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 4.7 9.4 17.1 11.8
Less than 50 lbs 10.9 1.7 13.7 11.0 0.1 10.0
50 to 99 lbs 11.4 0.7 11.2 11.5 23.2
100 to 499 lbs 5.6 0.7 18.1 0.4 10.0 0.3 26.4
500 to 749 lbs 11.6 0.3 21.8 0.2 20.7 0.1 40.8
750 to 999 lbs 12.4 0.4 18.0 0.1 23.1 43.6
1,000 to 9,999 lbs 10.6 1.8 10.5 1.3 12.8 1.0 17.9
10,000 to 49,999 lbs 8.5 2.1 11.1 3.1 15.0 3.1 15.5
50,000 to 99,999 lbs 9.6 0.3 14.7 2.0 18.1 1.0 13.0
100,000 lbs or more 29.9 0.8 24.4 2.7 28.9 4.8 45.9

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 5.2 9.2 14.9 20.4
Less than 50 lbs 11.7 0.7 26.2 14.5 29.8
50 to 99 lbs 14.5 0.4 16.7 8.5 48.6
100 to 499 lbs 8.2 0.8 22.9 0.4 14.2 0.2 31.9
500 to 749 lbs 10.5 0.4 24.6 0.2 17.1 0.1 35.7
750 to 999 lbs 13.7 0.5 18.9 0.1 25.2 40.7
1,000 to 9,999 lbs 10.3 2.3 10.3 1.3 13.7 1.0 17.5
10,000 to 49,999 lbs 6.6 1.6 11.6 3.2 11.4 4.2 10.7
50,000 to 99,999 lbs 9.9 0.4 14.9 2.0 18.8 1.0 13.9
100,000 lbs or more 31.0 1.1 25.5 3.0 29.1 5.7 45.5

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 4.8 9.6 11.8 20.9
Less than 50 lbs 11.2 0.6 26.6 16.8 34.4
50 to 99 lbs 15.7 0.5 17.0 11.0 S
100 to 499 lbs 8.7 0.9 23.0 0.4 14.6 0.2 33.1
500 to 749 lbs 10.4 0.4 24.8 0.2 16.4 0.1 36.5
750 to 999 lbs 13.6 0.5 19.0 0.1 25.4 0.2 41.0
1,000 to 9,999 lbs 10.5 2.4 10.4 1.3 12.2 1.1 16.6
10,000 to 49,999 lbs 6.7 2.0 11.6 3.3 11.3 2.2 10.5
50,000 to 99,999 lbs 9.6 0.4 14.9 2.1 19.1 1.2 13.8
100,000 lbs or more 38.5 0.9 31.5 2.9 42.8 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 9.2 12.9 12.5 5.4
Less than 50 lbs 20.5 0.6 16.9 20.9 10.2
50 to 99 lbs 16.4 0.2 16.9 11.9 18.1
100 to 499 lbs 17.3 1.1 12.1 16.7 0.3 11.1
500 to 749 lbs 14.0 0.3 11.4 21.0 0.2 12.7
750 to 999 lbs 21.7 0.9 16.1 30.3 0.2 15.5
1,000 to 9,999 lbs 16.9 3.2 13.3 0.8 15.0 1.3 5.4
10,000 to 49,999 lbs 9.3 3.2 15.9 3.6 12.1 4.0 11.4
50,000 to 99,999 lbs 16.3 0.6 16.3 3.3 21.3 1.1 35.3
100,000 lbs or more 33.5 0.5 36.3 5.0 S S 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 8.4 15.8 14.2 20.2
Less than 50 lbs 18.1 1.4 31.1 13.5 S
50 to 99 lbs 23.8 0.8 20.0 20.8 30.5
100 to 499 lbs 18.9 1.7 29.0 0.8 32.9 0.4 12.0
500 to 749 lbs 21.1 0.9 31.8 0.4 27.5 0.2 16.3
750 to 999 lbs 19.8 0.4 25.6 0.2 25.2 0.1 9.3
1,000 to 9,999 lbs 16.4 2.7 13.4 2.4 10.2 2.1 16.5
10,000 to 49,999 lbs 9.4 2.1 21.5 5.3 20.1 4.5 16.1
50,000 to 99,999 lbs 22.3 0.6 24.4 2.7 26.0 3.2 21.8
100,000 lbs or more S S 43.8 5.4 35.2 3.5 47.8

