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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 13.6 – 8.2 – 12.8 – 7.4
Less than 50 lbs 17.2 2.7 14.9 – 7.0 0.2 7.3
50 to 99 lbs 10.9 0.5 16.1 – 22.3 0.1 19.7
100 to 499 lbs 12.5 1.4 19.4 0.3 11.9 0.5 20.2
500 to 749 lbs 13.0 0.5 16.5 0.1 17.7 0.2 39.3
750 to 999 lbs 40.4 1.3 31.5 0.2 12.1 0.1 26.0
1,000 to 9,999 lbs 12.8 1.9 12.5 1.2 9.8 1.4 17.3
10,000 to 49,999 lbs 31.4 3.9 5.9 3.5 10.4 3.7 10.4
50,000 to 99,999 lbs 19.9 0.4 17.4 3.0 34.3 1.8 31.9
100,000 lbs or more 15.3 1.0 17.5 3.4 25.2 5.0 S

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 16.9 – 8.9 – 9.4 – 14.5
Less than 50 lbs 13.7 0.6 33.1 – 10.6 – 24.4
50 to 99 lbs 16.2 0.4 29.2 – 18.5 – 43.4
100 to 499 lbs 14.0 1.6 22.4 0.3 14.9 0.4 28.2
500 to 749 lbs 14.1 0.6 17.0 0.1 18.8 0.2 40.4
750 to 999 lbs 42.1 1.6 33.3 0.2 12.4 – 28.2
1,000 to 9,999 lbs 12.9 2.5 13.9 1.3 12.7 1.4 18.3
10,000 to 49,999 lbs 32.4 4.3 6.1 3.6 10.4 2.6 11.5
50,000 to 99,999 lbs 21.3 0.5 17.7 3.0 17.2 1.5 12.6
100,000 lbs or more 15.5 1.2 18.2 3.5 19.1 4.6 S

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 17.6 – 7.4 – 10.5 – 15.0
Less than 50 lbs 17.4 0.7 34.2 – 14.8 – 17.8
50 to 99 lbs 17.6 0.4 29.5 – 20.8 – 48.4
100 to 499 lbs 14.3 1.7 22.5 0.4 15.4 0.5 28.5
500 to 749 lbs 14.6 0.7 17.0 0.2 18.9 0.3 40.5
750 to 999 lbs 42.3 1.7 33.4 0.2 10.3 0.1 26.2
1,000 to 9,999 lbs 13.0 2.6 13.9 1.5 12.7 1.6 18.4
10,000 to 49,999 lbs 32.4 4.4 6.1 3.7 10.5 2.5 11.6
50,000 to 99,999 lbs 21.4 0.5 17.7 4.1 18.1 1.5 13.5
100,000 lbs or more 28.2 0.6 22.8 2.2 40.4 3.9 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 24.6 – 15.9 – 12.4 – 11.3
Less than 50 lbs 19.4 0.5 14.0 – 16.1 – 26.8
50 to 99 lbs 18.5 0.3 10.2 – 25.5 – 17.3
100 to 499 lbs 14.1 1.7 18.7 0.2 17.0 0.4 14.1
500 to 749 lbs 26.0 0.9 19.1 0.1 24.3 0.2 26.1
750 to 999 lbs S S 24.9 0.2 6.4 0.1 21.3
1,000 to 9,999 lbs 16.4 3.1 10.4 1.4 13.3 1.6 13.9
10,000 to 49,999 lbs 41.6 5.3 11.9 5.0 11.6 2.5 8.9
50,000 to 99,999 lbs 28.9 1.2 29.4 5.1 27.0 1.7 21.1
100,000 lbs or more 31.4 0.5 31.2 2.8 44.2 2.8 S

