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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 9.5 – 10.5 – 5.7 – 15.4
Less than 50 lbs 19.0 0.6 35.8 – 26.3 – 21.0
50 to 99 lbs 16.2 0.2 16.5 – 36.2 – 20.7
100 to 499 lbs 41.3 1.8 22.4 0.2 29.6 0.2 16.3
500 to 749 lbs 37.5 0.9 26.9 0.2 32.3 0.2 15.2
750 to 999 lbs 37.2 0.5 17.1 – 26.2 – 9.9
1,000 to 9,999 lbs 18.6 2.5 9.6 0.9 19.9 1.4 12.7
10,000 to 49,999 lbs 7.8 4.5 14.1 5.4 10.9 4.2 11.1
50,000 to 99,999 lbs 22.7 0.8 38.3 4.4 34.0 2.3 24.3
100,000 lbs or more 13.6 0.6 18.2 3.8 12.6 4.0 16.5

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 10.6 – 10.1 – 7.0 – 14.3
Less than 50 lbs 18.2 0.2 25.3 – 24.6 – 44.2
50 to 99 lbs 17.1 0.1 12.1 – 40.4 – 28.9
100 to 499 lbs 49.3 1.9 22.5 0.2 33.8 0.2 16.0
500 to 749 lbs 39.3 1.0 27.7 0.2 36.1 0.2 13.0
750 to 999 lbs 38.8 0.6 18.2 – 27.4 – 9.7
1,000 to 9,999 lbs 19.1 2.8 10.2 0.9 20.3 1.4 12.0
10,000 to 49,999 lbs 8.6 4.5 12.3 5.3 11.9 3.9 12.0
50,000 to 99,999 lbs 22.6 0.9 39.2 4.6 33.2 3.0 24.2
100,000 lbs or more 15.4 0.7 18.9 3.9 14.2 4.0 17.0

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 11.0 – 12.6 – 9.4 – 14.5
Less than 50 lbs 19.9 0.3 25.8 – 28.5 – 40.5
50 to 99 lbs 18.9 0.2 13.1 – 46.1 – 31.0
100 to 499 lbs 49.7 1.9 22.5 0.2 33.9 0.3 16.2
500 to 749 lbs 39.4 1.1 27.7 0.2 36.2 0.2 13.0
750 to 999 lbs 38.7 0.6 18.1 – 27.1 0.1 9.6
1,000 to 9,999 lbs 19.8 3.0 10.1 1.0 20.6 1.8 12.1
10,000 to 49,999 lbs 7.3 4.6 12.5 6.6 12.4 4.8 12.1
50,000 to 99,999 lbs 23.1 0.9 39.5 5.0 34.8 3.8 25.2
100,000 lbs or more 49.9 0.5 41.4 3.7 43.1 3.2 48.1

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 17.6 – 15.4 – 11.7 – 8.4
Less than 50 lbs 31.0 0.2 29.4 – 34.3 – 9.9
50 to 99 lbs 37.0 0.2 37.0 – S S 10.8
100 to 499 lbs S S 41.9 0.2 39.8 0.3 8.5
500 to 749 lbs 47.9 1.3 45.5 0.2 41.8 0.3 7.0
750 to 999 lbs 48.4 0.7 35.3 – 35.5 0.1 10.5
1,000 to 9,999 lbs 26.1 3.7 19.9 1.3 25.5 2.0 5.9
10,000 to 49,999 lbs 10.3 5.5 11.5 7.2 14.9 5.5 7.7
50,000 to 99,999 lbs 31.4 1.8 50.0 7.8 45.6 5.1 17.6
100,000 lbs or more S S S S S S 17.0

