[Tagging] bicycle=use_sidepath applicable to bicycle lanes?

[Martin Koppenhoefer]

sent from a phone

> Am 26.11.2015 um 21:53 schrieb Joachim <noreply at freedom-x.de>:
> 
> The question is: Are there somewhere on this world non-compulsory
> cycle lanes (cycleway=lane)?


can you define what a compulsory cycle lane means? Is it that when cycling on the road you have to use this lane? Or that you aren't allowed to use any other nearby way if you are on a bike? How far is the range of this prescription? 

What are the practical effects, given that the lane and the street are basically the same way in OSM?

What if there are several compulsory/admitted cycle tracks on the same road?

cheers 
Martin