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 4.5 10.2 9.8
Less than 50 miles 12.3 3.1 12.8 2.4 17.6 0.4
50 to 99 miles 8.9 0.5 28.3 1.6 27.0 0.9
100 to 249 miles 10.5 1.7 15.2 1.9 14.1 2.3
250 to 499 miles 8.3 1.5 13.4 1.5 14.6 1.7
500 to 749 miles 24.6 3.3 17.8 1.8 20.2 4.4
750 to 999 miles 10.8 0.7 16.1 0.3 17.5 0.9
1,000 to 1,499 miles 12.5 0.7 10.7 0.3 9.9 1.4
1,500 to 1,999 miles 10.8 0.4 21.3 0.2 21.7 1.4
2,000 miles or more 30.3 0.1 27.1 29.1 0.1

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 5.4 10.7 10.0
Less than 50 miles 12.6 3.7 13.2 2.4 17.9 0.5
50 to 99 miles 8.8 0.5 28.7 1.6 27.4 1.0
100 to 249 miles 11.3 1.8 16.2 1.9 15.1 2.5
250 to 499 miles 10.2 1.8 13.4 1.5 14.6 1.6
500 to 749 miles 28.5 3.7 16.6 1.7 18.6 4.2
750 to 999 miles 13.6 0.8 16.2 0.3 17.7 0.9
1,000 to 1,499 miles 16.8 0.8 8.3 0.3 8.8 1.2
1,500 to 1,999 miles 13.6 0.4 27.4 0.2 28.1 1.3
2,000 miles or more 47.4 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 4.3 13.4 14.5
Less than 50 miles 12.7 3.8 13.3 3.8 14.8 0.8
50 to 99 miles 8.8 0.8 29.0 1.6 28.0 1.1
100 to 249 miles 11.1 1.6 23.7 2.4 25.4 2.2
250 to 499 miles 10.8 1.8 18.2 1.9 20.2 2.5
500 to 749 miles 9.7 0.7 18.3 0.7 19.0 1.7
750 to 999 miles 13.2 0.7 11.0 0.3 11.4 1.6
1,000 to 1,499 miles 14.1 0.5 14.8 0.3 14.4 1.7
1,500 to 1,999 miles 16.8 0.3 31.3 0.2 32.6 1.2
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 6.9 14.2 15.6
Less than 50 miles 6.0 1.0 13.6 4.5 23.0 0.6
50 to 99 miles 13.9 0.6 21.2 1.0 23.7 0.3
100 to 249 miles 10.9 1.8 30.7 3.7 31.8 2.9
250 to 499 miles 11.3 1.7 22.9 2.3 24.4 2.9
500 to 749 miles 9.5 0.6 12.3 0.9 12.5 1.6
750 to 999 miles 11.1 0.9 10.1 0.5 10.6 1.9
1,000 to 1,499 miles 12.4 0.6 14.2 0.4 13.6 1.9
1,500 to 1,999 miles 17.8 0.5 35.2 0.3 36.6 1.6
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 11.4 20.1 22.8
Less than 50 miles 17.7 5.5 15.3 4.1 15.7 1.6
50 to 99 miles 16.5 1.8 38.8 2.7 37.1 2.3
100 to 249 miles 29.4 3.8 30.7 1.6 28.2 2.8
250 to 499 miles 18.8 1.8 22.4 0.6 22.7 1.7
500 to 749 miles 29.6 0.9 S S S S
750 to 999 miles 28.7 0.6 28.7 0.3 28.7 2.4
1,000 to 1,499 miles 34.1 0.4 40.0 0.3 39.1 2.6
1,500 to 1,999 miles 32.6 0.2 32.1 33.7 1.0
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 39.1 17.3 17.7
Less than 50 miles S S S S S S
50 to 99 miles S S 41.6 1.1 S S
100 to 249 miles 32.8 3.1 33.5 6.4 37.7 4.4
250 to 499 miles 24.1 5.9 23.1 5.2 22.1 3.8
500 to 749 miles S S 26.6 4.5 25.1 5.2
750 to 999 miles 34.9 4.9 34.6 2.4 35.2 3.3
1,000 to 1,499 miles 36.1 4.5 35.4 0.9 36.6 2.1
1,500 to 1,999 miles 43.3 2.7 47.6 0.4 48.1 1.7
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 33.8 S S 35.9
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles 39.9 12.4 28.0 12.4 28.0 12.5
250 to 499 miles S S 41.4 5.4 44.1 5.2
500 to 749 miles 47.0 11.7 39.1 7.9 39.3 10.0
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 33.8 S S 35.9
Less than 50 miles S S S S S S
50 to 99 miles
100 to 249 miles 39.9 12.4 28.0 12.4 28.0 12.5
250 to 499 miles S S 41.4 5.4 44.1 5.2
500 to 749 miles 47.0 11.7 39.1 7.9 39.3 10.0
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 28.7 29.3 34.9
Less than 50 miles
50 to 99 miles S S S S S S
100 to 249 miles 42.0 3.8 49.8 2.8 S S
250 to 499 miles 33.7 6.0 38.9 6.8 38.8 4.8
500 to 749 miles 32.7 6.5 40.1 5.7 46.6 6.5
750 to 999 miles 27.2 5.2 32.4 3.5 31.6 5.6
1,000 to 1,499 miles 45.6 3.0 34.6 4.1 36.9 4.6
1,500 to 1,999 miles 40.7 5.9 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 S S S S
Less than 50 miles S S S S 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 6.3 48.5 34.2
Less than 50 miles 16.6 1.2 27.1 1.6 13.9
50 to 99 miles 19.2 0.7 40.6 0.7 40.0
100 to 249 miles 18.2 2.1 S S S S
250 to 499 miles 8.7 1.1 24.7 3.0 29.3 1.2
500 to 749 miles 8.6 1.2 S S S S
750 to 999 miles 8.9 1.0 27.7 3.1 29.6 3.3
1,000 to 1,499 miles 16.9 1.5 29.1 5.4 34.2 5.8
1,500 to 1,999 miles 12.4 0.7 S S S S
2,000 miles or more 30.8 0.9 27.6 1.2 29.5 4.6

