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 11.9 34.5 23.4
Less than 50 miles 17.1 3.1 S S S S
50 to 99 miles 29.8 3.0 29.4 2.9 23.5 2.5
100 to 249 miles 35.4 1.4 44.4 3.5 37.4 5.2
250 to 499 miles 28.3 5.3 37.1 8.7 31.6 12.2
500 to 749 miles 30.8 3.5 S S S S
750 to 999 miles 38.6 1.6 S S S S
1,000 to 1,499 miles 27.5 1.1 38.0 0.5 39.4 5.2
1,500 to 1,999 miles 38.8 1.2 S S S S
2,000 miles or more 34.4 0.4 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 14.4 35.3 27.2
Less than 50 miles 18.3 4.0 S S S S
50 to 99 miles 31.7 3.2 29.6 3.0 23.7 2.6
100 to 249 miles 37.7 1.5 46.0 3.6 45.6 5.5
250 to 499 miles 31.4 6.3 39.5 9.1 38.1 12.9
500 to 749 miles 36.2 3.3 S S S S
750 to 999 miles 43.9 0.8 S S S S
1,000 to 1,499 miles 30.5 1.2 43.7 0.2 44.6 7.6
1,500 to 1,999 miles S S S S S S
2,000 miles or more 49.2 0.5 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 18.6 27.8 31.5
Less than 50 miles 19.6 3.8 29.2 5.5 32.9 7.0
50 to 99 miles 43.2 1.4 S S S S
100 to 249 miles 36.7 1.9 46.1 4.7 45.7 7.3
250 to 499 miles 26.9 0.8 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 45.1 S S S S
2,000 miles or more 40.9 47.4 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 24.7 21.8 36.0
Less than 50 miles 34.4 8.3 23.5 9.3 33.5 8.8
50 to 99 miles S S S S S S
100 to 249 miles 40.3 4.0 49.4 7.5 49.4 8.2
250 to 499 miles 36.1 1.7 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 46.1 S S S S
2,000 miles or more 35.8 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 17.1 37.8 27.9
Less than 50 miles 19.0 2.7 39.4 3.1 42.5 9.0
50 to 99 miles 28.9 1.1 S S S S
100 to 249 miles 24.7 0.6 33.8 2.0 32.1 7.1
250 to 499 miles 33.9 0.7 33.9 0.4 33.9 2.1
500 to 749 miles S S 45.2 0.2 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 49.5 49.7 1.3

Rail

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 40.0 S S 36.6
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 41.0 10.5 41.6 13.9 41.6 11.2
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

Water

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 22.8 48.7 S S
Less than 50 miles 40.0 5.1 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 24.7 7.2 S S S S
750 to 999 miles 45.6 8.4 S S S S
1,000 to 1,499 miles 46.8 11.6 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

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 45.1 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 38.0 13.8 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 23.4 S S S S
Less than 50 miles 47.8 6.1 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 33.9 6.3 37.7 3.1 36.5 4.8
750 to 999 miles S S S S S S
1,000 to 1,499 miles 46.8 12.0 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

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 25.6 19.5 21.0
Less than 50 miles
50 to 99 miles S S S S S S
100 to 249 miles 49.8 2.3 32.2 1.4 30.8 0.6
250 to 499 miles 27.4 7.0 34.4 7.7 31.9 5.7
500 to 749 miles 30.8 5.5 27.7 6.4 29.3 4.9
750 to 999 miles S S S S S S
1,000 to 1,499 miles 44.5 5.3 48.8 6.0 45.3 9.4
1,500 to 1,999 miles 31.0 1.5 36.8 1.1 33.4 3.0
2,000 miles or more S S 38.4 1.5 37.7 5.0

Pipeline

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 44.4 43.0 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
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 26.0 S S S S
Less than 50 miles 29.4 3.4 39.7 1.1 28.9
50 to 99 miles 18.6 1.4 34.8 2.4 32.8 0.3
100 to 249 miles 33.3 1.8 S S S S
250 to 499 miles 47.0 3.4 S S S S
500 to 749 miles 41.6 8.0 S S 30.2 8.1
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 33.9 1.7 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 17.4 19.4 38.4
Less than 50 miles 29.3 4.7 41.1 7.0 31.5 0.5
50 to 99 miles 21.2 2.1 38.5 3.9 39.5 1.8
100 to 249 miles 43.4 4.7 S S S S
250 to 499 miles 22.3 2.9 43.6 7.7 S S
500 to 749 miles 37.8 4.5 32.0 2.3 31.7 8.4
750 to 999 miles 36.2 0.7 32.2 0.8 34.1 2.3
1,000 to 1,499 miles 36.7 0.3 S S 47.8 1.4
1,500 to 1,999 miles 42.9 1.6 43.7 0.4 S S
2,000 miles or more 35.3 2.2 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 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 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

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 32.2 S S 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 S S S S S S
500 to 749 miles 46.6 10.9 S S 30.6 8.8
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

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 S S S S S S
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 21.6 S S 28.2
Less than 50 miles 31.5 10.6 S S S S
50 to 99 miles S S S S 46.3 3.5
100 to 249 miles S S S S S S
250 to 499 miles 33.9 8.1 44.3 7.3 S S
500 to 749 miles S S 29.9 1.7 27.3 4.2
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.