[OSM-newbies] cycle map rendering

[Akkana Peck]

Alex Mauer writes:
> As for the values, for a cycle-map I’d be inclined to not even highlight
> anything which has only bicycle=yes, because it would quickly overwhelm
> everything else – perhaps it’s different where you are, but around here
> all roads except motorways (and possibly a few others, specially signed)
> allow bicycles and would thus be bicycle=yes (or would be, if I would be
> bothered to fully tag every road like that).
> 
> Beyond that there should be only bicycle=designated.  There is also
> bicycle=official, but perhaps that can be preprocessed into access=no +
> bicycle=designated before rendering begins?  The meanings are the same...

I've been following along trying to understand the difference
between bicycle=designated and bicycle=yes.
http://wiki.openstreetmap.org/wiki/Tag:access%3Ddesignated
seems to say that it gives some sort of special status to that
mode of transport compared to others, which isn't the case on
multi-use paths here. 

But if you think that bicycle=yes paths shouldn't be shown on a
cycle map but bicycle=designated should, then there must be some
important difference I'm not getting from that wiki page; it's
clear to me that our cycle trails ought to show up on a cycle map.

Could you possibly explain this a little, so I know how to mark
trails in future (and whether I should go back and change the
ones I've already entered)?  Should I (and anyone else who's been
using bicycle=yes) be changing all our highway=path bicycle=yes
mountain bike trails to bicycle=designated instead?

	...Akkana