[Tagging] Was there every a proposal for the disused:key=* / abandoned:key=* lifecycle prefixes?

Paul Allen pla16021 at gmail.com
Fri Sep 27 11:52:25 UTC 2019

On Fri, 27 Sep 2019 at 11:02, Marc Gemis <marc.gemis at gmail.com> wrote:

so disused:amenity=pub ; building=pub (it looks like a pub);
> building:use=house (or is it :usage?)

Erm, I can't think of any pub I've ever been in or past that was in a
building that
could be described as looking like a pub.  All but three or four looked
like houses,
because that's what they originally were.  Back in the decades when
Cardigan was
one of the busiest ports in the country, around half the houses in the old
town were
pubs at one time or another.  Most churches and chapels have a distinctive
as do most supermarkets.  Most pubs and many small shops, if you removed the
signage, would look like houses, because that's what they originally were.

In any case, there is disagreement as to whether building should ever take
any value
other than "yes."  Many buildings that have distinctive styles have other
tags indicating
their function, so the reasoning is that  you don't need building=church if
you have
amenity=place_of_worship + religion=christian.  Counter-argument: Christian
places of worship can be chapels, churches, cathedrals with distinctive
or a building not recognizably a place of worship: a chapel near me is
considering moving
out of its impressive chapel and into an industrial unit so it has more
parking space.
Another counter-argument: we don't have any tag indicating residential
usage other
than building=house, so with one reason for building to have a value other
yes, there's no compelling reason to disallow other values.

> - watermills (no longer functioning, but the outside still looks like
> a watermill, now used as house, etc.)

A lot of those around here.  Some retain the wheel and leat, some retain
just the wheel,
some retain neither.  The clue is in the name, which is (or includes) Felin
or Melin (but
there are also the Welsh equivalents of "Miller's Cottage" and "Miller's
House" so it's
not as simple as just looking for "Felin" or "Melin."

They could be mapped with building=windmill/watermill/bunker and
disused:man_made=windmill/watermill or disused:military=bunker.
> I assume that disused=yes could also be used on bunkers, as they
> usually have no other function today. So there is no confusion with
> any other tags to which the "disused" could be applied.

I would say disused applies only to things that are not used at all,
as opposed to conversions.  As somebody reminded me earlier in the
thread, if it's been converted to other use then was:foo=bar is better.

At which point some people will shout "OSM doesn't map history."  Which
is good as a general rule but not as a universal rule.  Pubs appear in a
lot of website listings (beer guides, reviews, etc.) and armchair mappers
spotting one of those may add a pub that is no longer a pub.  Consumers
may spot a pub in one of those guides and look for it on the map, assuming
that if a building has the same name as the pub (as several pub conversions
I know of do) that it really is a pub.  Using was:amenity=pub or
disused:amenity=pub as appropriate makes the map slightly more useful.

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