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 13.4 19.1
Less than 50 miles 19.8 2.8 20.0 6.1 26.0 1.7
50 to 99 miles 14.6 0.4 16.7 0.5 18.4 0.4
100 to 249 miles 15.3 1.2 23.8 1.5 27.0 1.2
250 to 499 miles 8.5 1.4 16.7 3.4 18.0 3.7
500 to 749 miles 20.9 1.8 15.7 2.3 17.9 2.7
750 to 999 miles 12.9 0.5 27.4 0.5 27.9 0.9
1,000 to 1,499 miles 27.1 1.1 47.1 2.0 49.1 4.5
1,500 to 1,999 miles 8.6 0.8 20.1 0.4 19.6 1.4
2,000 miles or more 20.6 0.5 29.1 30.0 0.3

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 16.5 14.1 19.8
Less than 50 miles 20.0 2.5 19.6 4.8 26.2 1.5
50 to 99 miles 14.7 0.5 16.8 0.7 18.3 0.4
100 to 249 miles 17.0 1.5 23.7 1.4 27.0 1.2
250 to 499 miles 10.9 1.7 17.1 3.0 18.1 3.7
500 to 749 miles 23.6 1.8 15.0 1.7 17.2 2.4
750 to 999 miles 16.8 0.4 28.1 0.5 28.9 0.9
1,000 to 1,499 miles 36.3 1.5 48.7 2.0 S S
1,500 to 1,999 miles 8.1 0.6 22.5 0.4 21.9 1.5
2,000 miles or more 33.8 0.5 34.9 36.8 0.4

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 18.1 17.5 13.1
Less than 50 miles 23.0 2.5 22.1 4.8 26.6 1.9
50 to 99 miles 13.3 0.5 14.4 0.7 18.2 0.2
100 to 249 miles 16.9 1.6 24.1 1.1 26.3 1.5
250 to 499 miles 11.2 1.7 19.7 2.1 19.0 2.9
500 to 749 miles 25.5 1.9 15.7 0.9 15.3 2.0
750 to 999 miles 19.5 0.4 32.1 0.7 31.9 1.5
1,000 to 1,499 miles 37.2 0.9 27.3 0.9 27.8 2.8
1,500 to 1,999 miles 12.3 0.8 25.2 0.8 24.8 3.1
2,000 miles or more 44.6 0.6 35.0 37.0 0.5

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 29.1 17.9 13.5
Less than 50 miles S S 26.5 7.4 30.7 2.2
50 to 99 miles 21.8 0.3 23.0 1.0 27.8 0.5
100 to 249 miles 26.9 1.6 29.7 1.5 28.0 1.3
250 to 499 miles 15.6 1.8 32.2 2.8 27.8 3.7
500 to 749 miles 29.3 2.9 6.9 3.0 7.2 3.7
750 to 999 miles 20.0 0.7 31.6 0.9 31.4 1.7
1,000 to 1,499 miles 38.4 1.1 37.6 1.8 38.0 3.6
1,500 to 1,999 miles 12.7 1.4 26.7 1.5 26.4 3.1
2,000 miles or more 44.6 1.3 35.0 37.0 0.7

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 10.5 20.9 24.3
Less than 50 miles 12.5 2.8 22.0 2.9 30.0 1.7
50 to 99 miles 20.0 1.0 15.4 1.5 15.0 1.4
100 to 249 miles 16.1 1.7 23.3 1.2 26.9 3.3
250 to 499 miles 20.4 2.6 26.0 2.8 27.8 5.2
500 to 749 miles 28.9 1.7 34.2 1.5 34.5 4.9
750 to 999 miles 29.0 0.1 46.3 0.5 46.1 2.4
1,000 to 1,499 miles 49.0 0.2 S S S S
1,500 to 1,999 miles S S S S S S
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 29.6 25.0 32.1
Less than 50 miles S S S S S S
50 to 99 miles S S 23.0 8.2 23.4 4.1
100 to 249 miles 37.8 2.3 S S S S
250 to 499 miles 43.9 7.7 30.2 6.9 29.8 6.9
500 to 749 miles 21.4 8.5 25.3 4.0 27.2 5.4
750 to 999 miles S S 29.2 1.6 30.6 2.9
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

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

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
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

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 24.7 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 45.0 1.7
500 to 749 miles 44.1 7.5 S S S S
750 to 999 miles 28.2 4.2 S S S S
1,000 to 1,499 miles S S S S S S
1,500 to 1,999 miles 24.9 5.2 17.6 11.4 18.3 12.9
2,000 miles or more 27.9 3.3 26.9 3.3 30.3 4.6

Pipeline

Distance Shipped Value Tons Ton-miles
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All distances 19.9 21.0 S S
Less than 50 miles 20.8 14.2 24.3 13.0 S S
50 to 99 miles S S 48.5 10.2 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
750 to 999 miles 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 10.6 39.7 43.6
Less than 50 miles 28.7 2.1 39.1 1.7 S S
50 to 99 miles 32.8 0.7 S S S S
100 to 249 miles 29.6 1.5 S S S S
250 to 499 miles 11.4 0.9 S S S S
500 to 749 miles 15.5 2.5 S S S S
750 to 999 miles 16.6 0.7 S S S S
1,000 to 1,499 miles 15.5 1.6 39.7 3.3 40.6 4.0
1,500 to 1,999 miles 18.4 2.3 27.2 4.7 27.3 6.5
2,000 miles or more 22.9 1.0 25.3 2.4 26.8 5.2

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 11.0 13.1 16.9
Less than 50 miles 29.5 2.2 30.7 2.5 25.5
50 to 99 miles 32.8 0.7 25.8 0.9 27.1 0.1
100 to 249 miles 30.1 1.4 27.9 1.7 30.5 0.6
250 to 499 miles 11.4 1.0 20.3 2.3 22.0 1.0
500 to 749 miles 16.0 2.5 14.8 2.9 15.0 3.0
750 to 999 miles 16.2 0.7 36.3 1.5 36.2 1.4
1,000 to 1,499 miles 15.5 1.5 20.3 1.8 19.8 2.4
1,500 to 1,999 miles 18.8 2.3 27.9 3.5 27.7 4.7
2,000 miles or more 23.8 1.0 28.1 0.6 27.4 1.2

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 40.6 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 S S 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 47.7 9.0 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

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 40.1 45.9 46.0
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 40.1 45.9 46.0

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 26.3 36.3 33.7
Less than 50 miles 38.3 11.4 42.3 15.6 41.6 12.2
50 to 99 miles S S 42.1 2.3 S S
100 to 249 miles S S S S S S
250 to 499 miles 25.2 2.3 S S S S
500 to 749 miles 43.5 3.3 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 49.7 5.0
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.