[Tagging] Tunnels and bridges

Tobias Knerr osm at tobias-knerr.de
Thu Jan 31 15:38:47 GMT 2013

On 31.01.2013 16:24, Janko Mihelić wrote:
> I even drew it:
> http://i.imgur.com/uk5RXjL.png
> So, a renderer could find out if a road that has the tag bridge=yes is
> connected to a way that has a tag building=bridge on both ends. If it
> is, it doesn't render the black lines on left and right of road. That's
> why I think it's better not to remove the tag bridge=yes from roads that
> have the bridge area around them.

It will not be possible for every way on top of the bridge to share
nodes with the outline.

You may have to split the way across the bridge because one of its
attributes changes - you will end up with ways contained within, but not
connected to the outline.


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