Table B-4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size for State of Origin: 2002

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 9.2 14.7 S S 46.8
Less than 50 lbs 12.7 2.1 9.6 22.9 0.1 S
50 to 99 lbs 11.8 0.7 7.4 27.0 23.6
100 to 499 lbs 10.2 1.9 7.7 0.2 18.5 0.3 23.2
500 to 749 lbs 7.6 0.5 8.6 30.3 0.2 25.1
750 to 999 lbs 13.5 0.5 15.4 34.8 0.3 42.8
1,000 to 9,999 lbs 10.7 1.3 9.6 0.6 23.6 2.9 23.9
10,000 to 49,999 lbs 22.2 3.6 20.2 4.0 S S 28.1
50,000 to 99,999 lbs 13.9 0.4 15.3 2.5 26.9 2.7 23.1
100,000 lbs or more 22.8 2.9 20.2 5.8 29.8 7.3 22.4

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 12.9 12.0 21.7 28.2
Less than 50 lbs 15.3 2.0 9.6 30.6 0.1 47.6
50 to 99 lbs 15.1 0.6 10.1 34.6 0.3 37.0
100 to 499 lbs 8.1 2.1 9.1 0.2 17.2 0.4 17.0
500 to 749 lbs 9.4 0.5 8.4 48.6 0.3 44.0
750 to 999 lbs 12.2 0.4 13.3 S S 39.4
1,000 to 9,999 lbs 13.2 1.9 10.8 0.4 45.4 3.3 28.4
10,000 to 49,999 lbs 26.6 4.1 12.9 3.9 18.7 4.9 21.8
50,000 to 99,999 lbs 14.8 0.7 16.6 2.6 17.6 3.6 18.0
100,000 lbs or more 22.1 3.0 18.9 5.7 47.4 8.1 24.1

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 11.3 8.4 5.9 12.6
Less than 50 lbs 16.9 2.8 10.9 16.7 8.6
50 to 99 lbs 13.2 0.6 11.1 24.9 16.0
100 to 499 lbs 8.2 1.6 9.4 0.2 20.5 0.5 15.3
500 to 749 lbs 10.7 0.5 8.9 28.6 0.4 23.3
750 to 999 lbs 13.2 0.3 13.6 35.1 0.5 23.3
1,000 to 9,999 lbs 13.7 3.2 11.4 0.8 16.3 2.2 17.1
10,000 to 49,999 lbs 26.0 4.4 13.7 3.8 4.9 3.2 12.8
50,000 to 99,999 lbs 14.9 1.0 16.6 3.3 17.7 4.1 18.1
100,000 lbs or more 43.7 0.2 36.7 1.5 44.2 2.4 38.2

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 39.5 25.9 27.1 15.1
Less than 50 lbs 24.4 0.4 32.1 25.4 41.0
50 to 99 lbs S S 29.6 24.8 32.9
100 to 499 lbs 36.0 5.4 36.1 0.4 38.2 0.6 28.8
500 to 749 lbs S S S S S S 25.7
750 to 999 lbs S S S S S S 25.0
1,000 to 9,999 lbs 45.1 8.3 47.3 2.2 S S 13.6
10,000 to 49,999 lbs S S 24.9 5.9 29.4 4.8 9.5
50,000 to 99,999 lbs 27.2 5.7 29.5 5.1 27.3 5.3 19.7
100,000 lbs or more S S S S S S 42.0

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 13.9 16.3 10.0 13.2
Less than 50 lbs 18.3 3.4 10.9 17.7 8.8
50 to 99 lbs 12.7 0.8 11.6 25.4 15.8
100 to 499 lbs 8.6 2.1 10.2 0.4 21.6 0.4 15.5
500 to 749 lbs 13.8 0.6 8.9 0.2 29.9 0.3 22.3
750 to 999 lbs 15.2 0.4 12.4 0.1 38.1 0.5 22.6
1,000 to 9,999 lbs 16.2 2.8 13.3 1.0 17.6 1.9 17.5
10,000 to 49,999 lbs 35.7 4.9 22.4 3.3 9.8 3.5 15.2
50,000 to 99,999 lbs 15.3 0.6 14.9 2.2 15.8 3.0 25.8
100,000 lbs or more 39.6 0.2 44.6 2.0 S S 35.5

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
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

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 38.1 48.7 18.8
Less than 50 lbs 37.8 0.5 42.4 S S 23.7
50 to 99 lbs 22.8 0.5 25.6 0.2 22.6 0.1 12.6
100 to 499 lbs S S 40.0 1.4 36.6 1.5 5.4
500 to 749 lbs 26.8 1.7 42.3 2.0 S S 25.8
750 to 999 lbs S S 45.9 0.6 S S 29.7
1,000 to 9,999 lbs 49.0 6.4 38.6 7.9 S S 20.6
10,000 to 49,999 lbs S S 40.5 12.0 37.5 10.7 21.6
50,000 to 99,999 lbs
100,000 lbs or more S S S S S S 31.6

