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Traffic Barriers
Traffic Barrier. The dataset contains polylines representing planimetric traffic barriers, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office... -
Hydrography Lines
This layer contains hydrography such as streams, rivers, and other linear hydrography features. Hidden hydrography, inferred drainage connectors, or culverts connect visible... -
Airport Runway and Taxiway
Taxiway, Apron: Delineate footprint of the following features. A taxiway connects aircraft to other areas and facilities of an airport. The apron is an area of an airport where... -
Building Footprints
Building structures include parking garages, ruins, monuments, and buildings under construction along with residential, commercial, industrial, apartment, townhouses, duplexes,... -
Obstructed Areas
Obscured Areas are areas in the compilation imagery that due to shadows, dense vegetation, heavy tree cover, building lean, etc., that completely block out all image detail and...