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 20.9 8.9 23.7
Less than 50 miles 14.8 3.1 21.3 5.9 18.5 1.6
50 to 99 miles 16.4 1.1 15.7 1.8 15.8 1.1
100 to 249 miles 18.9 1.8 20.4 2.2 22.8 2.4
250 to 499 miles 38.6 2.5 29.7 3.7 26.6 4.7
500 to 749 miles 20.7 0.9 28.3 1.4 33.3 3.3
750 to 999 miles 27.9 0.7 25.7 0.5 27.8 2.5
1,000 to 1,499 miles 38.1 2.2 40.9 3.9 45.8 8.1
1,500 to 1,999 miles 40.0 0.3 22.8 22.8 0.1
2,000 miles or more S S 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 12.1 7.7 23.6
Less than 50 miles 14.1 2.4 15.9 5.6 19.3 1.5
50 to 99 miles 17.5 0.7 16.0 1.8 16.0 1.1
100 to 249 miles 21.2 1.8 20.7 2.1 23.2 2.4
250 to 499 miles 15.9 2.0 30.4 4.0 27.5 5.0
500 to 749 miles 15.7 0.8 28.2 1.4 33.2 3.4
750 to 999 miles 15.1 0.7 27.2 0.5 29.2 2.6
1,000 to 1,499 miles 14.8 2.0 41.1 4.0 46.1 8.3
1,500 to 1,999 miles S S 24.5 24.6 0.1
2,000 miles or more S S 49.7 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 14.9 10.0 13.6
Less than 50 miles 14.1 2.7 16.0 5.7 19.3 2.2
50 to 99 miles 17.5 0.9 16.0 2.0 16.0 1.4
100 to 249 miles 25.6 2.7 14.5 1.3 12.3 1.7
250 to 499 miles 16.2 1.5 31.4 2.9 30.3 4.6
500 to 749 miles 23.2 1.0 21.5 0.6 20.7 1.6
750 to 999 miles 17.9 0.8 22.1 0.2 21.2 1.6
1,000 to 1,499 miles 20.2 1.6 22.3 0.5 22.1 3.2
1,500 to 1,999 miles S S 24.4 24.6 0.2
2,000 miles or more S S 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 19.7 13.5 16.5
Less than 50 miles 12.5 2.6 25.4 7.1 32.7 1.7
50 to 99 miles 36.4 1.5 30.6 4.9 28.6 2.3
100 to 249 miles 30.7 4.7 16.8 3.9 14.8 2.5
250 to 499 miles 24.7 2.2 39.1 3.9 36.8 5.8
500 to 749 miles 27.8 1.4 23.6 1.2 22.5 2.2
750 to 999 miles 17.4 1.3 20.4 0.5 19.3 2.3
1,000 to 1,499 miles 20.7 1.9 22.5 1.2 22.5 3.8
1,500 to 1,999 miles S S 25.4 25.6 0.3
2,000 miles or more S S 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 13.1 14.8 15.5
Less than 50 miles 16.9 2.2 17.1 3.8 18.9 3.1
50 to 99 miles 10.9 1.5 26.4 3.2 27.1 3.4
100 to 249 miles 14.2 1.9 15.4 1.6 13.5 3.1
250 to 499 miles 17.3 1.7 15.5 0.7 16.0 3.8
500 to 749 miles 38.1 1.0 32.6 0.1 31.8 1.3
750 to 999 miles 42.9 0.7 47.6 48.5 1.4
1,000 to 1,499 miles 34.5 0.3 S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 24.1 26.7 37.0
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 31.6 9.5 34.6 9.0 34.0 6.7
500 to 749 miles 37.6 4.2 47.5 6.0 S S
750 to 999 miles 41.9 6.2 43.3 5.1 44.4 5.9
1,000 to 1,499 miles 44.3 8.0 49.3 8.0 S S
1,500 to 1,999 miles
2,000 miles or more

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

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
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

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 33.5 44.7 46.8
Less than 50 miles
50 to 99 miles
100 to 249 miles S S S S S S
250 to 499 miles 33.6 10.2 43.7 9.6 49.0 10.6
500 to 749 miles S S S S S S
750 to 999 miles S S 46.1 6.9 49.0 8.4
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

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
Less than 50 miles S S
50 to 99 miles S S
100 to 249 miles 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 44.6 S S S S
Less than 50 miles 22.4 2.3 42.3 2.9 S S
50 to 99 miles 21.8 2.9 S S S S
100 to 249 miles 33.9 4.5 S S S S
250 to 499 miles 23.0 3.3 S S 46.7 3.3
500 to 749 miles S S S S S S
750 to 999 miles S S 48.6 5.5 48.1 5.6
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 34.6 46.9 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 45.6 42.4 S S
Less than 50 miles 22.4 2.4 43.3 2.9 37.3 0.2
50 to 99 miles 22.5 3.0 37.6 3.1 37.4 0.9
100 to 249 miles 34.5 4.7 36.8 4.0 43.4 2.7
250 to 499 miles 23.0 3.5 S S 46.7 2.8
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 41.2 3.0 41.1 4.8
1,500 to 1,999 miles S S S S S S
2,000 miles or more 35.4 45.4 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 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
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 44.6 10.4 S S S S
1,500 to 1,999 miles
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
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 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 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 S S S S S S
Less than 50 miles 37.3 17.5 S S S S
50 to 99 miles 38.6 2.4 S S S S
100 to 249 miles 44.9 4.3 S S S S
250 to 499 miles S S S S S S
500 to 749 miles S S S S 48.5 2.2
750 to 999 miles S S 48.0 2.5 47.8 5.5
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.