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 13.3 10.4 16.3
Less than 50 miles 29.3 2.9 13.9 4.5 16.8 0.5
50 to 99 miles 14.2 1.0 15.4 0.9 16.9 0.4
100 to 249 miles 9.1 1.8 16.2 2.9 12.9 2.1
250 to 499 miles 17.1 1.6 13.7 1.2 15.3 2.5
500 to 749 miles 11.9 0.6 23.1 1.1 23.9 3.2
750 to 999 miles 32.2 2.0 8.8 0.3 8.8 1.5
1,000 to 1,499 miles 23.0 0.6 16.0 0.2 16.0 1.0
1,500 to 1,999 miles 21.2 0.8 46.5 2.8 48.0 8.3
2,000 miles or more 30.0 S S S S

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 13.9 10.7 16.5
Less than 50 miles 30.6 3.0 14.0 4.5 16.8 0.5
50 to 99 miles 15.1 1.0 15.5 0.8 17.1 0.3
100 to 249 miles 8.1 2.0 17.3 3.2 14.4 2.3
250 to 499 miles 17.8 1.6 14.0 1.2 15.7 2.5
500 to 749 miles 12.2 0.7 23.3 1.1 24.2 3.3
750 to 999 miles 33.1 2.1 9.1 0.3 9.1 1.6
1,000 to 1,499 miles 24.5 0.6 16.0 0.2 16.2 1.0
1,500 to 1,999 miles 24.0 0.9 48.0 3.0 49.4 8.7
2,000 miles or more 29.4 S S S S

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 14.6 7.8 25.3
Less than 50 miles 31.4 3.3 14.0 4.6 16.6 0.9
50 to 99 miles 16.3 1.2 13.1 1.5 13.4 0.7
100 to 249 miles 12.0 1.9 12.4 1.6 11.9 1.9
250 to 499 miles 18.9 1.6 10.7 1.0 10.1 2.6
500 to 749 miles 12.2 0.8 12.6 0.7 13.3 2.9
750 to 999 miles 34.7 2.2 10.7 0.4 10.4 1.9
1,000 to 1,499 miles 24.4 0.6 14.7 0.3 15.5 1.4
1,500 to 1,999 miles 25.3 0.9 S S S S
2,000 miles or more 31.4 S S S S

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 20.1 9.1 28.4
Less than 50 miles S S 22.0 4.9 25.7 0.6
50 to 99 miles 15.7 0.9 20.8 1.9 21.8 0.5
100 to 249 miles 12.2 2.6 13.2 1.9 12.4 2.3
250 to 499 miles 20.1 2.2 8.7 2.2 8.6 3.4
500 to 749 miles 13.6 1.7 14.7 1.4 15.5 3.3
750 to 999 miles 35.8 2.5 11.5 0.7 11.3 2.4
1,000 to 1,499 miles 25.7 0.9 14.1 0.4 14.9 1.7
1,500 to 1,999 miles 26.8 1.2 S S S S
2,000 miles or more 33.7 S S S S

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 9.2 9.6 15.8
Less than 50 miles 8.2 4.7 14.1 5.5 14.1 2.3
50 to 99 miles 19.5 1.7 15.5 1.8 16.6 1.4
100 to 249 miles 20.7 4.3 20.1 3.0 19.6 4.1
250 to 499 miles 15.7 1.0 33.8 1.7 34.5 2.9
500 to 749 miles 22.0 1.1 17.7 0.3 17.1 2.3
750 to 999 miles 24.3 0.7 21.9 0.2 21.8 1.2
1,000 to 1,499 miles 47.4 0.3 30.6 33.0 0.7
1,500 to 1,999 miles 46.6 0.3 31.9 33.5 1.1
2,000 miles or more S S S S S S

