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 19.6 23.8 9.2
Less than 50 miles 36.8 7.5 38.0 6.0 30.8 0.8
50 to 99 miles 11.1 1.9 34.4 5.4 39.2 3.3
100 to 249 miles 6.5 1.8 12.7 2.0 14.1 2.0
250 to 499 miles 15.7 0.7 11.9 0.5 11.0 0.7
500 to 749 miles 16.3 1.0 12.7 0.3 12.0 0.5
750 to 999 miles 14.3 0.8 25.7 0.8 23.8 2.4
1,000 to 1,499 miles 10.7 0.6 44.9 0.3 46.2 4.1
1,500 to 1,999 miles 10.3 1.2 11.2 0.4 10.8 2.6
2,000 miles or more 10.4 1.1 14.1 0.3 14.5 2.4

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 23.2 25.9 10.8
Less than 50 miles 39.1 7.8 41.9 6.5 32.4 0.8
50 to 99 miles 12.0 2.3 34.8 5.6 39.7 4.1
100 to 249 miles 7.3 2.1 13.7 2.5 14.9 2.3
250 to 499 miles 15.6 0.8 12.6 0.5 11.8 0.7
500 to 749 miles 19.2 1.1 13.7 0.3 13.1 0.5
750 to 999 miles 16.7 1.0 28.0 0.9 26.1 2.5
1,000 to 1,499 miles 12.6 0.6 48.8 0.3 S S
1,500 to 1,999 miles 11.7 1.1 12.3 0.4 12.0 2.6
2,000 miles or more 8.1 0.7 13.7 0.3 14.2 2.1

Truck

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 36.8 8.5
Less than 50 miles 15.1 3.2 47.7 6.0 35.7 2.3
50 to 99 miles 12.9 1.2 13.8 2.9 12.7 0.9
100 to 249 miles 8.6 1.4 9.4 1.8 10.0 1.3
250 to 499 miles 17.0 0.7 10.8 0.5 12.8 0.6
500 to 749 miles 16.8 0.8 14.4 0.3 14.0 0.8
750 to 999 miles 14.0 0.6 15.9 0.5 16.0 1.8
1,000 to 1,499 miles 14.6 0.4 17.7 0.3 17.6 1.4
1,500 to 1,999 miles 15.4 1.1 18.1 0.4 18.2 2.6
2,000 miles or more 8.9 0.4 15.0 0.3 15.7 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 5.5 9.2 8.0
Less than 50 miles 11.0 2.1 21.2 4.6 14.8 0.6
50 to 99 miles 15.7 1.0 21.7 2.3 18.0 0.9
100 to 249 miles 11.1 1.5 13.0 2.3 14.4 1.8
250 to 499 miles 18.9 0.9 15.3 0.9 17.0 1.0
500 to 749 miles 9.7 0.6 15.5 0.8 15.1 1.1
750 to 999 miles 13.5 0.9 16.8 1.1 17.0 2.0
1,000 to 1,499 miles 14.0 1.0 17.7 0.6 17.9 1.7
1,500 to 1,999 miles 15.7 2.1 16.6 1.0 16.8 2.9
2,000 miles or more 9.0 1.4 17.0 0.7 17.7 2.1

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 14.3 48.9 14.8
Less than 50 miles 19.8 3.1 S S 44.3 6.7
50 to 99 miles 17.8 2.1 22.3 4.8 22.1 3.5
100 to 249 miles 10.5 1.3 17.6 1.7 17.9 3.0
250 to 499 miles 21.2 0.6 30.9 0.3 27.4 1.3
500 to 749 miles 44.0 1.3 18.2 18.6 0.6
750 to 999 miles 29.7 0.2 34.3 0.2 36.2 1.8
1,000 to 1,499 miles S S 35.5 0.1 35.5 1.5
1,500 to 1,999 miles S S S S S S
2,000 miles or more 46.2 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 17.9 25.9 25.6
Less than 50 miles 43.9 9.7 43.6 12.8 31.4 0.4
50 to 99 miles 30.9 0.2 35.4 0.6 38.6
100 to 249 miles 25.1 2.6 S S S S
250 to 499 miles 37.9 1.4 S S S S
500 to 749 miles 29.3 2.3 34.3 4.5 31.4 3.7
750 to 999 miles S S S S 47.6 4.8
1,000 to 1,499 miles 26.3 1.0 S S S S
1,500 to 1,999 miles 15.6 3.6 12.9 2.7 12.6 4.9
2,000 miles or more 20.8 2.4 20.5 2.2 21.0 3.9

