[Tagging] Feature Proposal - RFC - Obstacle

Konfrare Albert lakonfrariadelavila at gmail.com
Thu Nov 1 09:58:31 GMT 2012


Hi!

I wanted to add in «Obstacle» page, the keys obstacle=bridge and
obstacle=lock that are in use, but not documented. There are values that
refers to obstacles in waterways.

I have a doubt... I think that obstacle=bridge is a value consistent with
the obstacle definition:
http://wiki.openstreetmap.org/wiki/Proposed_features/Obstacle#Differences_with_other_keys
But I'm not really sure with the key obstacle=lock , because I think that
could be better use barrier=lock or man_made=lock (I'm not a marine, and I
don't have a exact idea about what is exactly a lock or a lock gate). The
question is that this key=value is used more than 400 nodes and ways (
http://taginfo.openstreetmap.org/keys/obstacle#values), I must add this
value on the page? (Although I don't think is really an obstacle?)

Another question: Someone knows what refers the key obstacle=line?

Thanks!

ALBERT


2012/10/29 Martin Koppenhoefer <dieterdreist at gmail.com>

> 2012/10/29 John Sturdy <jcg.sturdy at gmail.com>:
> > Where an obstacle is at the crossing of two ways, it should be made
> > clear which of the ways it is an obstacle on.
>
>
> it is clear: it will be tagged on the way it refers to. If two ways
> have a node in common, you shouldn't tag the obstacle applying only to
> one way on this crossing node but be more precise. If you tagged the
> node in common it would apply to both ways.
>
>
>
> > In particular, a bridge
> > might be an obstacle to the way passing under it (if it's a low one,
> > or has a narrow arch) or to the way passing over it (by being narrow
> > from parapet to parapet).  But this shouldn't be a problem if the
> > object tagged as "obstacle" is a way rather than a node.  What would
> > be the best way to tag a low bridge carrying a canal over a river, for
> > example? (I'm pretty sure there are some examples of this.)  Tag a
> > short section of the river as "obstacle", where it passes under the
> > bridge?
>
>
> +1, that's how it would be done. Basically there is no particular
> problem with this tag here, it is just the same as other barrier-tags
> or maxheight for instance.
>
> cheers,
> Martin
>
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