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 14.5 14.2 38.1
Less than 50 miles 10.0 3.5 16.6 3.9 23.8 4.4
50 to 99 miles 7.8 0.7 17.7 0.6 17.6 1.6
100 to 249 miles 8.4 1.7 14.5 0.5 12.8 1.9
250 to 499 miles 18.5 1.0 24.8 0.4 29.1 1.0
500 to 749 miles 40.9 1.5 38.8 0.5 35.0 1.4
750 to 999 miles 39.4 1.8 S S S S
1,000 to 1,499 miles 15.0 0.6 26.0 0.4 25.9 3.2
1,500 to 1,999 miles 17.2 0.8 20.5 0.1 21.3 1.9
2,000 miles or more 43.0 1.9 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 18.2 14.5 36.8
Less than 50 miles 12.7 4.5 17.0 4.1 24.0 5.0
50 to 99 miles 9.7 0.9 17.9 0.7 17.9 1.9
100 to 249 miles 7.0 1.7 15.1 0.5 13.3 2.2
250 to 499 miles 30.7 0.8 27.7 0.5 32.4 1.1
500 to 749 miles S S S S 49.4 0.7
750 to 999 miles S S S S S S
1,000 to 1,499 miles 25.6 0.8 27.6 0.4 27.3 2.7
1,500 to 1,999 miles 18.3 0.6 24.4 0.1 25.2 2.1
2,000 miles or more S S 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 18.8 14.5 37.3
Less than 50 miles 12.7 4.7 17.0 4.1 24.0 5.1
50 to 99 miles 9.8 1.0 17.9 0.7 17.9 1.9
100 to 249 miles 7.9 1.7 15.2 0.5 13.4 2.3
250 to 499 miles 32.5 0.6 27.7 0.5 32.5 1.1
500 to 749 miles S S S S 49.6 0.7
750 to 999 miles S S S S S S
1,000 to 1,499 miles 26.0 0.8 27.6 0.4 27.3 2.7
1,500 to 1,999 miles 19.5 0.6 24.9 0.1 25.7 2.2
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 31.5 19.2 48.1
Less than 50 miles 16.3 4.2 23.7 5.7 26.4 2.5
50 to 99 miles 13.2 1.2 30.9 1.4 30.0 1.6
100 to 249 miles 14.0 3.5 25.0 2.1 21.2 3.1
250 to 499 miles 36.3 1.0 29.6 1.3 35.3 1.4
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 28.4 1.4 31.3 0.7 31.4 3.2
1,500 to 1,999 miles 19.2 1.0 26.0 0.4 26.7 3.3
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 11.5 19.0 22.9
Less than 50 miles 13.0 1.8 19.3 2.0 28.6 4.9
50 to 99 miles 12.8 1.0 25.3 1.7 25.5 2.7
100 to 249 miles 16.4 1.4 20.6 0.3 19.7 1.8
250 to 499 miles 33.5 0.5 48.5 0.1 42.0 1.0
500 to 749 miles 28.7 0.2 21.8 23.4 0.3
750 to 999 miles 37.6 1.2 S S S S
1,000 to 1,499 miles 48.6 0.3 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

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 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

Water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 49.0 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 S S S S S S
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

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
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
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 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 S S 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 19.1 36.7 S S
Less than 50 miles
50 to 99 miles S S S S S S
100 to 249 miles 48.2 7.9 S S S S
250 to 499 miles S S 42.8 1.0 49.1 0.6
500 to 749 miles S S 46.4 5.1 47.8 4.6
750 to 999 miles S S S S S S
1,000 to 1,499 miles 45.8 2.1 S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more 35.4 6.9 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 13.8 24.6 32.4
Less than 50 miles 16.3 1.6 27.9 4.3 24.5 0.2
50 to 99 miles 19.0 0.9 41.6 1.1 44.8 0.2
100 to 249 miles 19.0 2.3 23.4 1.7 21.4 0.5
250 to 499 miles 18.3 2.2 28.4 1.8 27.8 1.3
500 to 749 miles 21.4 1.8 45.2 3.1 46.6 2.0
750 to 999 miles 33.7 2.2 27.8 1.0 27.5 1.5
1,000 to 1,499 miles 19.2 1.7 29.5 1.2 29.8 2.0
1,500 to 1,999 miles 26.4 1.1 28.5 1.4 28.4 2.5
2,000 miles or more 15.2 2.8 46.1 2.9 47.4 4.7

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 13.8 24.7 32.5
Less than 50 miles 16.3 1.6 28.9 4.3 25.4 0.2
50 to 99 miles 19.0 0.9 41.6 1.1 44.8 0.2
100 to 249 miles 19.0 2.3 23.4 1.8 21.4 0.5
250 to 499 miles 18.3 2.2 28.4 1.8 27.8 1.3
500 to 749 miles 21.4 1.8 45.2 3.1 46.6 2.0
750 to 999 miles 33.7 2.2 27.8 1.0 27.5 1.5
1,000 to 1,499 miles 19.2 1.7 29.5 1.2 29.8 2.0
1,500 to 1,999 miles 26.4 1.1 28.5 1.4 28.4 2.5
2,000 miles or more 15.2 2.9 46.5 2.9 47.8 4.8

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 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

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 S S S S S S
50 to 99 miles S S S S S S
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 38.7 S S S S
Less than 50 miles 30.8 8.7 S S S S
50 to 99 miles 47.8 1.6 S S S S
100 to 249 miles 40.7 2.8 S S S S
250 to 499 miles S S S S S S
500 to 749 miles 48.2 3.1 S S S S
750 to 999 miles 48.1 1.8 S S S S
1,000 to 1,499 miles 39.0 1.6 S S S S
1,500 to 1,999 miles S S 41.3 4.7 40.5 10.2
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.