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 8.7 22.1 10.0
Less than 50 miles 15.9 5.0 28.6 6.8 22.5 2.3
50 to 99 miles 11.8 1.3 17.0 1.3 16.2 0.9
100 to 249 miles 12.8 2.1 27.0 3.2 26.5 2.8
250 to 499 miles 20.1 2.5 10.8 1.3 11.1 1.4
500 to 749 miles 21.5 1.4 29.4 1.2 31.0 3.3
750 to 999 miles 19.4 0.7 21.3 0.9 20.4 1.6
1,000 to 1,499 miles 23.4 0.6 12.1 0.3 12.3 1.2
1,500 to 1,999 miles 9.7 24.7 0.1 24.9 0.8
2,000 miles or more 25.9 1.4 15.5 0.4 15.5 2.3

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 7.7 22.6 10.8
Less than 50 miles 16.7 4.9 28.7 6.6 22.4 2.2
50 to 99 miles 13.6 1.7 18.3 1.3 17.8 1.0
100 to 249 miles 13.8 2.8 28.1 3.3 27.4 3.4
250 to 499 miles 21.6 2.9 11.3 1.4 12.0 1.3
500 to 749 miles 16.9 1.0 32.7 1.2 34.9 3.8
750 to 999 miles 29.7 0.9 23.1 0.9 21.8 1.7
1,000 to 1,499 miles 24.2 0.4 16.5 0.3 17.0 1.4
1,500 to 1,999 miles 18.3 0.1 26.0 0.1 26.4 0.8
2,000 miles or more 18.5 0.4 12.6 0.3 12.6 1.6

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 8.5 16.5 7.0
Less than 50 miles 10.3 3.5 22.2 5.3 22.4 2.9
50 to 99 miles 13.6 1.5 18.5 1.6 18.0 1.4
100 to 249 miles 13.1 2.5 14.4 2.2 14.6 2.3
250 to 499 miles 22.0 2.7 10.3 1.4 10.1 1.2
500 to 749 miles 16.1 1.0 19.1 0.6 19.7 2.0
750 to 999 miles 32.2 0.9 31.9 1.0 31.3 2.1
1,000 to 1,499 miles 22.0 0.4 20.3 0.4 21.0 1.5
1,500 to 1,999 miles 23.9 0.1 27.0 0.1 27.4 1.1
2,000 miles or more 21.6 0.4 17.7 0.3 17.7 2.2

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 17.3 10.1
Less than 50 miles 17.8 3.9 22.8 5.7 24.5 2.2
50 to 99 miles 24.9 1.8 26.9 2.9 26.4 2.4
100 to 249 miles 16.3 2.2 16.9 2.2 19.6 2.4
250 to 499 miles 22.6 2.8 11.9 1.9 11.5 1.0
500 to 749 miles 16.9 2.1 21.0 1.0 21.5 2.6
750 to 999 miles 32.8 1.3 32.2 1.4 31.5 2.2
1,000 to 1,499 miles 23.2 0.6 22.4 0.5 23.1 2.1
1,500 to 1,999 miles 26.0 0.2 34.9 0.2 34.9 1.2
2,000 miles or more 23.5 0.5 23.0 0.5 22.9 2.7

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 9.1 20.9 13.0
Less than 50 miles 9.2 4.7 26.6 5.2 26.4 4.2
50 to 99 miles 19.9 2.6 10.3 2.0 10.5 2.0
100 to 249 miles 33.6 4.8 22.2 3.3 22.3 4.6
250 to 499 miles 30.5 1.3 32.0 1.1 32.4 3.5
500 to 749 miles 33.1 0.1 S S S S
750 to 999 miles 46.2 48.6 0.2 48.0 1.6
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 49.3 0.1 S S S S
2,000 miles or more 30.0 0.2 40.0 0.2 40.0 4.4

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 28.1 37.2
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles 34.7 5.7 33.8 6.8 36.5 4.6
250 to 499 miles S S 44.1 5.7 47.3 6.4
500 to 749 miles S S S S S S
750 to 999 miles S S 44.8 2.7 45.2 7.7
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 46.9 7.2 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 44.1 S S 49.0
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles 44.7 2.8 S S 49.0 0.4
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 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

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 48.5
Less than 50 miles
50 to 99 miles
100 to 249 miles S S S S 48.5
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 37.9 48.3 S S
Less than 50 miles
50 to 99 miles S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles 25.5 6.0 S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S 46.0 2.1 49.4 2.9
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 46.0 8.5 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 48.6 48.5 S S
Less than 50 miles S S S S S S
50 to 99 miles 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 24.1 28.4 44.2
Less than 50 miles 18.9 4.0 S S 31.8 4.3
50 to 99 miles 27.0 3.0 49.0 5.4 47.5 3.2
100 to 249 miles 26.9 3.7 35.2 10.1 34.8 8.2
250 to 499 miles 28.5 1.6 43.9 1.3 48.3 0.9
500 to 749 miles 42.0 3.5 S S S S
750 to 999 miles 40.4 2.5 S S S S
1,000 to 1,499 miles 45.7 1.9 S S S S
1,500 to 1,999 miles 42.4 0.3 46.4 0.6 S S
2,000 miles or more 35.8 5.2 46.1 4.4 46.4 7.6

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 25.2 31.3 25.7
Less than 50 miles 20.4 2.4 35.4 3.7 34.6 0.2
50 to 99 miles 27.0 3.1 49.0 4.3 47.5 2.6
100 to 249 miles 26.9 2.1 35.2 7.4 34.8 5.9
250 to 499 miles 28.7 1.8 25.0 1.9 25.4 1.3
500 to 749 miles 22.4 1.4 17.3 2.1 17.1 2.5
750 to 999 miles 47.3 2.2 37.1 2.1 36.7 5.3
1,000 to 1,499 miles 31.4 1.0 38.4 1.2 37.2 2.4
1,500 to 1,999 miles 42.4 0.3 46.4 0.5 S S
2,000 miles or more S S 32.3 1.1 32.2 4.4

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
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 S S S S S S
1,500 to 1,999 miles
2,000 miles or more S S 49.7 2.7 49.6 2.4

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
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 31.0 S S S S
Less than 50 miles 28.1 10.5 S S S S
50 to 99 miles 48.0 2.9 44.9 7.1 S S
100 to 249 miles 42.2 4.7 38.3 3.2 35.1 10.3
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.