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
| 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.