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 12.2 – 21.9 – 26.0 – 12.3
Less than 50 lbs 26.0 1.1 33.8 – 22.2 – 39.0
50 to 99 lbs 26.7 0.2 22.1 – 17.6 – 23.5
100 to 499 lbs 17.6 0.9 13.3 0.3 12.5 0.2 10.9
500 to 749 lbs 27.8 0.6 19.3 0.3 19.0 0.2 11.9
750 to 999 lbs 15.5 0.3 10.2 0.1 21.6 0.1 21.1
1,000 to 9,999 lbs 11.2 2.5 12.5 1.3 22.6 1.4 25.3
10,000 to 49,999 lbs 17.0 3.6 31.4 8.0 24.5 4.7 20.4
50,000 to 99,999 lbs 25.1 0.7 25.2 2.2 S S 35.1
100,000 lbs or more 36.9 0.3 49.1 8.1 47.3 5.0 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 13.5 – 15.6 – 14.0 – 12.8
Less than 50 lbs S S S S S S 31.4
50 to 99 lbs – – – – – – –
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 – – – – – – –
1,000 to 9,999 lbs S S S S S S 29.7
10,000 to 49,999 lbs S S 21.2 0.8 22.7 1.6 15.6
50,000 to 99,999 lbs 38.7 0.7 43.5 0.4 41.9 0.5 34.9
100,000 lbs or more 12.7 6.4 15.9 1.0 14.5 1.5 13.6

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 S S 38.2 – 34.3 – 20.4
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 – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 28.8
10,000 to 49,999 lbs S S S S S S 26.6
50,000 to 99,999 lbs S S S S S S 26.7
100,000 lbs or more S S 38.3 14.4 34.5 14.2 26.5

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 38.2 – 34.3 – 20.4
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 – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 28.8
10,000 to 49,999 lbs S S S S S S 26.6
50,000 to 99,999 lbs S S S S S S 26.7
100,000 lbs or more S S 38.3 14.4 34.5 14.2 26.5

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 – – – – – – –
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 – – – – – – –
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 37.2 – 32.0 – 5.3
Less than 50 lbs 31.2 12.5 37.3 4.0 36.2 5.0 6.5
50 to 99 lbs S S S S S S 12.1
100 to 499 lbs S S S S S S 21.8
500 to 749 lbs S S S S S S 33.0
750 to 999 lbs S S S S S S 29.8
1,000 to 9,999 lbs S S S S S S 24.8
10,000 to 49,999 lbs S S 42.5 17.2 41.3 17.4 24.9
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 S S S S 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
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 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 23.5 – 28.8 – 34.4 – 20.1
Less than 50 lbs 30.0 4.0 47.8 2.9 30.3 2.2 22.3
50 to 99 lbs 38.1 1.9 34.9 1.7 43.8 1.3 13.5
100 to 499 lbs 46.1 3.8 35.4 2.7 44.1 2.0 13.6
500 to 749 lbs S S S S S S 23.3
750 to 999 lbs S S S S S S 49.8
1,000 to 9,999 lbs S S S S S S 33.2
10,000 to 49,999 lbs 19.6 5.6 26.1 10.5 27.2 11.4 9.4
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more 45.7 2.9 S S S S 20.9

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 32.8 – 33.5 – 32.5 – 20.2
Less than 50 lbs 30.1 5.3 47.8 7.7 30.3 6.8 22.2
50 to 99 lbs 38.1 2.5 34.9 3.1 43.8 2.7 13.5
100 to 499 lbs 46.2 4.7 35.8 5.6 44.6 5.0 13.4
500 to 749 lbs S S S S S S 23.3
750 to 999 lbs S S S S S S 22.3
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 21.7 – 26.1 – 25.7 – 10.1
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 21.2
10,000 to 49,999 lbs 19.5 8.0 27.4 11.6 27.9 9.4 8.1
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more S S S S 45.0 9.3 21.6

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 S S S S 24.6
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 30.1
500 to 749 lbs – – – – – – –
750 to 999 lbs S S S S S S 29.8
1,000 to 9,999 lbs S S S S S S 39.8
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 S S S S S S 29.9

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 S
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 31.6
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 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 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 33.4 – S S S S 38.4
Less than 50 lbs 45.7 7.0 49.4 2.6 S S 23.9
50 to 99 lbs 41.4 1.5 39.4 1.0 S S S
100 to 499 lbs 39.4 3.4 S S 34.3 1.8 S
500 to 749 lbs 49.5 0.3 S S 37.7 – S
750 to 999 lbs 48.5 0.5 38.9 0.6 S S S
1,000 to 9,999 lbs 37.2 5.5 S S 29.1 3.7 S
10,000 to 49,999 lbs 49.5 10.1 S S S S 37.2
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more S S 47.4 2.8 47.5 6.3 33.0

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.