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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 8.7 – 15.0 – 18.0 –
Less than 50 miles 10.4 1.9 17.3 3.9 20.1 0.7
50 to 99 miles 10.9 0.4 17.3 0.9 17.0 0.3
100 to 249 miles 13.2 0.4 29.7 2.7 30.1 3.2
250 to 499 miles 11.4 0.9 33.8 3.0 35.9 4.7
500 to 749 miles 12.3 1.2 30.9 1.1 27.9 2.1
750 to 999 miles 17.6 1.5 24.5 1.3 24.3 3.5
1,000 to 1,499 miles 9.6 0.9 23.4 3.0 23.9 5.7
1,500 to 1,999 miles 19.0 1.0 26.6 0.1 26.4 0.6
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 10.2 – 14.6 – 15.9 –
Less than 50 miles 10.4 2.3 17.5 3.9 19.8 0.7
50 to 99 miles 10.9 0.4 17.0 0.9 16.4 0.3
100 to 249 miles 13.2 0.5 30.4 2.7 31.7 3.3
250 to 499 miles 13.3 1.3 34.1 3.2 36.2 5.1
500 to 749 miles 15.0 1.3 31.3 1.2 28.3 2.2
750 to 999 miles 24.5 1.9 25.6 1.3 25.3 3.6
1,000 to 1,499 miles 15.3 1.1 19.6 2.5 20.4 5.4
1,500 to 1,999 miles 31.8 1.5 28.9 0.1 28.7 0.5
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 8.7 – 19.0 – 26.3 –
Less than 50 miles 10.4 2.0 18.5 3.5 21.0 2.1
50 to 99 miles 12.3 0.6 16.2 1.0 15.4 0.6
100 to 249 miles 15.0 0.8 45.3 3.3 S S
250 to 499 miles 13.9 1.5 27.3 1.5 28.2 3.4
500 to 749 miles 18.1 1.6 S S S S
750 to 999 miles 13.8 1.3 30.3 0.9 30.0 3.0
1,000 to 1,499 miles 17.8 1.2 42.9 0.4 42.3 2.3
1,500 to 1,999 miles 18.4 0.4 23.6 0.1 23.5 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 14.2 – 17.4 – 34.3 –
Less than 50 miles 25.9 2.6 16.7 6.6 14.6 1.6
50 to 99 miles 18.5 0.5 21.0 1.0 20.5 0.6
100 to 249 miles 31.4 1.2 28.7 2.6 30.4 2.9
250 to 499 miles 22.1 2.9 28.6 1.7 29.4 1.9
500 to 749 miles 17.4 2.6 S S S S
750 to 999 miles 13.9 2.4 34.4 1.9 33.9 2.6
1,000 to 1,499 miles 19.3 1.7 40.9 0.7 40.0 2.0
1,500 to 1,999 miles 19.0 0.5 24.6 0.2 24.6 1.5
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 7.9 – 26.1 – 33.3 –
Less than 50 miles 9.2 2.1 25.1 4.6 27.9 4.8
50 to 99 miles 12.5 1.3 16.5 1.4 15.1 2.0
100 to 249 miles 12.8 1.1 S S S S
250 to 499 miles 21.2 1.6 42.7 2.3 45.3 6.5
500 to 749 miles 35.1 0.7 34.2 0.3 33.7 3.0
750 to 999 miles 38.3 1.0 48.8 0.2 49.5 3.3
1,000 to 1,499 miles 23.6 0.6 S S S S
1,500 to 1,999 miles 33.2 0.2 35.3 – 35.6 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 19.5 – 15.3 – 16.7 –
Less than 50 miles 35.8 2.3 47.6 2.9 48.6 0.2
50 to 99 miles S S S S S S
100 to 249 miles 24.7 6.9 25.0 5.6 22.8 2.4
250 to 499 miles 23.5 2.2 39.1 7.7 40.2 6.3
500 to 749 miles 38.6 5.7 15.7 2.1 14.3 3.0
750 to 999 miles 42.4 3.5 27.1 2.1 27.5 4.7
1,000 to 1,499 miles 26.3 2.7 22.5 6.8 22.9 8.0
1,500 to 1,999 miles S S S S 48.7 0.7
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 – – – – – –
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 42.9 – 38.9 – 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 42.1 0.7 43.5 1.8 42.8 1.0
500 to 749 miles 23.4 4.5 S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles 27.5 2.4 25.4 3.2 25.7 4.2
1,500 to 1,999 miles S S S S S S
2,000 miles or more 41.4 – 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 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 11.3 – 33.6 – 38.0 –
Less than 50 miles 21.0 2.3 S S S S
50 to 99 miles 19.7 0.8 31.4 0.5 34.4 –
100 to 249 miles 20.5 1.5 S S S S
250 to 499 miles 14.0 0.9 40.7 2.1 42.7 1.1
500 to 749 miles 21.4 1.2 S S S S
750 to 999 miles 14.5 2.5 S S S S
1,000 to 1,499 miles 12.5 1.8 43.9 14.8 44.1 14.8
1,500 to 1,999 miles 10.2 0.8 18.7 2.8 19.3 5.0
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 11.6 – 19.4 – 16.1 –
Less than 50 miles 20.7 2.2 31.1 2.3 32.8 –
50 to 99 miles 19.7 0.8 31.4 0.7 34.4 0.1
100 to 249 miles 20.7 1.6 45.2 2.5 S S
250 to 499 miles 14.0 0.9 31.1 1.1 31.3 0.7
500 to 749 miles 21.6 1.2 20.8 0.9 20.4 1.1
750 to 999 miles 14.9 2.3 16.6 3.6 16.4 3.5
1,000 to 1,499 miles 12.7 1.7 19.9 3.7 19.6 4.2
1,500 to 1,999 miles 10.2 0.9 18.7 1.9 19.3 2.8
2,000 miles or more S S 36.9 0.3 23.1 0.4

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 37.1 – S S 44.5 –
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 S S S S S S
750 to 999 miles S S S S S S
1,000 to 1,499 miles 36.6 13.7 32.9 15.0 33.3 14.4
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 – – – – – –
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

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 44.8 – 44.8 – 45.0 –
Less than 50 miles – – – – – –
50 to 99 miles – – – – – –
100 to 249 miles – – – – – –
250 to 499 miles – – – – – –
500 to 749 miles – – – – – –
750 to 999 miles S S S S S S
1,000 to 1,499 miles 46.0 2.1 46.0 2.2 46.1 2.0
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 16.3 – 40.2 – 38.5 –
Less than 50 miles 22.0 7.2 42.4 7.6 46.6 5.5
50 to 99 miles 20.4 2.6 S S S S
100 to 249 miles 40.0 1.3 S S S S
250 to 499 miles 41.5 6.8 S S S S
500 to 749 miles 35.5 1.2 S S S S
750 to 999 miles 30.4 2.4 S S S S
1,000 to 1,499 miles 38.9 1.0 38.4 1.2 39.0 3.4
1,500 to 1,999 miles S S 38.2 2.0 40.6 6.8
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.