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 13.1 19.0 18.2
Less than 50 miles 42.5 1.2 45.1 1.3 S S
50 to 99 miles 42.2 1.4 46.8 1.8 45.4 0.4
100 to 249 miles 20.0 1.7 28.0 2.6 28.7 1.1
250 to 499 miles 19.1 3.2 29.0 2.9 30.4 2.5
500 to 749 miles 11.4 5.0 21.1 4.6 22.2 4.4
750 to 999 miles 20.0 1.9 17.9 1.6 17.8 2.7
1,000 to 1,499 miles 32.7 1.6 30.9 1.5 30.8 2.1
1,500 to 1,999 miles 26.9 1.9 27.3 1.3 26.8 3.3
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 37.9 42.6 47.5
Less than 50 miles 38.4 10.0 39.5 10.1 S S
50 to 99 miles S S S S S S
100 to 249 miles 36.8 9.5 39.6 8.7 38.1 10.1
250 to 499 miles S S 43.9 9.3 47.0 9.6
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

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 32.9 38.6 37.4
Less than 50 miles 38.6 9.7 39.6 9.8 S S
50 to 99 miles S S S S S S
100 to 249 miles 36.8 10.5 39.6 10.7 38.1 11.8
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

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 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 S S 45.5 9.3 48.1 9.9
500 to 749 miles S S S S S S
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 S S S S 49.5
Less than 50 miles
50 to 99 miles
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 38.8 7.3 45.7 3.6 S S
1,500 to 1,999 miles 45.2 5.6 47.1 6.3 47.9 8.1
2,000 miles or more S S 47.3 3.5 47.0 8.3

Pipeline

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 37.6 36.9 S S
Less than 50 miles S S S S S S
50 to 99 miles S S
100 to 249 miles 42.4 13.8 42.0 13.7 S S
250 to 499 miles S S S S 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 20.9 23.0 20.3
Less than 50 miles S S 46.1 0.5 49.4
50 to 99 miles 30.1 4.5 38.7 5.9 38.5 0.7
100 to 249 miles 24.3 5.0 S S S S
250 to 499 miles 38.4 3.8 31.9 4.4 35.4 2.2
500 to 749 miles 29.3 3.3 36.7 6.3 37.6 5.3
750 to 999 miles 23.0 1.3 25.8 1.3 25.3 1.3
1,000 to 1,499 miles 41.2 1.3 S S S S
1,500 to 1,999 miles 25.0 3.6 28.4 4.9 28.0 6.6
2,000 miles or more S S 48.8 0.2 S S

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 28.1 30.3 24.9
Less than 50 miles S S 44.0 1.5 47.8 0.1
50 to 99 miles 27.7 4.2 S S S S
100 to 249 miles 24.5 6.4 37.0 3.8 37.8 1.8
250 to 499 miles 49.5 4.8 31.3 4.9 29.9 3.5
500 to 749 miles 30.8 3.9 28.6 2.7 27.9 2.6
750 to 999 miles 26.3 1.9 36.7 2.3 36.8 4.0
1,000 to 1,499 miles 43.9 2.2 25.3 1.5 25.3 2.1
1,500 to 1,999 miles 38.2 1.4 29.7 1.6 29.4 3.6
2,000 miles or more S S S S S S

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 31.0 27.9 23.4
Less than 50 miles S S S S S S
50 to 99 miles S S 44.7 6.8 43.5 0.8
100 to 249 miles S S S S S S
250 to 499 miles S S 41.9 6.2 43.2 3.2
500 to 749 miles 46.9 5.9 S S S S
750 to 999 miles S S 45.4 1.2 43.8 0.8
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 38.3 5.1 29.3 4.7 28.8 5.9
2,000 miles or more

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
50 to 99 miles S S S S S S
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 S S 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
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 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
50 to 99 miles
100 to 249 miles
250 to 499 miles
500 to 749 miles S S S S S S
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 25.2 37.1 32.9
Less than 50 miles 27.9 8.1 26.2 12.1 43.9 6.5
50 to 99 miles 34.4 1.7 S S S S
100 to 249 miles S S S S S S
250 to 499 miles 49.7 5.4 42.8 7.0 41.7 9.8
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.