Water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 40.9 S S 47.1
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 32.3 4.4 32.5 11.2 31.9 7.0
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 42.7 2.0 S S 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 S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles 32.3 14.3 32.5 14.8 31.9 14.7
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 34.9 S S 41.9
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
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 42.7 6.4 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 S S 37.3 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 23.1 2.1 S S S S
250 to 499 miles S S S S S S
500 to 749 miles 38.2 7.9 S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles 45.9 3.4 45.9 6.5 36.6 5.1
1,500 to 1,999 miles 32.8 9.0 S S S S
2,000 miles or more 33.1 8.1 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 9.0 11.7 S S
Less than 50 miles 41.5 4.0 44.8 3.5 S S
50 to 99 miles 18.4 9.6 18.0 10.1 S S
100 to 249 miles 22.5 7.2 27.6 7.9 S S
250 to 499 miles 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
1,500 to 1,999 miles S S S S 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 17.7 16.3 18.8
Less than 50 miles 26.6 3.1 35.9 2.2 28.7
50 to 99 miles 30.2 1.0 21.9 0.9 25.5
100 to 249 miles 21.6 1.7 17.9 0.8 23.5 0.2
250 to 499 miles 22.1 0.6 35.5 0.7 35.0 0.2
500 to 749 miles 27.6 0.9 37.0 1.7 42.8 1.2
750 to 999 miles 21.0 1.9 26.9 2.3 26.4 1.8
1,000 to 1,499 miles 16.0 1.0 39.7 4.3 41.6 4.9
1,500 to 1,999 miles 23.6 2.1 36.7 4.6 36.0 5.9
2,000 miles or more 20.3 3.0 31.5 5.8 31.4 7.5

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 18.3 19.7 26.6
Less than 50 miles 26.7 3.3 25.7 5.5 17.1 0.2
50 to 99 miles 30.6 1.2 28.8 1.7 31.0 0.3
100 to 249 miles 21.8 1.9 24.1 2.0 24.1 0.8
250 to 499 miles 22.1 0.7 38.8 2.0 38.3 1.2
500 to 749 miles 29.1 1.0 30.3 1.1 30.2 0.9
750 to 999 miles 21.2 2.0 33.4 1.2 33.4 1.3
1,000 to 1,499 miles 16.4 0.7 28.6 0.9 28.5 1.4
1,500 to 1,999 miles 26.5 2.3 34.1 2.0 34.5 3.6
2,000 miles or more 20.4 3.1 30.6 2.8 29.8 3.8

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 31.6 23.5 22.3
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 49.3 0.9 48.5 0.1
250 to 499 miles S S S S S S
500 to 749 miles S S 48.5 3.1 S S
750 to 999 miles 36.3 3.4 27.8 4.0 27.5 3.2
1,000 to 1,499 miles 33.0 4.3 38.4 3.8 38.9 2.9
1,500 to 1,999 miles 45.3 7.2 48.9 7.7 47.5 8.7
2,000 miles or more 21.5 5.5 35.1 5.4 35.5 7.5

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 27.1 32.9 35.9
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 S S S S S S
500 to 749 miles S S S S S S
750 to 999 miles S S 32.7 3.6 29.8 1.2
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 24.3 6.9 43.3 6.0 47.0 5.8
2,000 miles or more 46.2 7.4 47.5 10.1 48.3 10.9

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 S S S S S S
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 S S S S S S
1,500 to 1,999 miles S S S S S S
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 27.8 27.1 17.8
Less than 50 miles 31.2 9.3 39.3 15.7 37.6 8.9
50 to 99 miles 42.5 3.0 33.4 9.1 33.4 8.0
100 to 249 miles 35.3 7.1 37.3 9.5 35.4 8.0
250 to 499 miles S S S S S S
500 to 749 miles S S 43.4 0.2 43.8 1.9
750 to 999 miles 43.5 0.9 40.2 0.1 43.5 1.0
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 45.0 44.3 2.9

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.