Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for State of Origin: 2002

Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for State of Origin: 2002

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

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All modes

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 4.0 9.6 5.8
Less than 50 miles 3.2 1.2 12.6 2.4 15.9 1.2
50 to 99 miles 7.1 0.6 16.0 0.9 15.1 0.5
100 to 249 miles 8.2 0.5 10.2 0.9 12.6 1.2
250 to 499 miles 10.4 0.8 9.7 0.7 10.0 1.0
500 to 749 miles 29.4 1.2 9.3 0.2 11.3 0.7
750 to 999 miles 12.1 0.3 14.8 0.3 15.0 1.1
1,000 to 1,499 miles 9.9 0.5 13.7 0.2 13.5 1.2
1,500 to 1,999 miles 7.0 0.7 18.1 0.4 18.4 3.3
2,000 miles or more 6.9 0.6 8.5 0.2 8.3 1.9

Single modes

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 4.8 9.9 4.9
Less than 50 miles 3.2 1.5 13.0 2.5 16.4 1.4
50 to 99 miles 8.9 0.7 16.9 0.9 15.8 0.7
100 to 249 miles 9.0 0.7 9.8 1.0 12.3 1.2
250 to 499 miles 11.1 0.9 10.0 0.7 10.3 1.2
500 to 749 miles 38.3 1.5 9.4 0.2 11.7 0.7
750 to 999 miles 15.1 0.4 15.2 0.3 15.4 1.1
1,000 to 1,499 miles 13.7 0.6 13.5 0.2 13.4 1.2
1,500 to 1,999 miles 12.6 0.9 16.1 0.4 15.3 2.3
2,000 miles or more 7.6 0.6 10.3 0.2 10.2 2.3

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 4.9 12.4 6.7
Less than 50 miles 3.3 1.8 16.1 3.0 18.0 2.0
50 to 99 miles 8.9 0.8 17.1 1.0 16.2 0.9
100 to 249 miles 9.9 0.7 12.6 1.0 15.6 1.8
250 to 499 miles 13.4 0.9 12.2 1.0 12.2 1.3
500 to 749 miles 41.6 1.7 10.0 0.2 10.3 0.4
750 to 999 miles 16.3 0.4 12.5 0.2 12.5 0.7
1,000 to 1,499 miles 14.6 0.6 16.0 0.2 16.1 0.9
1,500 to 1,999 miles 16.0 1.0 21.5 0.4 20.9 2.4
2,000 miles or more 8.3 0.6 11.8 0.3 11.7 2.4

For-hire truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 9.2 16.5 6.0
Less than 50 miles 11.0 2.0 24.0 4.2 26.4 1.4
50 to 99 miles 17.5 0.9 23.9 1.7 21.4 0.8
100 to 249 miles 13.7 1.2 18.7 1.4 23.9 2.0
250 to 499 miles 15.3 1.3 10.3 1.2 11.0 1.0
500 to 749 miles S S 13.6 0.5 13.4 0.4
750 to 999 miles 20.6 0.8 17.0 0.6 16.9 1.1
1,000 to 1,499 miles 15.9 1.0 14.1 0.4 14.1 1.4
1,500 to 1,999 miles 16.3 1.7 15.6 0.6 14.8 2.0
2,000 miles or more 6.8 1.0 13.0 0.6 12.6 3.4

Private truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 6.2 13.9 20.5
Less than 50 miles 6.3 1.8 16.6 2.6 17.4 4.4
50 to 99 miles 10.2 1.1 13.2 0.7 13.4 1.4
100 to 249 miles 7.1 0.4 12.7 0.9 11.3 2.5
250 to 499 miles 11.3 0.6 22.7 1.1 22.1 2.9
500 to 749 miles 37.6 0.6 25.9 0.2 28.1 1.1
750 to 999 miles 22.4 0.2 14.7 14.9 0.6
1,000 to 1,499 miles 31.8 0.7 34.6 0.1 34.7 1.2
1,500 to 1,999 miles 24.2 0.5 S S S S
2,000 miles or more 33.1 0.7 42.4 0.2 42.7 2.9

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 23.6 23.1 14.0
Less than 50 miles S S S S S S
50 to 99 miles 37.8 3.2 43.1 2.2 47.3 0.3
100 to 249 miles 45.2 1.5 S S S S
250 to 499 miles 26.6 3.7 35.3 4.1 33.3 1.7
500 to 749 miles S S 45.9 2.6 46.4 1.3
750 to 999 miles 48.8 0.6 48.7 3.5 48.0 4.3
1,000 to 1,499 miles 22.8 2.2 24.4 4.3 25.8 4.8
1,500 to 1,999 miles 29.9 3.9 20.2 4.3 19.7 5.0
2,000 miles or more 25.7 1.8 29.4 2.1 30.0 4.0

Water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 43.0 39.2 S S
Less than 50 miles 44.2 12.7 43.4 14.0 43.1 8.9
50 to 99 miles
100 to 249 miles
250 to 499 miles S S S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles
1,500 to 1,999 miles
2,000 miles or more 30.7 17.2 27.1 19.2 S S

