – 17.8 – 6.9
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 30.4
500 to 749 lbs S S S S S S 29.9
750 to 999 lbs S S S S S S 30.3
1,000 to 9,999 lbs S S 43.7 – 45.6 0.2 19.2
10,000 to 49,999 lbs 26.5 2.5 27.0 0.5 28.4 0.7 18.7
50,000 to 99,999 lbs S S 42.2 1.2 35.2 1.6 S
100,000 lbs or more 13.1 8.5 18.2 1.6 19.3 2.1 8.3

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 49.5 – 38.7 – 17.0 – S
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 S S S S S S S
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more 49.8 0.5 39.4 1.6 16.7 0.3 39.1

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 42.7 – 17.0 – S
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 S S S S S S S
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S 43.5 1.6 16.7 0.3 40.5

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 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

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 – – – – – – –
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 – – – – – – –

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 S S S S S S 8.6
Less than 50 lbs S S 28.6 9.2 27.2 9.8 6.3
50 to 99 lbs S S 35.9 2.5 30.5 3.4 12.7
100 to 499 lbs S S 23.5 12.8 34.4 14.1 22.6
500 to 749 lbs S S S S S S 29.9
750 to 999 lbs S S S S S S 31.2
1,000 to 9,999 lbs 41.2 6.3 49.6 5.9 45.9 3.5 S
10,000 to 49,999 lbs S S S S S S 29.9
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 S 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 13.2 – 37.7 – 38.4 – 9.3
Less than 50 lbs 17.9 4.7 18.3 3.5 23.9 2.8 9.3
50 to 99 lbs 22.6 2.9 21.6 2.1 28.9 1.0 12.5
100 to 499 lbs 25.2 3.4 23.4 3.5 20.0 2.8 10.1
500 to 749 lbs 45.1 0.3 29.8 0.5 S S 19.2
750 to 999 lbs S S 32.6 0.5 S S 21.5
1,000 to 9,999 lbs S S S S S S 31.8
10,000 to 49,999 lbs 23.4 2.1 24.6 7.5 28.0 9.4 7.0
50,000 to 99,999 lbs S S S S S S 28.0
100,000 lbs or more S S S S S S 20.3

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 10.3 – 13.1 – 16.9 – 9.4
Less than 50 lbs 17.9 7.2 18.3 5.7 23.9 6.4 9.3
50 to 99 lbs 22.6 3.1 21.7 2.9 28.9 2.5 12.5
100 to 499 lbs 25.3 3.6 23.6 3.9 20.8 5.3 10.2
500 to 749 lbs 45.6 0.4 30.5 1.0 S S 19.5
750 to 999 lbs S S 34.1 0.8 S S 22.5
1,000 to 9,999 lbs – – – – – – –
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 34.6 – 39.9 – 26.6 – 11.6
Less than 50 lbs – – – – – – –
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 31.6
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 25.1
10,000 to 49,999 lbs 23.6 16.6 24.9 15.7 28.0 12.1 7.2
50,000 to 99,999 lbs S S S S S S 28.0
100,000 lbs or more S S S S S S 27.9

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 40.6 – S S S S 22.7
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 27.9
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 31.2
10,000 to 49,999 lbs S S S S S S 29.8
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 31.6

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 44.3 – 43.2 – 45.2 – 23.7
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 – – – – – – –
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 47.6 4.8 43.5 0.9 45.5 0.9 23.7

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 28.4
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 S S S S S S 28.4

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 31.3 – 21.5 – 25.2 – 24.9
Less than 50 lbs 49.6 6.4 35.5 – 36.4 – 25.1
50 to 99 lbs 45.1 0.6 26.6 – 41.5 – 49.4
100 to 499 lbs 27.2 1.6 20.4 0.1 20.9 0.3 34.7
500 to 749 lbs S S 39.9 – S S 41.9
750 to 999 lbs 48.3 – S S S S 26.4
1,000 to 9,999 lbs 44.1 10.7 45.4 5.3 33.1 3.4 29.3
10,000 to 49,999 lbs 34.4 7.8 36.0 8.8 32.4 10.4 32.5
50,000 to 99,999 lbs S S 44.0 1.6 S S 26.7
100,000 lbs or more 24.0 4.5 23.9 9.8 44.5 12.9 36.9

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.