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District of Columbia/Special roads/Main

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  • Alleys should always be mapped if they have a name.
  • Alleys should always be mapped if they are the sole access to a home or business.
  • Alleys should always be set to "Private road"
  • Alleys are normally mapped if they are acknowledged by the municipality.

If an alley does not meet the above criteria, mapping is optional. Leave the name field blank.

Traffic circles

Washington, D.C. has a large number of traffic circles. Most of the circles are named, and (unlike most roundabouts and rotaries in other jurisdictions) these names typically appear on street signs at the intersections between the circle and the connecting streets/avenues. Some circles even have assigned street addresses. Also, some circles have non-standard configurations that include overpasses, underpasses, and/or streets passing through the center of the circle. Because of these situations, D.C. deviates from the usual Waze editing rules for roundabouts in the following respects:

  1. If the circle has posted street signs, then the road segments of the circle should be assigned this name in WME, and not left un-named. If there are no street signs, check the "No name" box. If there are street signs but they name the connecting streets rather than the circle, name the segments so that turn instructions given to drivers will match what is on the street signs.
  2. If the circle has any interior intersections (that is, a street or avenue that crosses through the circle and intersects at ground level with the circle), then do not use the Waze roundabout type for the road segments; these circles should be converted to ordinary street/highway segments. You should still follow the guidance at Roundabouts/USA#Road type in deciding what type of segments to use, even for this kind of circle.