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 3.7 8.0 8.0 7.3
Less than 50 lbs 14.7 1.5 11.7 13.3 9.9
50 to 99 lbs 12.6 0.3 7.4 10.9 10.7
100 to 499 lbs 9.0 0.7 7.3 11.5 12.7
500 to 749 lbs 13.4 0.3 7.3 12.5 13.6
750 to 999 lbs 15.5 0.2 5.7 15.0 15.1
1,000 to 9,999 lbs 6.2 1.0 4.2 0.3 6.5 0.3 3.9
10,000 to 49,999 lbs 6.8 2.0 10.4 2.3 8.7 2.7 8.4
50,000 to 99,999 lbs 19.0 1.2 23.2 2.6 9.1 0.4 15.2
100,000 lbs or more 9.3 1.6 9.7 2.6 11.2 2.8 12.5

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 4.5 8.4 8.3 18.7
Less than 50 lbs 13.5 0.5 22.2 18.6 39.9
50 to 99 lbs 12.8 0.2 11.6 12.5 13.0
100 to 499 lbs 9.3 0.6 8.5 13.9 14.9
500 to 749 lbs 15.6 0.3 8.0 13.4 16.6
750 to 999 lbs 16.9 0.3 6.2 15.8 18.1
1,000 to 9,999 lbs 6.2 1.3 4.2 0.3 6.7 0.3 4.3
10,000 to 49,999 lbs 7.2 2.1 10.7 2.4 8.7 2.5 8.4
50,000 to 99,999 lbs 19.8 1.2 23.5 2.7 9.1 0.4 15.5
100,000 lbs or more 9.7 1.6 10.1 2.5 11.5 2.7 12.5

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 4.6 8.9 7.8 11.6
Less than 50 lbs 12.4 0.4 22.3 17.7 20.9
50 to 99 lbs 14.9 0.2 11.5 14.2 16.6
100 to 499 lbs 10.6 0.8 8.4 0.1 14.1 0.2 15.4
500 to 749 lbs 15.5 0.4 8.0 14.0 0.1 17.1
750 to 999 lbs 18.2 0.4 6.2 16.3 0.1 18.3
1,000 to 9,999 lbs 6.3 1.7 4.2 0.8 6.8 0.6 4.1
10,000 to 49,999 lbs 7.3 1.9 10.9 4.1 9.4 2.0 8.3
50,000 to 99,999 lbs 24.8 1.8 23.8 4.3 11.5 1.0 15.2
100,000 lbs or more 14.7 0.4 29.0 2.7 25.8 1.4 37.0

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 4.4 10.9 9.8 6.2
Less than 50 lbs 16.9 0.4 15.4 23.7 16.6
50 to 99 lbs 15.1 0.2 16.7 21.0 8.9
100 to 499 lbs 14.1 1.3 11.1 19.1 0.3 9.9
500 to 749 lbs 20.1 0.5 13.9 19.4 0.1 7.1
750 to 999 lbs 20.4 0.3 16.0 24.2 0.1 10.6
1,000 to 9,999 lbs 12.6 2.6 7.1 0.5 8.7 0.6 4.3
10,000 to 49,999 lbs 9.2 3.2 10.3 3.0 11.4 1.8 8.6
50,000 to 99,999 lbs 24.7 1.5 25.2 3.8 15.3 1.2 15.2
100,000 lbs or more 16.8 0.5 26.7 2.1 18.1 0.6 17.7

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 8.1 13.1 17.1 7.7
Less than 50 lbs 18.4 0.9 24.2 21.6 7.3
50 to 99 lbs 19.4 0.5 15.1 22.3 13.3
100 to 499 lbs 12.9 0.7 11.5 0.3 18.2 0.1 10.6
500 to 749 lbs 18.3 0.5 9.9 12.0 14.0
750 to 999 lbs 26.3 0.7 8.7 15.0 15.6
1,000 to 9,999 lbs 7.2 1.9 4.7 1.3 7.8 1.6 7.2
10,000 to 49,999 lbs 13.0 2.5 18.2 5.3 19.3 3.2 8.9
50,000 to 99,999 lbs 29.4 2.4 31.2 5.1 21.8 2.3 20.3
100,000 lbs or more 30.8 0.6 42.4 4.6 S S 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 14.2 14.9 13.3 11.2
Less than 50 lbs S S S S S S 32.5
50 to 99 lbs S S S S S S S
100 to 499 lbs S S S S S S 27.7
500 to 749 lbs S S S S S S 30.9
750 to 999 lbs S S S S S S 29.8
1,000 to 9,999 lbs S S 38.9 S S 17.3
10,000 to 49,999 lbs 42.5 3.1 36.8 0.6 47.3 0.9 14.2
50,000 to 99,999 lbs 39.5 3.3 34.6 0.3 32.5 0.4 12.5
100,000 lbs or more 13.4 5.2 15.1 0.8 13.1 1.1 9.4

