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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 5.2 – 9.1 – 14.0 – 9.5
Less than 50 lbs 15.3 1.4 17.5 – 20.4 0.2 9.1
50 to 99 lbs 15.2 0.4 16.1 – 22.7 – 10.8
100 to 499 lbs 10.9 0.9 10.4 0.1 13.4 0.1 9.1
500 to 749 lbs 11.0 0.3 12.1 – 19.2 0.1 12.8
750 to 999 lbs 14.0 0.2 15.9 – 12.8 – 15.0
1,000 to 9,999 lbs 18.4 2.8 9.0 0.7 13.7 1.3 9.4
10,000 to 49,999 lbs 4.5 1.8 14.3 6.1 9.0 5.1 12.9
50,000 to 99,999 lbs 24.7 0.6 34.6 2.4 32.4 1.7 12.0
100,000 lbs or more 24.2 0.7 29.3 6.5 29.4 6.3 13.1

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 3.9 – 9.1 – 15.1 – 8.0
Less than 50 lbs 14.0 0.5 22.3 – 14.4 – 18.0
50 to 99 lbs 14.9 0.2 18.5 – 18.0 – 14.2
100 to 499 lbs 11.9 0.9 11.3 0.1 12.4 0.1 8.8
500 to 749 lbs 11.9 0.3 13.0 – 20.0 0.1 12.0
750 to 999 lbs 13.2 0.2 15.7 – 12.2 – 14.9
1,000 to 9,999 lbs 10.0 1.6 7.8 0.7 6.7 1.3 10.3
10,000 to 49,999 lbs 4.7 1.6 14.3 6.0 9.6 5.2 12.0
50,000 to 99,999 lbs 26.7 0.7 35.0 2.7 35.9 1.8 12.4
100,000 lbs or more 24.8 0.9 29.1 6.3 29.8 6.4 13.5

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 4.2 – 11.3 – 7.8 – 8.3
Less than 50 lbs 16.0 0.5 22.8 – 17.7 – 14.8
50 to 99 lbs 14.4 0.2 18.6 – 18.3 – 14.3
100 to 499 lbs 11.8 0.9 11.2 0.2 12.2 0.3 9.5
500 to 749 lbs 11.3 0.3 12.9 0.1 19.0 0.3 11.7
750 to 999 lbs 13.5 0.3 15.8 – 12.3 0.1 14.9
1,000 to 9,999 lbs 10.1 1.7 7.8 1.0 6.9 1.4 10.4
10,000 to 49,999 lbs 5.0 1.5 14.3 5.3 9.8 2.9 11.8
50,000 to 99,999 lbs 28.4 0.7 35.6 2.8 38.3 2.8 11.6
100,000 lbs or more 25.1 0.3 S S 32.0 0.9 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 6.7 – 17.8 – 7.9 – 7.7
Less than 50 lbs 21.4 0.1 16.8 – 16.7 – 8.3
50 to 99 lbs 17.1 – 13.4 – 14.5 – 5.7
100 to 499 lbs 14.3 0.9 10.8 0.1 11.4 0.2 4.9
500 to 749 lbs 15.8 0.5 11.7 0.1 19.2 0.3 8.9
750 to 999 lbs 9.1 0.2 10.4 – 15.9 0.2 13.2
1,000 to 9,999 lbs 15.2 2.0 12.2 1.1 8.6 1.4 11.3
10,000 to 49,999 lbs 6.1 1.7 20.8 4.1 10.3 2.3 13.0
50,000 to 99,999 lbs 27.6 0.7 42.7 3.2 27.3 1.8 45.6
100,000 lbs or more 25.4 0.2 35.3 1.1 41.7 1.1 27.6

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 4.8 – 14.1 – 19.7 – 10.5
Less than 50 lbs 20.9 1.1 25.9 – 33.9 – 16.0
50 to 99 lbs 17.6 0.4 21.3 – 34.3 – 13.6
100 to 499 lbs 16.5 1.3 14.5 0.3 25.6 0.6 13.0
500 to 749 lbs 13.9 0.4 16.6 0.2 21.4 0.4 17.4
750 to 999 lbs 28.6 0.5 21.3 0.1 13.4 0.2 20.2
1,000 to 9,999 lbs 6.6 2.1 9.9 2.6 12.4 2.3 14.9
10,000 to 49,999 lbs 6.6 2.6 18.2 6.0 20.6 4.7 12.5
50,000 to 99,999 lbs 37.5 1.1 34.8 3.2 S S 20.6
100,000 lbs or more 44.5 0.7 S S 25.2 1.3 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 26.5 – 25.0 – 15.5 – 7.7
Less than 50 lbs S S S S S S 33.9
50 to 99 lbs S S S S S S 28.0
100 to 499 lbs S S S S S S 27.9
500 to 749 lbs S S S S S S 29.8
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S 42.7 – 37.9 – 19.9
10,000 to 49,999 lbs 39.6 5.0 30.0 0.3 30.0 0.5 16.9
50,000 to 99,999 lbs 43.1 3.2 44.4 0.4 40.2 0.3 23.2
100,000 lbs or more 28.5 5.7 25.4 0.6 15.7 0.6 9.9

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 33.3
Less than 50 lbs – – – – – – –
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 – – – – – – –
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 29.2

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 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 – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 29.8

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 S S S S S S 31.6
Less than 50 lbs – – – – – – –
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 – – – – – – –
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 38.6
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 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 32.3

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 15.7 – 41.6 – 37.8 – 9.0
Less than 50 lbs 22.2 6.5 34.9 1.3 34.3 1.5 10.2
50 to 99 lbs 40.4 2.8 25.1 1.6 26.3 1.7 9.9
100 to 499 lbs 22.4 4.7 28.3 5.5 27.9 6.2 6.2
500 to 749 lbs 39.5 2.3 29.1 1.6 31.8 1.6 12.5
750 to 999 lbs 46.7 1.6 36.9 1.9 S S 24.2
1,000 to 9,999 lbs 34.9 7.2 22.8 8.8 32.5 7.3 17.2
10,000 to 49,999 lbs S S S S S S 32.7
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 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
50,000 to 99,999 lbs – – – – S S S
100,000 lbs or more – – – – 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 18.6 – 13.9 – 16.9 – 4.2
Less than 50 lbs 18.2 6.9 19.5 4.6 21.5 5.1 4.5
50 to 99 lbs 26.9 1.4 26.4 2.0 29.9 1.7 7.3
100 to 499 lbs 24.4 2.5 22.4 4.1 28.1 3.6 9.0
500 to 749 lbs S S 33.8 0.6 44.7 0.7 18.8
750 to 999 lbs 48.0 0.1 42.5 0.3 44.2 0.2 20.9
1,000 to 9,999 lbs S S S S S S 35.4
10,000 to 49,999 lbs 24.4 3.8 29.1 9.7 27.3 9.2 9.5
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 30.5

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 18.3 – 16.8 – 20.0 – 4.4
Less than 50 lbs 18.2 4.1 19.5 4.8 21.5 5.7 4.5
50 to 99 lbs 26.9 1.5 26.4 1.6 29.9 2.0 7.3
100 to 499 lbs 24.7 2.5 22.8 3.7 29.4 4.1 9.5
500 to 749 lbs S S 34.1 0.7 45.6 0.9 18.7
750 to 999 lbs 49.6 0.1 43.8 0.7 47.1 0.4 18.2
1,000 to 9,999 lbs S S S S S S 29.8
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 24.2 – 25.5 – 6.7
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
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 15.6
10,000 to 49,999 lbs S S 29.4 10.9 27.5 10.7 8.9
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 30.6

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 46.9 – S S S S 26.5
Less than 50 lbs S S S S S S 31.9
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 32.4
500 to 749 lbs S S S S S S S
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 30.3
10,000 to 49,999 lbs S S S S S S S
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 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 S S S S S S 31.6
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 29.8
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 – – – – – – –
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

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 23.4 – 36.9 – 30.2 – S
Less than 50 lbs 38.5 2.8 34.2 0.4 S S S
50 to 99 lbs 35.7 0.5 34.3 0.2 S S S
100 to 499 lbs 47.8 2.5 34.0 1.4 S S S
500 to 749 lbs 46.3 1.8 42.7 0.7 47.9 – S
750 to 999 lbs 44.6 0.2 S S 36.7 – S
1,000 to 9,999 lbs 41.1 6.0 26.2 9.8 34.6 7.2 21.7
10,000 to 49,999 lbs 32.9 7.7 S S 31.8 8.9 S
50,000 to 99,999 lbs S S 39.0 2.5 S S 34.8
100,000 lbs or more S S 40.9 11.2 S S 30.2

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.