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 25.6 29.2 27.4 17.0
Less than 50 lbs S S S S S S S
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 29.9
10,000 to 49,999 lbs 44.6 7.7 36.7 0.7 43.9 1.6 25.2
50,000 to 99,999 lbs 49.1 3.2 S S 47.2 0.8 26.1
100,000 lbs or more 35.5 12.6 29.5 10.3 28.2 10.2 19.6

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 43.6 S S 40.2 23.7
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 31.6
500 to 749 lbs
750 to 999 lbs
1,000 to 9,999 lbs S S S S S S 45.5
10,000 to 49,999 lbs S S 49.8 19.8 46.0 15.1 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 31.4

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 S S S S S S 30.7
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 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 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
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 45.4 39.6 46.6
Less than 50 lbs S S S S S S 31.6
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 45.5
10,000 to 49,999 lbs S S 49.8 16.3 46.0 14.1 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

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 17.7 S S S S 6.3
Less than 50 lbs 18.6 5.3 19.3 4.6 28.4 6.0 6.3
50 to 99 lbs 34.9 1.8 26.7 2.0 37.8 1.7 9.9
100 to 499 lbs 27.0 3.2 19.1 10.4 23.9 10.7 8.7
500 to 749 lbs 42.1 2.1 S S S S 24.7
750 to 999 lbs 48.4 0.7 27.7 2.4 27.6 2.2 14.8
1,000 to 9,999 lbs S S S S S S 15.7
10,000 to 49,999 lbs S S S S S S 30.7
50,000 to 99,999 lbs S S S S S S 41.3
100,000 lbs or more S S S S S S 30.4

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 50.0 47.0 S S S
Less than 50 lbs S S S S S S S
50 to 99 lbs S S S S 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 47.0 10.5 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 11.9 40.8 S S 5.5
Less than 50 lbs 16.0 3.7 19.0 4.2 14.3 4.7 5.5
50 to 99 lbs 20.8 2.0 20.0 2.1 15.7 2.5 9.6
100 to 499 lbs 12.3 2.1 11.7 5.0 18.0 5.6 14.4
500 to 749 lbs 27.2 0.7 29.7 1.6 S S 22.8
750 to 999 lbs 25.9 0.3 29.7 0.5 49.1 0.6 30.2
1,000 to 9,999 lbs S S S S S S 25.9
10,000 to 49,999 lbs S S S S S S 14.1
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more S S S S S S 29.1

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 12.0 12.1 12.7 5.6
Less than 50 lbs 16.0 3.4 19.0 3.1 14.3 3.5 5.5
50 to 99 lbs 20.9 1.9 20.1 1.3 16.1 1.7 9.8
100 to 499 lbs 12.8 2.0 13.1 3.2 16.3 3.2 9.5
500 to 749 lbs 25.1 0.6 32.3 1.8 29.6 1.5 29.0
750 to 999 lbs 30.2 0.3 31.5 0.5 41.5 0.6 39.3
1,000 to 9,999 lbs S S S S S S 28.9
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 41.0 24.7 23.5 10.6
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 42.0 6.9 26.8 1.2 42.4 1.2 23.4
10,000 to 49,999 lbs 42.8 12.1 27.2 11.0 30.1 9.9 13.2
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 27.9

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 24.3
Less than 50 lbs S S S S S S 29.8
50 to 99 lbs S S S S S S 29.9
100 to 499 lbs S S S S S S 29.0
500 to 749 lbs S S S S S S 32.8
750 to 999 lbs S S S S S S 29.8
1,000 to 9,999 lbs S S S S S S 33.5
10,000 to 49,999 lbs S S S S S S 25.9
50,000 to 99,999 lbs S S S S S S S
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 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 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 21.1 30.6 31.5 48.0
Less than 50 lbs 25.2 8.7 18.1 1.6 S S 44.3
50 to 99 lbs 43.8 1.7 36.4 0.5 S S 32.4
100 to 499 lbs 32.4 1.6 47.8 1.6 S S S
500 to 749 lbs S S S S 38.2 0.6 S
750 to 999 lbs 44.0 0.9 S S 41.4 0.3 S
1,000 to 9,999 lbs 35.3 5.3 S S 25.4 13.0 S
10,000 to 49,999 lbs 49.8 6.3 47.9 8.8 43.0 10.9 S
50,000 to 99,999 lbs S S 48.1 3.1 48.9 3.7 S
100,000 lbs or more S S S S S S 33.1

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.