[Tagging] Bridge relations. Is that a 'thing'?

[Holger Jeromin]

Dave F <davefoxfac63 at btinternet.com>
 Wrote in message:
> Hi
> 
> Recent addition in my neck of the woods:
> 
> http://www.openstreetmap.org/relation/5979157
> 
> A relations collecting together the bridge outline & all the lanes. It's 
> the first I've come across. Are they widespread.
> 
> IMO I can't quite see the point of it & to me, comes under the heading 
> 'relations aren't meant to be collections of things'.
> 
> Opinions?

The concept is quite old 

http://wiki.openstreetmap.org/wiki/Relations/Proposed/Bridges_and_
Tunnels

About 4000 relations are tagged. 

I think with the current rendering in OSM carto of the outline
 (man_made=bridge) most mapper will stop with the outline. One
 main problem (bridge name is not highway name) is elegantly
 solved with the outline. 

I am not sure which questions are not answered by finding all ways
 inside the outline with the same layer. 

-- 
Holger


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