(Commodity Flow Survey data only)
|Air (including truck and air)||252||4||5|
|Parcel, USPS, or courier||1,562||34||28|
|Truck and rail||187||226||197|
|Truck and water||58||146||98|
|Rail and water||14||55||47|
|Other multiple modes||45||114||46|
|Other and unknown modes||279||272||34|
aTruck as a single mode includes any shipment that was made by private truck only, by for-hire truck only, or by a combination of private and for-hire truck.
bEstimates for pipeline exclude shipments of crude petroleum.
Key: S = Estimate does not meet publication standards because of high sampling variability or poor response quality.
Notes: The data presented in this table exclude shipments from entities classified in forestry, fishing, utilities, construction, transportation, and most retail and services industries. Farms and government-owned entities were also excluded. Also excluded are most imports and commodities shipped from a foreign location to another foreign destination that pass through the United States. Other and unknown modes refers to shipments using modes not listed above or any shipment for which the mode of transportation could not be determined.
Source: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census: Transportation 2007 Commodity Flow Survey, December 2009.