[Tagging] What about a disused quarry and historic surface mining?
t.pfeifer at computer.org
Mon Jan 9 13:00:58 UTC 2017
On 09.01.2017 13:15, ael wrote:
> This thread has reminded me that I have encountered problems with
> mapping disused quarries and surface mining.
> The quarries that I have in mind are major geographical features - they
> have not been filled in. I tried tagging them as landuse=quarry and
> disused=yes. If landuse really does mean current use of an area, that
> looks contradictory. Often such old quarries are now in use for
We have lifecycle tagging for this purpose. Your former quarry is
Please do not use "disused=yes" as it is considered troll-tagging, first
saying it is simething, and in the next line negating it.
> Often such old quarries are now in use for recreation, often the water filled part for watersports. So perhaps that
> is "land"use=recreation or landuse=quarry;recreation? It seem clear that
> there is a problem here. A (large) quarry is perhaps geographical rather
> than landuse?
The landuse tag should describe the current use, not the former. Thus it is
natural=water (as it has been re-naturated into a lake)
In the end is is just mankind changing landscape, as other geological
processes do; such as the glacier in the ice age carved out a valley.
> I have the same problem with historic surface mining areas: these are
> major features on the landscape, often with very large excavations, and need
> recording/rendering, yet now are "just" moorland or have other uses.
Rendering depends on your interest. You can render a map with disused
features. You can convince the carto team to do so on the major map if
you prove sufficient general interest.
> Again, I didn't think landuse=surface_mining + historic + disused worked
> and certainly didn't render.
> I am tempted to bring up the case of major bridges which are parts of
> abandoned railways not being rendered. While that really is a bug in the
man_made=bridge is rendered on the main carto map. If the bridge outline
of a major bridge is not in the database, it's the mappers' fault, not
> renderers, if we had some tag for major physical features that would
> be rendered regardless of any historic or disused tags. it would solve
> many such problems.
> Any suggestions: do we need new tags?
disused:landuse=* 616 of which quarry are the most frequent with 227,
followed by 101 military.
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