2009/8/20 Apollinaris Schoell <ascho...@gmail.com>:
> how could you do this practically? aligning 18 lanes as individual
> ways is impossible in the current data model and editors.

Why? It's very possible: just do it.

Btw: I's not 18 lanes, but
1+parking+1+divider+2+divider+3+divider+3+divider+2+divider+buslane+divider+pedestrian+cyclelane+1+divider,
so I was not just counting the lanes but also the dividers (and it's
more than 18).

Currently that's different ways (because of the dividers) with
lanes=3, lanes=2, etc., which does somehow work, but not represent
well the situation at junctions.

> agree that ways with dividers should be separate ways because routing
> must know crossing is not allowed. adding this info to any lane
> concept will make it too complicated

Yes, but maybe you got me wrong: I suggested to draw and tag the
dividers as well.

> as soon as crossing is allowed all lanes can be modeled with any multi
> lane numbering scheme.
> having them as separate ways is wrong then
> because routing will not work for lane changes.

that what exactly my point: It _will_ be possible with this kind of
relation, that indicates, where you can cross. This is IMHO necessary
e.g. for motorway-ramps, separately mapped pavements and cycleways,
etc.

cheers,
Martin

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