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
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

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 38.1 48.7 18.8
Less than 50 lbs 37.8 0.5 42.4 S S 23.7
50 to 99 lbs 22.8 0.5 25.6 0.2 22.6 0.1 12.6
100 to 499 lbs S S 40.0 1.4 36.6 1.5 5.4
500 to 749 lbs 26.8 1.7 42.3 2.0 S S 25.8
750 to 999 lbs S S 45.9 0.6 S S 29.7
1,000 to 9,999 lbs 49.0 6.4 38.6 7.9 S S 20.6
10,000 to 49,999 lbs S S 40.5 12.0 37.5 10.7 21.6
50,000 to 99,999 lbs
100,000 lbs or more S S S S S S 31.6

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 27.4 32.8 20.4 24.3
Less than 50 lbs 46.9 7.2 18.9 5.4 38.8 9.4 27.1
50 to 99 lbs 36.5 3.7 25.6 3.8 48.6 4.2 S
100 to 499 lbs 43.4 6.4 34.2 4.2 35.4 6.0 41.4
500 to 749 lbs S S 49.6 3.7 40.0 2.5 S
750 to 999 lbs S S S S S S 26.9
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 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 23.0 21.1 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
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more 23.0 21.1 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 12.4 38.8 S S 21.6
Less than 50 lbs 15.4 4.2 15.6 0.2 25.3 0.1 20.7
50 to 99 lbs 24.3 0.8 20.4 0.1 26.1 14.5
100 to 499 lbs 32.0 3.2 15.3 0.8 29.5 0.4 23.6
500 to 749 lbs 24.9 1.5 22.5 0.4 41.9 0.3 28.9
750 to 999 lbs 40.9 1.3 41.7 0.7 46.4 0.3 S
1,000 to 9,999 lbs 25.3 2.4 24.8 3.7 29.2 3.8 34.8
10,000 to 49,999 lbs 21.7 3.4 S S S S 15.5
50,000 to 99,999 lbs 29.4 0.5 33.6 1.9 33.4 3.9 42.9
100,000 lbs or more 37.1 5.9 35.8 11.7 37.8 8.3 17.2

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 27.0 17.2 31.6 18.4
Less than 50 lbs 18.2 9.5 22.5 4.9 31.8 10.8 18.3
50 to 99 lbs 28.3 1.8 18.5 2.2 34.8 6.3 20.5
100 to 499 lbs 42.5 6.3 17.5 4.4 37.9 7.2 32.8
500 to 749 lbs 37.2 4.1 33.7 5.5 S S 31.3
750 to 999 lbs S S 38.6 3.3 S S 38.0
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
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

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 13.7 42.9 S S 27.9
Less than 50 lbs 18.8 2.1 17.1 23.7 26.3
50 to 99 lbs 18.7 0.3 27.0 25.3 S
100 to 499 lbs 17.2 1.7 22.8 0.7 42.3 0.4 23.0
500 to 749 lbs 20.1 0.7 32.3 0.4 36.0 0.3 14.7
750 to 999 lbs 33.2 0.8 S S 48.0 0.4 S
1,000 to 9,999 lbs 25.5 5.1 24.6 4.8 29.2 4.1 34.3
10,000 to 49,999 lbs 20.6 5.2 S S S S 15.3
50,000 to 99,999 lbs 29.4 1.1 33.6 2.8 33.4 4.3 42.9
100,000 lbs or more 37.5 1.8 37.4 9.7 37.8 7.8 21.5

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 35.5 40.5 40.6 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 S S S S S S 30.7
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 47.8
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 40.5 12.5 41.1 11.4 40.6 10.5 28.4

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 22.7 34.4 36.0 S
Less than 50 lbs 27.1 5.4 44.4 1.8 26.7 0.9 S
50 to 99 lbs 45.3 3.8 21.9 1.4 S S S
100 to 499 lbs 15.7 3.9 28.5 5.2 S S S
500 to 749 lbs 23.3 0.6 46.8 1.2 S S S
750 to 999 lbs 40.5 0.7 41.9 0.4 S S 34.2
1,000 to 9,999 lbs 33.7 3.8 28.9 8.0 S S S
10,000 to 49,999 lbs 47.2 6.1 32.0 11.1 S S 32.4
50,000 to 99,999 lbs S S 47.9 4.1 S S 28.6
100,000 lbs or more S S S S S S 27.9

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.