Most urban communities have very short driveways between the named road they live on and the garage or carport on their property. In general these very short segments should not be mapped because they have no name, would clutter the map in the client app, take a lot of time to draw, and would greatly increase the overall size of the Waze mapping database with very little return.
In the case of very long driveways, it may helpful to a driver to see the driveway mapped on the client app. In those cases it may be prudent to add a road. See the article on [[Driveways]] for more information.