Shallow draft

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances S S S S S S
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles
250 to 499 miles
500 to 749 miles
750 to 999 miles
1,000 to 1,499 miles
1,500 to 1,999 miles
2,000 miles or more

Great Lakes

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances
Less than 50 miles
50 to 99 miles
100 to 249 miles
250 to 499 miles
500 to 749 miles
750 to 999 miles
1,000 to 1,499 miles
1,500 to 1,999 miles
2,000 miles or more

Deep draft

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances S S 48.8 S S
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles
250 to 499 miles S S S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles
1,500 to 1,999 miles
2,000 miles or more S S S S S S

Air (including truck and air)

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 15.0 41.4 23.2
Less than 50 miles
50 to 99 miles 29.0 1.3 S S S S
100 to 249 miles 30.0 1.7 S S S S
250 to 499 miles 30.0 5.4 28.0 4.0 48.1 3.2
500 to 749 miles 35.6 1.6 30.6 1.6 34.5 1.5
750 to 999 miles 26.2 0.7 32.5 2.1 36.0 1.3
1,000 to 1,499 miles 29.4 1.7 24.6 1.0 24.2 1.9
1,500 to 1,999 miles 16.6 4.2 32.1 4.3 32.7 4.1
2,000 miles or more 22.9 3.3 27.7 7.3 28.6 6.2

Pipeline

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 18.8 18.4 S S
Less than 50 miles 20.0 5.0 19.8 5.6 S S
50 to 99 miles S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles S S S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more S S S S S S

Multiple modes

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 7.6 18.5 24.6
Less than 50 miles 9.0 2.4 16.6 1.9 14.7
50 to 99 miles 20.7 1.4 28.0 1.6 31.2 0.1
100 to 249 miles 10.0 0.6 S S S S
250 to 499 miles 17.9 1.3 22.0 1.7 23.4 0.9
500 to 749 miles 17.0 0.5 28.6 1.0 27.1 0.7
750 to 999 miles 10.0 0.2 12.9 0.7 13.8 0.6
1,000 to 1,499 miles 10.5 0.6 41.0 2.4 39.8 3.1
1,500 to 1,999 miles 15.8 2.3 44.3 7.4 45.5 9.3
2,000 miles or more 12.6 1.8 31.4 6.1 30.0 7.4

Parcel, USPS or courier

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 7.5 9.8 13.5
Less than 50 miles 9.0 2.5 11.0 2.4 14.1 0.1
50 to 99 miles 20.7 1.4 15.3 1.3 17.8 0.1
100 to 249 miles 10.8 0.7 14.6 0.7 15.6 0.2
250 to 499 miles 17.9 1.4 14.1 1.2 13.3 0.7
500 to 749 miles 17.0 0.5 14.9 0.5 14.2 0.4
750 to 999 miles 10.2 0.2 14.1 0.4 14.6 0.5
1,000 to 1,499 miles 10.4 0.6 15.5 0.7 15.9 0.9
1,500 to 1,999 miles 17.2 2.4 12.9 0.9 12.6 1.5
2,000 miles or more 12.2 1.8 16.5 1.8 16.6 2.1

Truck and rail

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 21.2 28.5 31.5
Less than 50 miles S S S S S S
50 to 99 miles S S 44.6 2.8 47.7 0.3
100 to 249 miles S S S S S S
250 to 499 miles 31.7 2.0 42.5 3.3 41.2 1.4
500 to 749 miles 40.9 0.9 46.0 2.1 42.0 1.1
750 to 999 miles 41.2 2.0 31.4 1.0 31.3 0.6
1,000 to 1,499 miles S S S S 48.9 4.7
1,500 to 1,999 miles 31.1 6.1 41.1 6.9 40.5 5.8
2,000 miles or more 13.4 4.6 24.2 4.6 24.9 4.5

Truck and water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 37.7 S S S S
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles
250 to 499 miles S S S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more 41.6 5.7 S S S S

Rail and water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances S S S S S S
Less than 50 miles
50 to 99 miles
100 to 249 miles
250 to 499 miles
500 to 749 miles
750 to 999 miles
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more

Other Multiple modes

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances S S S S S S
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles
250 to 499 miles
500 to 749 miles
750 to 999 miles
1,000 to 1,499 miles
1,500 to 1,999 miles
2,000 miles or more

Other and unknown modes

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 11.2 29.8 12.8
Less than 50 miles 10.9 3.3 41.4 8.2 S S
50 to 99 miles 19.1 0.9 30.1 2.4 28.2 1.3
100 to 249 miles 32.0 1.2 30.4 3.1 33.1 1.4
250 to 499 miles 40.2 1.7 17.0 1.6 17.4 1.1
500 to 749 miles 25.3 0.8 26.0 0.8 27.0 1.8
750 to 999 miles 47.1 0.8 41.7 0.4 41.4 1.0
1,000 to 1,499 miles 33.0 1.5 32.9 0.6 32.3 1.8
1,500 to 1,999 miles 28.6 2.9 37.9 1.8 36.6 6.4
2,000 miles or more 18.9 1.5 18.4 2.1 18.5 6.2

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.