[Tagging] Usefulness of bicycle=dismount on ways

[SomeoneElse]

Jonathan wrote:
> I don't see any point in the bicycle=dismount tag, when there is a 
> change in speed limit we don't tag car=slowdown!  The only way to tag 
> the effect that the sign has is to change the access tag to exclude 
> bicycles. As I see it it's that simple.

Here's an example:

http://www.openstreetmap.org/browse/way/26194733

looks like a cycleway and quacks like a cycleway - it's clearly a 
cycleway.  It also has a "cyclists dismount" sign on it.

Cheers,

Andy