German version of this page: User:John07/De:middle tag
In Germany we have a lot of highway=tracks that have 2 ruts/tyre tracks with one surface and the middle with another surface.
For example, here we have surface=gravel on the left and the right and in the middle we have surface=grass.
My tagging suggestion:
- The normal surface tag for the ruts/tyre tracks, e.g. surface=gravel
- A new tag called surface:middle=* for the surface in the middle, e.g. surface:middle=grass.
- If a renderer/application does not support the surface:middle=* tag, we have a easy fallback to the normal surface tag. This is also enough for the most car routing applications for example, because the car only drives on the 2 ruts/tyre tracks on the left and the right.
- The values for surface:middle=* are the same like for surface=*.
Some tagging examples: