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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 13.3 – 10.4 – 16.3 – 14.8
Less than 50 lbs 29.7 1.5 31.7 – S S 17.0
50 to 99 lbs 39.1 0.8 37.7 – S S 18.3
100 to 499 lbs 36.6 2.6 31.1 0.3 S S 17.9
500 to 749 lbs 37.4 1.0 25.4 – 20.2 – 19.1
750 to 999 lbs 46.8 0.6 34.6 – 24.2 – 18.1
1,000 to 9,999 lbs 17.6 1.7 15.7 1.3 13.5 1.6 19.1
10,000 to 49,999 lbs 11.2 4.7 8.2 4.2 14.3 2.6 12.2
50,000 to 99,999 lbs 20.7 1.0 17.3 3.7 S S 47.8
100,000 lbs or more 19.6 2.0 22.6 4.6 22.0 5.8 6.7

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 13.9 – 10.7 – 16.5 – 17.1
Less than 50 lbs 39.3 1.4 37.2 – S S 21.2
50 to 99 lbs 48.7 0.8 39.8 – S S 19.6
100 to 499 lbs 38.0 2.8 31.4 0.3 S S 18.8
500 to 749 lbs 38.9 1.1 26.9 – 21.2 – 22.2
750 to 999 lbs 47.7 0.6 35.5 – 24.9 – 18.8
1,000 to 9,999 lbs 19.2 2.1 16.9 1.4 14.6 1.6 19.8
10,000 to 49,999 lbs 11.4 4.8 8.4 4.3 14.6 2.5 12.6
50,000 to 99,999 lbs 21.4 1.1 17.7 3.8 S S 47.4
100,000 lbs or more 20.5 2.2 23.7 4.9 23.1 6.1 6.7

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 14.6 – 7.8 – 25.3 – 18.4
Less than 50 lbs 41.4 1.5 38.1 – S S 25.3
50 to 99 lbs 49.6 0.8 40.2 – S S 19.9
100 to 499 lbs 38.1 2.9 31.5 0.4 S S 19.0
500 to 749 lbs 39.1 1.2 27.0 0.1 21.5 0.1 22.2
750 to 999 lbs 47.7 0.6 35.8 0.1 25.3 0.2 18.7
1,000 to 9,999 lbs 19.2 2.1 17.0 1.6 14.6 2.4 19.9
10,000 to 49,999 lbs 11.4 5.4 8.5 4.1 14.6 5.2 12.6
50,000 to 99,999 lbs 21.7 1.1 17.9 4.4 S S 47.4
100,000 lbs or more 14.4 0.3 27.0 1.4 26.4 0.8 35.3

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 20.1 – 9.1 – 28.4 – 10.5
Less than 50 lbs S S S S S S 11.2
50 to 99 lbs S S S S S S 11.5
100 to 499 lbs 44.2 4.2 46.6 0.8 S S 11.0
500 to 749 lbs 45.3 1.8 43.7 0.2 23.4 0.1 22.9
750 to 999 lbs S S S S 27.9 0.2 28.0
1,000 to 9,999 lbs 23.6 2.9 20.0 1.3 19.1 2.7 11.1
10,000 to 49,999 lbs 15.8 7.0 7.3 5.4 15.4 6.7 11.8
50,000 to 99,999 lbs 30.7 1.4 24.5 6.2 S S 31.6
100,000 lbs or more 37.9 0.4 24.5 0.5 31.2 1.2 28.9

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 9.2 – 9.6 – 15.8 – 27.3
Less than 50 lbs 31.4 1.5 30.0 – 27.2 – 28.9
50 to 99 lbs 26.3 0.5 26.5 – 19.3 – 29.0
100 to 499 lbs 21.3 1.2 35.0 0.3 33.8 0.3 S
500 to 749 lbs 33.7 0.8 25.6 0.2 17.3 0.1 42.6
750 to 999 lbs 23.3 0.4 22.9 0.1 21.5 0.1 37.9
1,000 to 9,999 lbs 15.2 3.2 25.2 3.2 21.3 3.7 18.6
10,000 to 49,999 lbs 16.2 5.3 14.4 5.4 24.2 5.7 17.6
50,000 to 99,999 lbs 17.4 1.2 23.4 5.1 37.5 5.6 24.1
100,000 lbs or more 24.9 0.6 34.6 3.5 46.0 0.9 31.6

