BeNeLux Wiki in English, translation into other languages is started...
The Off-road Road type is only meant for paths that are impossible to drive with a normal car; 4X4 trails.
Use a regular Street road type with the unpaved attribute checked If the road is unpaved and possible to drive.
Currently, Waze does not plan to support a 4X4 vehicle type in the client app, but the developers have left this option for editors to map these paths, so they can be displayed on the map. They have an extremely high penalty associated with them (3 hours) and will not be suggested in any routes in almost all circumstances.
Specify if possible both Street and City name.