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 21.2 20.2 36.3 26.0
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 44.1
50,000 to 99,999 lbs
100,000 lbs or more 21.2 20.2 36.3 25.4

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 26.6 20.8 22.5 41.3
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 47.3
50,000 to 99,999 lbs
100,000 lbs or more 26.6 20.8 22.5 41.3

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 32.4 37.1 S S 42.7
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 33.1
50,000 to 99,999 lbs
100,000 lbs or more 32.4 0.1 37.1 0.1 S S 39.8

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 21.8 24.1 19.6 1.9
Less than 50 lbs 44.0 9.1 29.0 5.0 25.9 4.8 3.1
50 to 99 lbs 28.0 2.9 46.5 3.8 45.5 4.3 8.4
100 to 499 lbs 26.2 8.8 22.9 5.1 23.7 4.6 8.2
500 to 749 lbs S S 36.6 0.9 34.9 0.8 15.8
750 to 999 lbs S S S S S S 21.6
1,000 to 9,999 lbs 46.1 4.0 35.4 7.3 32.4 7.7 19.3
10,000 to 49,999 lbs S S S S S S 24.1
50,000 to 99,999 lbs S S S S S S 31.6
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 15.9 18.2 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 S S S S
500 to 749 lbs S S S S 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 32.6 30.3 S S S
100,000 lbs or more 15.8 0.2 18.1 0.2 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 15.4 43.9 25.1 6.4
Less than 50 lbs 17.8 3.9 15.7 2.1 17.4 2.0 6.8
50 to 99 lbs 28.0 1.7 15.8 1.1 15.7 1.1 8.1
100 to 499 lbs 20.9 2.4 18.4 2.9 22.6 2.8 7.4
500 to 749 lbs 20.8 0.9 19.1 0.7 20.8 0.7 21.4
750 to 999 lbs 44.7 0.3 37.0 0.3 34.5 0.3 44.9
1,000 to 9,999 lbs 35.1 0.2 29.8 0.2 46.3 0.4 35.9
10,000 to 49,999 lbs 18.6 0.2 30.2 7.3 29.4 8.3 14.9
50,000 to 99,999 lbs S S S S S S 30.5
100,000 lbs or more S S S S 34.5 12.5 21.6

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 16.3 14.9 17.6 6.5
Less than 50 lbs 17.8 3.7 15.8 1.8 17.4 3.3 6.8
50 to 99 lbs 28.0 1.8 15.8 1.3 15.8 1.8 8.6
100 to 499 lbs 20.9 2.5 18.9 1.7 23.3 2.7 7.5
500 to 749 lbs 21.0 0.9 18.4 1.5 21.2 1.3 20.7
750 to 999 lbs 44.8 0.4 37.2 1.1 35.4 0.7 44.8
1,000 to 9,999 lbs S S S S S S 30.9
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 22.9 S S 24.2 9.3
Less than 50 lbs
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 29.4
500 to 749 lbs S S S S S S 29.8
750 to 999 lbs S S S S S S 29.3
1,000 to 9,999 lbs 43.5 4.9 35.7 0.3 35.4 0.3 15.2
10,000 to 49,999 lbs 18.8 8.0 35.1 15.8 34.3 13.3 7.4
50,000 to 99,999 lbs S S S S S S 29.1
100,000 lbs or more 47.2 6.7 S S 44.0 12.6 30.1

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 31.7 41.3 42.7 16.1
Less than 50 lbs
50 to 99 lbs S S S S S S 30.3
100 to 499 lbs S S S S S S 24.7
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 37.5 1.1 S S S S 24.8
10,000 to 49,999 lbs 40.4 10.8 33.5 15.1 S S 32.4
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more 41.3 14.9 41.9 17.9 47.4 16.8 S

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 30.6
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 30.6

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 S S S S S S 31.6
100 to 499 lbs S S S S S S 29.6
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 31.6
10,000 to 49,999 lbs S S S S S S 30.0
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 29.3

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 24.4 23.8 29.1 36.9
Less than 50 lbs 26.7 3.0 21.2 44.2 35.6
50 to 99 lbs S S 23.9 0.1 S S S
100 to 499 lbs 28.9 1.7 29.2 1.2 47.2 0.7 S
500 to 749 lbs 29.4 0.7 25.9 0.4 33.2 0.2 S
750 to 999 lbs 33.9 0.3 34.0 0.1 45.7 S
1,000 to 9,999 lbs 14.2 7.0 17.4 2.6 16.8 4.4 15.9
10,000 to 49,999 lbs 35.5 7.0 40.6 5.2 35.3 7.7 19.7
50,000 to 99,999 lbs S S 35.5 3.9 S S 28.7
100,000 lbs or more 46.2 2.0 29.9 11.1 S S S

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.