(Commodity Flow Survey data only)
|Mode of transportation||Value||Tons||Ton-miles|
|Air (includes truck and air)||1,643||0.2||64||–||85||–|
|Parcel, postal, or courier||4,268||0.6||245||–||119||–|
|Other multiple modes||5,363||0.8||18,500||0.8||12,369||3.8|
|Other and unknown modes||6,061||0.9||14,241||0.6||2,342||0.7|
KEY: – Represents and estimate equal to zero or less than 1 unit of measure; S = Estimate does not meet publication standards because of highly sampling variability or poor response quality.
as a single mode includes shipments that were made by private truck, for-hire
truck, or a combination of private and for-hire truck.
(2) Estimates for pipeline exclude shipments of crude petroleum.
SOURCE: Bureau of Transportation Statistics (USDOT), Research and Innovative Technology Administration, Bureau of Transportation Statistics, and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.