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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 15.1 – 16.3 – 15.9 – 12.0
Less than 50 lbs 10.7 1.4 20.2 – 44.6 0.4 10.4
50 to 99 lbs 14.4 0.4 15.9 – 17.2 – 18.8
100 to 499 lbs 40.7 2.2 17.5 0.2 22.0 0.2 21.2
500 to 749 lbs 49.5 1.1 20.0 – 17.8 – 23.4
750 to 999 lbs 15.6 0.3 20.5 0.1 23.6 – 21.0
1,000 to 9,999 lbs 10.6 2.0 16.4 1.2 25.4 1.6 22.6
10,000 to 49,999 lbs 17.6 1.9 30.0 5.9 11.8 2.6 43.6
50,000 to 99,999 lbs 11.8 1.1 16.0 3.9 6.3 1.4 17.0
100,000 lbs or more 12.5 0.9 11.6 3.9 25.3 4.3 8.5

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 17.7 – 17.0 – 17.4 – 20.0
Less than 50 lbs 20.0 1.2 18.6 – 21.3 – 17.5
50 to 99 lbs 25.7 0.3 17.0 – 20.0 – 32.2
100 to 499 lbs 47.2 2.4 18.3 0.2 24.3 0.3 23.4
500 to 749 lbs S S 20.9 – 18.3 – 24.4
750 to 999 lbs 16.7 0.4 21.3 0.1 22.9 – 21.7
1,000 to 9,999 lbs 9.8 1.9 17.2 1.4 26.4 2.2 24.6
10,000 to 49,999 lbs 18.6 2.1 30.3 6.1 12.6 2.9 45.5
50,000 to 99,999 lbs 12.5 1.3 16.2 3.9 8.0 1.7 13.6
100,000 lbs or more 13.7 1.1 14.9 4.0 28.0 5.1 9.0

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 16.3 – 20.4 – 9.7 – 15.0
Less than 50 lbs 15.3 0.5 19.0 – 22.4 – 16.7
50 to 99 lbs 29.0 0.2 17.5 – 19.2 – 27.6
100 to 499 lbs 32.4 1.4 18.3 0.2 24.1 0.4 26.5
500 to 749 lbs S S 21.0 0.1 18.4 0.1 25.3
750 to 999 lbs 16.7 0.5 21.3 0.1 23.1 0.1 22.0
1,000 to 9,999 lbs 9.8 2.1 17.9 1.7 13.4 1.1 23.5
10,000 to 49,999 lbs 19.3 2.3 30.6 5.8 14.2 3.8 48.8
50,000 to 99,999 lbs 13.1 1.4 16.5 4.2 9.5 2.5 12.6
100,000 lbs or more 20.7 0.3 23.0 1.2 42.8 2.4 19.0

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 26.7 – 12.9 – 10.5 – 12.6
Less than 50 lbs 32.9 0.5 21.4 – 24.1 – 21.2
50 to 99 lbs S S 21.2 – 25.6 – 19.3
100 to 499 lbs 47.3 2.1 25.1 0.2 25.7 0.4 22.7
500 to 749 lbs S S 20.0 – 21.5 – 7.6
750 to 999 lbs 26.0 0.7 24.5 – 26.3 0.2 13.6
1,000 to 9,999 lbs 10.0 2.8 11.2 0.8 15.9 1.0 8.5
10,000 to 49,999 lbs 31.3 2.3 17.2 5.3 16.7 4.6 18.0
50,000 to 99,999 lbs 19.0 2.5 20.9 4.7 12.4 3.8 18.3
100,000 lbs or more 22.3 0.7 29.3 1.8 44.0 2.9 24.4

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 10.0 – 29.7 – 16.2 – 17.6
Less than 50 lbs 14.7 0.8 20.4 0.1 24.9 – 24.4
50 to 99 lbs 17.9 0.5 19.6 – 25.5 – 11.0
100 to 499 lbs 15.2 1.4 20.7 0.3 18.8 0.4 20.2
500 to 749 lbs 14.9 0.6 24.1 0.2 26.3 0.4 30.1
750 to 999 lbs 16.1 0.5 23.5 0.2 23.4 0.4 34.3
1,000 to 9,999 lbs 14.8 2.3 21.0 2.7 16.9 2.9 25.3
10,000 to 49,999 lbs 10.5 2.8 43.1 7.9 18.9 4.3 49.8
50,000 to 99,999 lbs 34.5 1.9 28.4 5.7 28.6 4.4 22.3
100,000 lbs or more 48.2 0.2 29.3 0.7 38.9 0.2 43.6

