Home » BTS Publications » Commodity Flow Survey » 2002 » Metropolitan Areas

Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002

Table B-3. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

Excel | CSV

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 16.9 – 34.6 – 24.3 –
Less than 50 miles 11.1 3.1 31.5 3.3 32.0 0.5
50 to 99 miles 15.2 1.3 36.5 1.0 35.4 0.9
100 to 249 miles 18.9 2.1 45.5 1.5 44.9 1.8
250 to 499 miles 26.6 2.2 S S 43.9 4.8
500 to 749 miles 28.3 1.2 17.0 1.1 17.6 2.2
750 to 999 miles 21.7 0.4 16.5 0.3 16.3 1.0
1,000 to 1,499 miles 37.3 0.9 33.0 1.7 32.8 5.0
1,500 to 1,999 miles 23.6 0.6 31.9 0.2 31.6 1.6
2,000 miles or more 24.1 0.7 23.3 0.3 23.5 2.2

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 19.8 – 36.2 – 27.0 –
Less than 50 miles 12.5 3.5 32.7 3.5 33.5 0.6
50 to 99 miles 15.4 1.6 36.8 1.1 35.5 1.0
100 to 249 miles 20.3 2.4 47.7 1.3 46.9 1.9
250 to 499 miles 31.2 2.4 S S 46.0 4.8
500 to 749 miles 34.5 1.4 17.7 1.2 18.4 2.4
750 to 999 miles 25.7 0.3 18.5 0.3 18.4 1.1
1,000 to 1,499 miles 44.4 0.8 39.0 1.6 39.4 4.2
1,500 to 1,999 miles 31.9 0.5 32.1 0.2 31.7 1.6
2,000 miles or more 34.4 0.6 27.4 0.2 27.0 1.8

Truck

Distance Shipped Value Tons Ton-miles
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All distances 20.9 – 27.9 – 28.3 –
Less than 50 miles 12.9 3.8 22.3 3.9 23.8 0.8
50 to 99 miles 16.0 1.8 25.4 1.2 23.5 1.3
100 to 249 miles 19.8 2.4 20.2 1.4 19.5 2.3
250 to 499 miles 32.1 2.3 S S S S
500 to 749 miles 40.1 1.5 19.7 1.0 19.5 1.6
750 to 999 miles 27.5 0.3 15.5 0.3 15.8 1.0
1,000 to 1,499 miles 46.5 0.9 29.7 0.9 29.4 2.9
1,500 to 1,999 miles 32.6 0.5 32.7 0.2 32.3 1.7
2,000 miles or more 36.2 0.6 34.6 0.2 34.5 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 34.3 – S S 29.6 –
Less than 50 miles S S S S S S
50 to 99 miles S S S S S S
100 to 249 miles S S S S S S
250 to 499 miles S S 47.2 8.7 S S
500 to 749 miles 29.3 11.0 37.5 10.2 42.2 8.9
750 to 999 miles S S S S S S
1,000 to 1,499 miles 31.2 3.1 S S S S
1,500 to 1,999 miles S S S S S S
2,000 miles or more 42.0 8.9 45.6 10.4 45.7 11.6

All other 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 23.4 – 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 36.1 2.0 26.1 1.8
250 to 499 miles 34.6 5.7 22.4 8.6 25.2 6.6
500 to 749 miles 31.4 3.4 38.7 1.3 37.5 2.0
750 to 999 miles 31.6 3.3 32.1 3.2 32.6 3.1
1,000 to 1,499 miles 46.4 1.5 37.1 0.5 35.4 1.1
1,500 to 1,999 miles 45.3 3.6 35.5 1.8 36.4 3.9
2,000 miles or more 33.6 4.2 S S 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 14.3 – 27.8 – 36.0 –
Less than 50 miles 26.7 2.6 16.6 2.8 20.0 0.2
50 to 99 miles 20.5 0.6 20.9 0.9 23.3 0.2
100 to 249 miles 26.2 2.1 25.8 2.7 26.1 1.3
250 to 499 miles 20.3 2.7 34.5 3.2 38.3 2.7
500 to 749 miles 17.0 1.2 37.5 1.8 38.3 2.6
750 to 999 miles 26.4 1.7 S S S S
1,000 to 1,499 miles 32.3 1.8 S S S S
1,500 to 1,999 miles 39.8 2.2 42.5 0.4 46.8 1.2
2,000 miles or more 24.6 4.4 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 15.5 – 20.7 – 26.3 –
Less than 50 miles 26.7 2.5 15.5 3.3 19.1 0.2
50 to 99 miles 20.5 0.8 20.9 0.7 23.3 0.2
100 to 249 miles 24.7 2.3 19.7 2.6 19.3 1.3
250 to 499 miles 19.3 2.4 23.4 2.3 25.0 1.9
500 to 749 miles 19.6 1.8 35.0 2.2 35.9 2.0
750 to 999 miles 20.0 1.7 37.3 1.3 36.2 1.6
1,000 to 1,499 miles 20.2 0.7 21.2 0.4 21.5 1.1
1,500 to 1,999 miles 42.5 2.2 20.0 0.3 20.3 0.7
2,000 miles or more 28.9 1.1 28.9 0.9 29.0 2.3

All 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 48.4 – 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 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 S S S S S S
2,000 miles or more S S S S S S

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 26.9 – 44.3 – 39.9 –
Less than 50 miles 28.9 7.1 S S S S
50 to 99 miles 38.9 1.8 S S S S
100 to 249 miles 33.5 1.4 S S S S
250 to 499 miles S S 41.8 8.2 43.2 9.5
500 to 749 miles S S 45.7 1.4 46.4 2.7
750 to 999 miles S S S S S S
1,000 to 1,499 miles 37.4 4.1 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, Metropolitan Data, December 2004.