In the Muschellen-Heitersberg region there are quite a few roads that have signs indicating a bicyle route (signs 4.50.1, 4.50.5, 4.51.3 and others) that are not part of an official (numbered) route and are in general currently not tagged in OSM.
I currently don't believe that individual relations are really practical to document these "routes", since you navigate them more like you would follow normal road signs and they tend to branch a lot. Example: there's one that goes practical past my front door that has signs that point to Widen (and in the other direction to Dietikon), in Widen it branches multiple time with signs pointing to Bremgarten, Lieli, Unterlunkhofen and more.
A further point is that
SR 741.11 Art. 43 Motorräder, Motorfahrräder und Fahrräder; Hintereinanderfahren ...
would seem to indicate that, such signage actually has a legal implication as well (not that the term Rad-Wanderweg turns up any where else), which could be tagged where appropriate.
Any opinions? Has this been discussed before?
Simon