Table 1c. Export Shipment Characteristics by Export Mode of Transportation: Percent of Total for 2007 and 2002
Table 1c. Export Shipment Characteristics by Export Mode of Transportation: 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.
Export mode of transportation | Value (percent) | Tons (percent) | Value Standard Error of % | Tons Standard Error of % | ||||
---|---|---|---|---|---|---|---|---|
2007 | 2002 | 2007 | 2002 | 2007 | 2002 | 2007 | 2002 | |
All modes | 100 | 100 | 100 | 100 | - | - | - | - |
Single modes | 89.1 | 85.4 | 96.1 | 92.9 | 0.5 | 1.3 | 0.5 | 1 |
Truck 1 | 17.8 | 24.9 | 12 | 11.3 | 0.6 | 1.9 | 0.7 | 1.6 |
Rail | 4 | 2.9 | 10.6 | 10.2 | 0.4 | 0.3 | 1.1 | 1.9 |
Water | 35.1 | 27.2 | 72.6 | 70.7 | 0.8 | 1 | 1.6 | 3.2 |
Air (including truck and air) | 32.1 | 30.3 | 0.8 | 0.7 | 0.7 | 1.3 | 0.1 | 0.2 |
Pipeline 2 | S | S | S | S | S | S | S | S |
Multiple modes | 6.6 | 12.0 | 0.1 | 5.0 | 0.4 | 1.5 | - | 0.9 |
Parcel, U.S.P.S. or courier | 6.6 | 4.1 | 0.1 | 0.1 | 0.4 | 0.5 | - | - |
Other and unknown modes | 4.4 | 2.6 | 3.8 | 2.1 | 0.3 | 0.3 | 0.5 | 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 "Truck" as a single mode
includes shipments that were made by only private truck, only for-hire truck,
or a combination of private and for-hire truck.
2 Estimates for pipeline exclude shipments of crude petroleum.
NOTES: Value-of-shipment estimates have not been adjusted for price changes. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/cfs.
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.