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 6.7 – 15.4 – 27.9 – 25.3
Less than 50 lbs 25.1 1.3 41.9 0.1 26.6 – 31.7
50 to 99 lbs 25.3 1.0 37.6 0.1 26.6 – 24.6
100 to 499 lbs 15.5 2.1 28.5 0.7 35.1 1.8 39.2
500 to 749 lbs 21.0 1.0 24.9 0.3 41.1 1.2 S
750 to 999 lbs 17.5 0.6 45.9 0.4 29.4 0.3 47.6
1,000 to 9,999 lbs 11.2 2.6 22.5 2.3 18.9 3.2 13.8
10,000 to 49,999 lbs 13.7 3.2 10.4 4.5 18.9 7.1 14.6
50,000 to 99,999 lbs 45.8 2.5 34.1 5.9 26.1 4.2 22.0
100,000 lbs or more 34.7 1.2 39.3 4.3 S S 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 39.6 – 26.0 – 35.0 – 12.0
Less than 50 lbs S S S S S S 27.9
50 to 99 lbs S S S S S S 31.4
100 to 499 lbs S S S S S S 33.1
500 to 749 lbs S S S S S S 30.0
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs 44.3 0.8 42.4 – 36.0 0.1 33.0
10,000 to 49,999 lbs 47.6 10.3 49.2 2.8 49.6 4.1 35.5
50,000 to 99,999 lbs 47.2 1.6 35.8 1.1 42.3 2.6 30.0
100,000 lbs or more 48.2 10.6 27.5 2.9 37.2 5.3 14.3

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 29.2 – 30.3 – 38.1 – 19.5
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 S S S S S S 31.6
50,000 to 99,999 lbs S S S S S S 44.4
100,000 lbs or more 29.3 0.7 30.3 – 38.1 – 20.7

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 29.9 – 31.8 – 42.5 – 15.9
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 29.9 – 31.8 – 42.5 – 15.9

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 39.1 – 43.3 – 41.5 – 47.9
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 S S S S S S 44.4
100,000 lbs or more 45.3 13.6 43.3 13.3 41.7 14.8 23.7

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 16.5 – S S S S 8.4
Less than 50 lbs 29.9 9.3 21.5 9.5 18.5 9.4 8.5
50 to 99 lbs 23.1 3.8 31.7 5.1 41.8 7.3 10.1
100 to 499 lbs 30.4 8.7 29.1 9.1 32.6 9.1 13.4
500 to 749 lbs S S 22.7 1.4 41.3 1.1 26.2
750 to 999 lbs 49.6 0.3 S S S S 27.5
1,000 to 9,999 lbs 40.6 4.0 36.6 7.6 42.5 8.1 17.7
10,000 to 49,999 lbs S S S S S S 29.7
50,000 to 99,999 lbs S S S S S S 31.6
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 33.1 – 39.0 – S S S
Less than 50 lbs – – – – 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 33.1 0.4 39.0 0.4 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 16.1 – 35.2 – S S 5.4
Less than 50 lbs 20.2 3.5 9.7 5.9 7.5 8.2 5.3
50 to 99 lbs 17.5 1.3 17.5 2.8 24.7 3.3 8.5
100 to 499 lbs 23.7 3.0 24.9 4.2 16.6 4.4 9.6
500 to 749 lbs 28.0 0.3 30.3 0.9 19.7 0.7 41.1
750 to 999 lbs 34.3 0.3 40.3 1.3 32.6 0.4 S
1,000 to 9,999 lbs S S S S S S 30.0
10,000 to 49,999 lbs S S 45.5 5.9 S S 24.2
50,000 to 99,999 lbs S S S S S S 30.0
100,000 lbs or more S S S S S S 26.8

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 16.3 – 13.3 – 9.1 – 5.4
Less than 50 lbs 20.2 3.6 9.7 3.3 7.5 3.7 5.3
50 to 99 lbs 17.5 1.3 17.5 2.8 24.7 3.8 8.5
100 to 499 lbs 23.7 3.0 24.9 3.6 16.6 3.7 9.5
500 to 749 lbs 28.1 0.3 30.6 1.3 19.7 0.7 41.3
750 to 999 lbs 35.4 0.3 39.3 2.1 35.0 0.4 S
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 S S 48.0 – 47.9 – 20.3
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 34.1
10,000 to 49,999 lbs S S S S S S 21.8
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 30.3

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 45.2 – 41.5 – 33.7 – S
Less than 50 lbs S S S S S S 31.6
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 – – – – – – –
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 30.8
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 30.0
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 – – – – – – –
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 – – – – – – –

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 39.5
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs S S S S S S 31.6
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 29.9

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 21.9 – 38.4 – S S S
Less than 50 lbs 33.8 5.7 S S 48.3 0.1 S
50 to 99 lbs 48.8 2.4 S S 34.9 – S
100 to 499 lbs 46.4 3.5 S S 45.1 0.9 S
500 to 749 lbs S S S S S S S
750 to 999 lbs 44.0 0.6 S S S S S
1,000 to 9,999 lbs 24.9 6.6 49.6 5.2 S S 27.0
10,000 to 49,999 lbs 42.0 5.7 47.4 9.0 36.7 16.7 S
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

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.