[Tagging] Tunnels and bridges

Martin Vonwald imagic.osm at gmail.com
Fri Feb 1 08:49:40 GMT 2013

2013/2/1 Tobias Knerr <osm at tobias-knerr.de>:
> On 01.02.2013 07:22, Martin Vonwald (imagic) wrote:
>> We have a spatial database so if all features are within a closed way there is no need for a relation. Why is there a different reasoning for a bridge?
> Because it is usually _not_ the case that all the features within the
> bridge outline polygon belong to the bridge.

For example? And I'm talking about features on the same level/layer.
If you argue with different layers than we would have a problem with
the famous waterpark if a bridge runs over it. But I doubt that many
would suggest a site-relation in such situation.

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