[Tagging] bridge movable vs swing vs swinging

[Philip Barnes]

On Thu, 2014-08-07 at 17:53 +0200, Martin Koppenhoefer wrote:
> 
> 2014-08-07 17:25 GMT+02:00 Richard Z. <ricoz.osm at gmail.com>:
>         
>         Wondering what to do with that? With just 687 objects
>         worldwide the problem
>         would be easily fixable.. just how?
> 
> 
> I think tagging the type of bridge as road attribute might be an
> exxageration. We should start mapping bridges as objects (area) and
> then add relevant detail like bridge typology to this. Maybe
> man_made=bridge? and bridge:type? This object could get further
> attributes so that they can be combined. Current bridge values (the
> road attribute) are a mess:
> http://taginfo.openstreetmap.org/keys/bridge#values
> 
> viaduct
> 39 055
> 1.76%
> ✔
> A ''long'' rail,
> road, or other
> bridge made up of
> many short spans.
> no
> 6 987
> 0.32%
> -
>  
> suspension
> 2 035
> 0.09%
> ✔
>  
> aqueduct
> 1 821
> 0.08%
> -
>  
> abandoned
> 776
> 0.04%
> -
>  
> culvert
> 734
> 0.03%
> -
>  
> swing
> 
> 
> 
> "culvert" isn't a bridge type at all (in my understanding), neither is
> aqueduct. IMHO we should distinguish between different aspects (there
> is not 1 bridge typology, but there are more systems, e.g. by type of
> construction and construction material, by shape, by
> function/features, etc.). See also here for reference:
> https://en.wikipedia.org/wiki/Bridge#Types_of_bridges
> 
> 

An aqueduct is definitely a type of bridge, i.e. one carrying a
waterway, usually a canal over a road, river or valley.

The most famous, and scariest of them all
http://en.wikipedia.org/wiki/Pontcysyllte_Aqueduct

Phil (trigpoint)