Table 1b. Shipment Characteristics by Mode of Transportation for State of Origin: Percent of Total for 2007 and 2002
Estimates are based on data from the 2007 and 2002 Commodity Flow Surveys. Because of rounding, estimates may not be additive.
|Mode of transportation||Value||Tons||Ton-miles1||Value Standard Error of %||Tons Standard Error of %||Ton-miles Standard Error of %|
|Air (incl truck and air)||3.6||6.9||-||S||-||S||1.1||1.6||-||S||-||S|
|Parcel, U.S.P.S. or courier||16.8||10.1||0.2||0.2||0.9||0.8||2.4||1.4||-||-||0.2||0.4|
|Truck and rail||1.7||0.7||S||0.6||18.8||3.7||0.3||0.2||S||0.2||2.8||1|
|Truck and water||0.8||0.4||0.3||S||2.4||S||0.2||0.2||0.1||S||1.2||S|
|Rail and water||S||S||S||S||S||S||S||S||S||S||S||S|
|Other multiple modes||-||S||-||S||0.1||S||-||S||-||S||0.2||S|
|Other and unknown modes||4.7||4.6||5.8||2.9||1||1.2||1.2||1.4||2.5||1.5||0.4||0.4|
KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality. - = Zero or Less than half the unit shown; thus, it has been rounded to zero.
1 Ton-miles estimates are based on
estimated distances traveled along a modeled transportation network.
2 "Truck" as a single mode includes shipments that were made by only private truck, only for-hire truck, or a combination of private truck and for-hire truck.
3 Estimates for pipeline exclude shipments of crude petroleum.
NOTES: Rows are not shown if all cells for that particular row have no values. For example, specific state by mode rows are not shown in this table because there are no data for those rows. Value-of-shipment estimates are reported in current prices. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/publications/commodity_flow_survey/.
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 Commodity Flow Survey, December 2009.