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 8.3 22.4 31.3
Less than 50 miles 17.6 1.3 34.1 3.4 16.6
50 to 99 miles 19.6 0.9 20.0 0.9 20.4 0.2
100 to 249 miles 18.9 2.4 14.9 2.5 14.4 1.2
250 to 499 miles 8.7 1.6 25.4 2.3 28.4 2.2
500 to 749 miles 11.7 1.4 23.3 2.0 24.7 1.8
750 to 999 miles 11.3 1.0 29.1 1.9 29.1 2.6
1,000 to 1,499 miles 17.7 1.5 28.2 1.5 28.4 2.4
1,500 to 1,999 miles 18.8 0.7 39.0 1.1 39.4 2.3
2,000 miles or more 46.1 0.2 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 32.2 40.3 36.9
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 S S S S S S
500 to 749 miles S S S S S S
750 to 999 miles 42.2 9.4 47.6 7.6 47.1 7.3
1,000 to 1,499 miles 36.0 8.9 S S S S
1,500 to 1,999 miles 44.3 12.2 S S S S
2,000 miles or more S S S S S S

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 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 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 48.8 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 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 S S S S S S

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 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

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 26.8 40.3 46.0
Less than 50 miles 24.8 7.2 S S S S
50 to 99 miles S S 38.9 3.1 43.4 1.1
100 to 249 miles 38.8 3.3 38.6 3.4 36.7 3.4
250 to 499 miles 40.0 3.2 S S S S
500 to 749 miles 27.0 2.9 S S S S
750 to 999 miles S S 37.9 1.2 37.1 7.1
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.