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Interstate Highways
District of Columbia —
Roadway Street Blocks representing Interstates, Freeways, Expressways in the District, This data set was created to act as a basis for public and private institutions... -
Roadway Functional Classification
District of Columbia —
Roadway Street Block by Functional Class. A single line, segmented at all intersections (alley, service road, drive, street, and driveway centerline types),... -
Roadway SubBlock
District of Columbia —
SubBlock represent the near-full extent of our centerline network (only driveways are excluded). SubBlock is the finest grained, 'base' segments from which all other...