(Commodity Flow Survey Data Only)
|Less than 100 miles||356||368||440|
|100 to 250 miles||808||810||866|
|250 to 999 miles||1,065||1,130||1,232|
|1,000 or more miles||2,233||2,472||2,209|
NOTE: Shipments are grouped into distance categories based on Great Circle Distance (GCD). GCD is the shortest distance between 2 points on the surface of a sphere.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, based on the 1993, 1997, and preliminary 2002 Commodity Flow Survey data.