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 5.2 9.1 14.0
Less than 50 miles 7.0 1.7 14.2 3.8 16.6 0.4
50 to 99 miles 5.7 0.7 30.5 2.8 36.2 1.9
100 to 249 miles 6.6 1.0 13.4 1.7 13.2 1.4
250 to 499 miles 9.6 0.7 11.6 1.4 13.5 2.4
500 to 749 miles 8.6 0.6 12.5 0.7 12.1 2.1
750 to 999 miles 10.4 0.8 33.1 2.8 38.1 5.3
1,000 to 1,499 miles 10.8 0.5 15.8 0.4 16.2 1.5
1,500 to 1,999 miles 13.7 0.5 8.4 0.2 8.5 1.4
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 3.9 9.1 15.1
Less than 50 miles 6.8 1.6 14.2 4.0 15.0 0.4
50 to 99 miles 5.9 0.8 30.9 2.9 37.3 2.0
100 to 249 miles 6.8 1.0 14.1 1.7 13.6 1.7
250 to 499 miles 8.1 0.8 11.9 1.5 13.7 2.6
500 to 749 miles 7.9 0.6 13.0 0.6 12.6 2.0
750 to 999 miles 9.3 0.7 34.9 3.0 39.8 5.6
1,000 to 1,499 miles 10.5 0.5 14.7 0.3 15.1 1.5
1,500 to 1,999 miles 12.0 0.4 9.7 0.2 10.0 1.3
2,000 miles or more 44.8 42.4 45.8

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 4.2 11.3 7.8
Less than 50 miles 7.0 1.7 15.7 4.4 17.2 0.6
50 to 99 miles 5.8 0.8 25.2 1.7 24.0 0.9
100 to 249 miles 6.9 0.9 17.2 1.8 17.6 1.7
250 to 499 miles 8.8 0.8 15.0 1.5 14.0 2.1
500 to 749 miles 8.4 0.6 14.4 0.6 13.9 1.7
750 to 999 miles 10.0 0.6 13.9 0.7 13.5 2.0
1,000 to 1,499 miles 11.4 0.5 18.3 0.4 18.1 1.7
1,500 to 1,999 miles 13.4 0.4 15.7 0.2 15.7 1.5
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 6.7 17.8 7.9
Less than 50 miles 9.1 1.0 33.9 5.5 21.5 0.5
50 to 99 miles 9.0 0.7 33.4 1.8 28.0 0.9
100 to 249 miles 8.0 1.0 9.2 2.1 8.3 1.0
250 to 499 miles 11.3 1.2 13.9 2.3 13.6 2.0
500 to 749 miles 8.2 0.6 13.9 0.9 13.2 1.6
750 to 999 miles 12.9 0.8 16.9 1.1 16.4 2.3
1,000 to 1,499 miles 12.5 0.9 21.0 0.6 20.7 1.8
1,500 to 1,999 miles 15.1 0.8 14.1 0.4 14.1 1.8
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 4.8 14.1 19.7
Less than 50 miles 7.0 2.4 16.1 5.0 18.9 1.4
50 to 99 miles 9.1 1.5 22.6 2.2 24.2 1.3
100 to 249 miles 9.2 1.3 27.3 2.1 29.5 3.3
250 to 499 miles 9.1 0.6 35.1 1.8 33.3 4.0
500 to 749 miles 18.2 0.7 27.4 0.3 28.3 2.1
750 to 999 miles 17.3 0.5 20.0 0.2 20.1 2.0
1,000 to 1,499 miles 30.7 0.4 26.3 0.1 25.7 0.9
1,500 to 1,999 miles 22.8 0.1 42.0 42.7 1.4
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 26.5 25.0 15.5
Less than 50 miles 29.6 1.8 S S 44.5 0.2
50 to 99 miles S S S S S S
100 to 249 miles 42.2 1.5 30.6 4.8 32.3 2.1
250 to 499 miles 25.9 4.7 29.7 6.1 30.2 6.0
500 to 749 miles 19.2 6.3 23.9 3.4 24.7 5.4
750 to 999 miles 31.9 7.4 28.1 8.6 30.4 8.5
1,000 to 1,499 miles 39.5 2.5 38.4 1.2 39.0 1.7
1,500 to 1,999 miles 50.0 5.3 30.3 1.1 30.2 3.1
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 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

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
250 to 499 miles
500 to 749 miles
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 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

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
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

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 15.7 41.6 37.8
Less than 50 miles S S S S S S
50 to 99 miles S S 29.3 0.7 29.4 0.4
100 to 249 miles 35.9 3.2 34.0 5.5 34.9 4.0
250 to 499 miles 27.2 7.8 S S S S
500 to 749 miles 29.2 4.6 26.9 5.8 26.4 5.7
750 to 999 miles 34.5 2.5 49.2 2.5 46.8 2.4
1,000 to 1,499 miles 28.0 1.9 42.9 2.9 44.2 3.3
1,500 to 1,999 miles 23.4 2.3 29.8 6.5 29.6 8.0
2,000 miles or more 45.3 0.1 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 S S S S S S
Less than 50 miles 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 18.6 13.9 16.9
Less than 50 miles 25.5 1.0 44.1 2.1 S S
50 to 99 miles 18.2 0.7 19.0 1.0 22.5 0.1
100 to 249 miles 17.9 1.5 18.3 0.7 17.9 0.2
250 to 499 miles 28.2 1.5 34.9 2.3 34.6 1.0
500 to 749 miles 17.2 1.4 25.1 6.1 25.3 4.7
750 to 999 miles 21.6 2.2 22.7 3.1 22.7 3.1
1,000 to 1,499 miles 23.9 0.7 29.9 1.2 33.1 1.9
1,500 to 1,999 miles 23.6 0.8 23.9 3.8 24.5 5.1
2,000 miles or more S S S S 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 18.3 16.8 20.0
Less than 50 miles 25.9 0.9 14.4 1.6 20.3
50 to 99 miles 19.1 0.5 20.1 1.0 25.7 0.2
100 to 249 miles 18.9 1.8 20.9 2.2 20.0 0.9
250 to 499 miles 21.4 1.2 21.8 1.6 22.8 0.9
500 to 749 miles 18.0 0.9 17.7 0.8 17.7 1.0
750 to 999 miles 26.3 2.6 23.0 2.5 22.3 1.9
1,000 to 1,499 miles 22.4 0.7 26.6 1.2 27.3 1.9
1,500 to 1,999 miles 19.6 1.1 26.7 1.3 26.7 2.5
2,000 miles or more 33.0 39.6 0.2 41.6 0.8

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 S S 24.2 25.5
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 S S S S S S
500 to 749 miles S S 33.0 9.2 32.9 7.3
750 to 999 miles S S 36.9 5.0 36.2 4.1
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles S S 29.0 8.6 29.1 8.8
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 46.9 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
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 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

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 23.4 36.9 30.2
Less than 50 miles 30.2 6.1 S S S S
50 to 99 miles 38.9 1.9 37.4 6.7 36.5 3.7
100 to 249 miles 43.7 2.8 48.7 4.4 S S
250 to 499 miles S S 43.6 2.3 45.9 2.2
500 to 749 miles 31.4 3.1 S S S S
750 to 999 miles S S 39.2 5.5 38.6 6.6
1,000 to 1,499 miles 47.4 2.4 S S S S
1,500 to 1,999 miles 48.4 4.7 29.4 1.6 29.2 5.1
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.