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 13.1 – 19.0 – 18.2 – 5.7
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 29.1
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 30.5
10,000 to 49,999 lbs 36.9 1.3 40.3 0.2 40.8 0.3 22.8
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more 13.2 1.5 18.6 0.3 18.1 0.5 4.2

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 37.9 – 42.6 – 47.5 – 26.1
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 29.8
750 to 999 lbs S S S S S S 31.6
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 31.6
50,000 to 99,999 lbs 43.1 0.8 44.6 0.8 44.1 0.8 23.7
100,000 lbs or more 38.2 1.0 42.9 1.0 47.7 1.0 29.4

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 32.9 – 38.6 – 37.4 – 30.2
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 29.8
750 to 999 lbs S S S S S S 31.6
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 31.6
50,000 to 99,999 lbs 47.2 0.8 47.1 0.8 47.1 0.8 25.8
100,000 lbs or more 33.2 0.9 38.9 0.9 37.3 1.0 35.0

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 26.2
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 S S S S 26.3

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 S S S S 49.5 – 12.6
Less than 50 lbs S S S S S S 13.9
50 to 99 lbs S S S S S S 24.5
100 to 499 lbs S S S S S S 18.5
500 to 749 lbs S S 48.9 8.4 S S 26.8
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs 46.4 10.4 S S S S 26.3
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 – – – – – – –

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 37.6 – 36.9 – 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 39.7 6.4 37.2 1.6 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 20.9 – 23.0 – 20.3 – 8.3
Less than 50 lbs 33.1 7.4 30.9 3.2 30.1 2.6 8.5
50 to 99 lbs 47.1 2.7 41.9 1.8 40.0 1.1 16.3
100 to 499 lbs 23.4 3.5 41.6 2.9 27.1 1.6 S
500 to 749 lbs 37.4 1.2 43.1 0.3 44.7 0.2 33.8
750 to 999 lbs 39.7 0.6 26.8 0.2 32.6 0.2 30.2
1,000 to 9,999 lbs S S S S S S 26.8
10,000 to 49,999 lbs 40.1 4.6 21.1 8.2 25.1 6.8 8.1
50,000 to 99,999 lbs S S S S S S 41.4
100,000 lbs or more 40.5 3.0 45.0 8.8 34.6 6.2 41.1

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 28.1 – 30.3 – 24.9 – 8.6
Less than 50 lbs 33.1 7.6 30.9 7.5 30.1 7.3 8.5
50 to 99 lbs 47.1 3.0 41.9 3.1 40.0 3.7 16.3
100 to 499 lbs 23.4 4.4 42.1 4.8 32.0 4.9 11.1
500 to 749 lbs 37.4 2.0 43.1 3.5 44.7 2.8 33.8
750 to 999 lbs 41.9 1.1 28.4 2.9 33.3 1.9 35.6
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 31.0 – 27.9 – 23.4 – 6.7
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 S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 26.0
10,000 to 49,999 lbs 40.2 9.4 21.2 11.0 25.1 7.0 8.0
50,000 to 99,999 lbs S S S S S S 41.4
100,000 lbs or more 40.5 7.7 48.2 10.8 41.8 7.5 31.8

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 29.9
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 S S S S S S 31.6
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 – – – – – – –

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 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

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 25.2 – 37.1 – 32.9 – S
Less than 50 lbs 48.9 3.2 45.4 0.8 S S S
50 to 99 lbs S S 39.5 0.5 41.7 0.3 S
100 to 499 lbs S S 33.1 2.1 32.1 0.8 S
500 to 749 lbs 29.8 0.5 40.1 1.3 39.6 0.1 S
750 to 999 lbs 46.5 0.4 42.6 0.6 S S 40.2
1,000 to 9,999 lbs 40.7 12.2 48.2 10.7 44.0 12.2 S
10,000 to 49,999 lbs 34.2 4.8 39.5 7.8 46.8 5.5 S
50,000 to 99,999 lbs 48.5 3.6 S S S S 34.4
100,000 lbs or more 44.9 3.5 S S S S 31.4

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.