Table 3-3: Shipments Originating in the District of Columbia by Mode of Transportation: 1997

Table 3-3: Shipments Originating in the District of Columbia by Mode of Transportation: 1997

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  Value Short tons Ton-miles
Number
($ millions)
Percent Number
(thousands)
Percent Number (millions) Percent
All modes 2,471 100.0 3,244 100.0 53 100.0
Single modes 2,208 89.4 3,230 99.6 48 92.1
Truck 2,187 88.5 3,229 99.5 47 88.7
For-hire S S 37 1.1 S S
Private truck 2,129 86.2 3,193 98.4 44 83.0
Rail Z Z Z Z Z Z
Water S S S S S S
Shallow draft S S S S S S
Great Lakes Z Z Z Z Z Z
Deep draft S S S S S S
Air (including truck and air) Z Z Z Z Z Z
Pipeline Z Z Z Z S S
Multiple modes S S S S S S
Parcel, U.S. Postal Service, or courier service S S S S S S
Truck and rail intermodal combination Z Z Z Z Z Z
Truck and water Z Z Z Z Z Z
Rail and water Z Z Z Z Z Z
Other multiple modes Z Z Z Z Z Z
Other and unknown modes S S S S S S

KEY: S = data do not meet publication standards because of high sampling variability or other reasons; Z = zero or less than 1 unit of measure.

NOTE: The Commodity Flow Survey covers business establishments in mining, manufacturing, wholesale trade, and selected retail industries. The survey also covers selected auxiliary establishments (e.g., warehouses) of in-scope multiunit and retail companies. The survey excludes establishments classified as farms, forestry, fisheries, governments, construction, transportation, foreign establishments, services, and most establishments in retail. Due to industry-wide reporting problems, shipments by oil and gas extraction establishments are also excluded.

SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 1997 Commodity Flow Survey, Washington, DC: 2000, data from CD-ROM, CD-EC97-CFS.