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 15.4 – 23.2 – 28.6 – 9.6
Less than 50 lbs S S S S S S 32.7
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs 36.2 – 46.8 – S S 29.5
10,000 to 49,999 lbs 29.1 2.9 22.8 1.3 26.8 1.7 11.9
50,000 to 99,999 lbs 19.6 1.1 22.4 0.5 19.5 1.1 19.0
100,000 lbs or more 16.7 3.8 24.2 1.7 30.3 2.7 8.0

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 38.9 – 32.2 – 47.0
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 29.8
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 31.6
100,000 lbs or more S S 39.1 10.5 35.6 10.0 32.0

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 39.1 – 35.6 – 33.0
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 S S S S S S 31.6
100,000 lbs or more S S 39.1 – 35.6 – 32.0

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 28.0
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 29.8
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 – – – – – – –

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 46.5 – S S S S 7.4
Less than 50 lbs 33.8 10.3 33.7 9.9 36.0 10.0 7.6
50 to 99 lbs S S 36.4 3.0 42.4 4.0 15.7
100 to 499 lbs S S 38.3 8.2 39.0 8.7 10.5
500 to 749 lbs 45.4 1.5 45.6 1.1 46.6 1.2 22.5
750 to 999 lbs S S S S S S 26.3
1,000 to 9,999 lbs 32.9 2.5 S S S S 17.4
10,000 to 49,999 lbs S S S S S S 26.8
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 38.1 – 44.0 – 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 9.3 – 21.0 – 25.0 – 8.4
Less than 50 lbs 10.3 2.2 35.8 3.0 S S 8.6
50 to 99 lbs 13.0 1.7 18.4 0.6 20.7 0.6 10.6
100 to 499 lbs 15.2 2.3 17.7 1.4 18.8 2.0 11.0
500 to 749 lbs 21.1 0.5 30.4 0.4 29.5 0.3 17.4
750 to 999 lbs S S S S S S 21.5
1,000 to 9,999 lbs 27.5 0.2 23.1 0.5 27.1 0.5 17.0
10,000 to 49,999 lbs 26.1 1.8 22.4 6.9 27.1 7.9 4.9
50,000 to 99,999 lbs S S 46.0 5.9 S S 27.1
100,000 lbs or more 48.6 0.9 40.6 10.1 49.2 9.9 19.9

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 9.2 – 20.2 – 32.0 – 8.4
Less than 50 lbs 10.4 2.2 35.9 6.1 S S 8.6
50 to 99 lbs 13.0 1.8 18.4 1.8 20.7 3.0 10.5
100 to 499 lbs 15.6 2.4 17.3 3.7 19.2 4.2 10.8
500 to 749 lbs 21.1 0.6 30.7 2.1 30.5 1.5 18.0
750 to 999 lbs S S S S S S 21.9
1,000 to 9,999 lbs S S S S S S 29.2
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 24.0 – 18.6 – 23.6 – 15.4
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 46.0 0.2 S S 24.9
10,000 to 49,999 lbs 33.8 7.9 30.2 8.9 38.6 9.4 13.3
50,000 to 99,999 lbs 34.7 1.5 44.2 2.7 46.4 0.8 22.9
100,000 lbs or more 32.3 7.9 32.2 9.0 38.5 9.3 18.1

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 36.5 – S S S S 3.6
Less than 50 lbs S S S S S S 29.8
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S 39.8 0.2 43.0 0.3 21.7
500 to 749 lbs S S S S S S 30.4
750 to 999 lbs S S S S S S 28.1
1,000 to 9,999 lbs 33.2 7.9 27.0 4.3 30.3 3.7 13.2
10,000 to 49,999 lbs 28.0 11.6 26.0 16.3 26.8 18.6 5.0
50,000 to 99,999 lbs S S S S S S 28.1
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 S S S S S S 29.8
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 S S S S S S 31.6
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 31.6

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 30.2
Less than 50 lbs S S S S S S 31.7
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 S S S S 38.7
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs S S S S S S 30.1
100,000 lbs or more S S S S S S 31.6

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 – 41.7 – 25.3 – S
Less than 50 lbs 33.2 3.4 31.1 0.4 34.8 – S
50 to 99 lbs 21.2 1.0 29.9 0.5 33.5 – S
100 to 499 lbs 33.4 3.2 32.8 1.9 49.1 0.5 S
500 to 749 lbs 44.9 1.3 30.9 0.8 S S S
750 to 999 lbs S S 45.3 1.0 S S 33.1
1,000 to 9,999 lbs S S 27.7 5.6 27.2 8.2 S
10,000 to 49,999 lbs 34.0 7.4 29.6 8.0 32.9 10.0 S
50,000 to 99,999 lbs S S S S 41.9 3.8 S
100,000 lbs or more 25.9 4.2 S S 45.4 5.5 37.1

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.