[Tagging] Fire_hydrant: tagging namespace documentation

[marc marc]

Le 12. 09. 17 à 10:33, François Lacombe a écrit :
> But taginfo shows approximately 70 keys in this namespace.
> The most of them aren't documented.
> Where can I find additional information about keys ?
> fire_hydrant:street (Key page redirects to emergency=fire_hydrant 
> without any mention of fire_hydrant:street key in... not so good)
> fire_hydrant:housenumber
> fire_hydrant:city

The doc for the meaning of these tags, IMHO, doesn't exist,
those 3 tags are the "work" of a single person who decided,
it seems without discussion, to duplicate the general page
to add tags which he did not even describe. those pages have in the 
meantime been replaced by a redirect with comment "duplicate content.
> https://wiki.openstreetmap.org/w/index.php?title=Key:fire_hydrant:city&diff=prev&oldid=1055878

On the Swiss mailing list, work has already started to clean up this,
we talked about it again last week.
it is useless to add country=CH to all hydrant in Switzerland or say 
that any object of a city is in the city. apps/tools need to improve
geolocation information they provide through existing boundary.
Maybe the key "street" could have a value (only) when a hydrant is 
between 2 streets, to specify witch street must be taken to get it.
Maybe it could be addr:street like for POI/building
However, I have not yet see this situation.

Once again, I believe that the current proposal should NOT be burdened 
with additional amendments, which would be better dealt with separately. 
I think it would be needed to adopt useful improvement in order
to allow/request tools changes as well.

And with another task, cleaning/standardization work is probably
needed for marginal/conflicting tags, which often requires to talk
at the local level to be accepted.