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 8.0 10.4 16.9
Less than 50 miles 13.5 3.1 22.4 6.1 27.6 1.3
50 to 99 miles 29.7 2.2 23.9 2.8 27.7 1.8
100 to 249 miles 12.5 1.8 13.4 5.5 14.3 5.4
250 to 499 miles 9.1 1.7 27.6 4.8 27.9 6.1
500 to 749 miles 24.8 1.5 33.2 0.5 34.7 1.1
750 to 999 miles 13.1 0.5 28.4 35.0 0.3
1,000 to 1,499 miles 26.4 1.1 36.6 41.2 0.6
1,500 to 1,999 miles S S 29.3 30.7 0.1
2,000 miles or more 20.4 0.7 36.3 36.0 0.7

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 8.4 12.0 17.1
Less than 50 miles 15.3 3.1 26.8 5.4 29.7 1.4
50 to 99 miles 28.4 2.1 24.7 3.5 30.0 2.1
100 to 249 miles 13.1 1.8 15.4 5.8 15.7 5.9
250 to 499 miles 9.0 1.8 27.8 5.0 28.5 6.6
500 to 749 miles 28.2 1.6 35.1 0.5 38.7 1.1
750 to 999 miles 14.6 0.5 29.9 0.1 37.4 0.4
1,000 to 1,499 miles 28.8 1.2 36.7 0.1 41.3 0.7
1,500 to 1,999 miles S S 30.1 31.6 0.1
2,000 miles or more 19.4 0.6 40.6 40.4 0.8

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 10.1 12.4 9.0
Less than 50 miles 15.3 3.1 16.8 3.6 26.5 2.6
50 to 99 miles 32.3 2.2 18.6 3.5 18.2 2.6
100 to 249 miles 15.3 2.2 18.1 1.5 16.3 1.8
250 to 499 miles 9.8 1.3 12.9 1.0 13.3 2.1
500 to 749 miles 32.3 2.6 35.8 0.7 34.4 3.2
750 to 999 miles 14.7 0.5 15.1 0.3 16.0 1.2
1,000 to 1,499 miles 39.0 1.5 18.9 0.2 18.9 1.2
1,500 to 1,999 miles S S 31.7 31.2 0.6
2,000 miles or more 19.5 0.6 27.9 0.2 27.4 1.8

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 12.8 16.8 10.8
Less than 50 miles 24.4 3.8 24.7 5.4 34.8 2.5
50 to 99 miles 46.6 2.9 23.4 4.3 22.1 2.6
100 to 249 miles 16.5 2.4 20.5 2.6 18.4 2.1
250 to 499 miles 12.0 1.7 13.8 1.4 14.3 2.2
500 to 749 miles 35.1 4.0 38.8 1.9 37.2 3.7
750 to 999 miles 16.1 0.7 15.4 0.6 16.2 1.4
1,000 to 1,499 miles 39.4 2.1 20.5 0.3 20.9 1.4
1,500 to 1,999 miles S S 28.7 0.1 28.0 0.7
2,000 miles or more 19.8 0.6 28.4 0.2 28.0 1.8

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 8.4 16.0 14.8
Less than 50 miles 11.7 3.7 18.9 4.0 25.6 3.9
50 to 99 miles 11.0 2.0 26.3 2.9 26.1 3.9
100 to 249 miles 14.2 2.0 17.9 1.6 18.9 2.0
250 to 499 miles 17.9 1.3 25.0 1.2 24.4 3.5
500 to 749 miles 31.3 0.4 25.0 0.2 25.8 1.5
750 to 999 miles 25.0 0.4 33.7 33.0 0.9
1,000 to 1,499 miles S S 44.9 0.2 43.3 2.3
1,500 to 1,999 miles S S S S S S
2,000 miles or more S S 34.6 35.5 1.1

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 15.3 19.4 19.9
Less than 50 miles S S 44.1 4.0 44.9 0.8
50 to 99 miles 43.1 2.0 40.9 3.6 45.0 2.1
100 to 249 miles 17.3 4.8 20.0 7.3 17.4 6.7
250 to 499 miles 23.0 4.7 29.4 5.9 29.9 6.8
500 to 749 miles 20.1 0.9 S S S S
750 to 999 miles 31.2 2.8 23.7 0.1 24.0 0.4
1,000 to 1,499 miles 35.6 1.8 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

Water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 38.9 43.2 S S
Less than 50 miles 36.1 3.9 S S 41.5 1.8
50 to 99 miles S S 38.2 10.9 39.4 8.8
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 S S S S
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles
2,000 miles or more

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 38.9 43.2 S S
Less than 50 miles 36.1 3.9 S S 41.5 1.8
50 to 99 miles S S 38.2 10.9 39.4 8.8
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 S S S S
1,000 to 1,499 miles S S S S S S
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
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

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 42.8 32.8 27.5
Less than 50 miles
50 to 99 miles
100 to 249 miles S S S S S S
250 to 499 miles 37.5 12.0 S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S 46.6 6.0 48.7 6.4
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles S S 48.0 1.5 45.1 2.1
2,000 miles or more S S S S S S

Pipeline

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 S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles S S
500 to 749 miles S S
750 to 999 miles S S
1,000 to 1,499 miles S S
1,500 to 1,999 miles S S
2,000 miles or more 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 19.7 37.8 32.3
Less than 50 miles 26.9 2.4 S S S S
50 to 99 miles S S S S S S
100 to 249 miles 29.2 4.5 41.1 10.6 33.2 10.5
250 to 499 miles 42.2 3.7 47.9 8.0 47.7 8.5
500 to 749 miles 21.7 1.4 26.7 0.9 27.0 1.0
750 to 999 miles 14.0 0.9 S S S S
1,000 to 1,499 miles 20.2 0.6 20.3 0.2 20.8 0.6
1,500 to 1,999 miles 36.9 1.0 45.8 0.2 44.9 1.0
2,000 miles or more 39.5 4.3 39.8 1.3 39.9 5.8

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 17.9 25.3 15.4
Less than 50 miles 27.1 3.1 27.9 5.2 36.1 0.3
50 to 99 miles 17.4 1.8 S S S S
100 to 249 miles 20.7 3.5 43.4 3.3 36.4 2.4
250 to 499 miles 41.1 4.5 21.0 3.3 21.5 2.3
500 to 749 miles 21.7 1.6 26.7 1.5 27.0 1.6
750 to 999 miles 11.4 0.7 21.2 1.4 21.0 1.8
1,000 to 1,499 miles 20.2 0.9 20.3 1.6 20.8 2.9
1,500 to 1,999 miles 35.9 1.4 21.7 0.5 22.2 1.8
2,000 miles or more 28.0 1.9 23.9 1.5 24.6 4.3

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 37.0 47.1 44.9
Less than 50 miles S S S S 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
750 to 999 miles
1,000 to 1,499 miles
1,500 to 1,999 miles S S S S S S
2,000 miles or more 45.1 13.1 41.1 14.6 41.2 14.7

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 S S S S S S
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles S S S S S S
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

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 43.7 49.0 45.9
Less than 50 miles
50 to 99 miles S S S S S S
100 to 249 miles 38.7 7.0 46.9 8.1 37.8 7.6
250 to 499 miles S S S S S S
500 to 749 miles
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

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
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

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 33.6 41.2 S S
Less than 50 miles 41.7 9.8 S S S S
50 to 99 miles 39.8 1.0 S S S S
100 to 249 miles 42.7 4.1 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 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 S S S 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.