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I found a former limestone quarry, which is now (and was) a tourist attraction. How should I map this? Suggestions or a link to good documentation pages on the wiki is very much appreciated. These are the questions I can't really answer:
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I would tag that as There is no need to use a relation to connect the different feature as Openstreetmap is a database of geographic information which are already connected by virtue of their position. If there are lakes they are probably The processing facilities are most likely But I'm not convinced about the dissused tag.. :-(
(02 Feb '11, 13:37)
emj
It's not really elegant, but it is widely used and doesn't break data consumers which don't understand the "disused" concept. The alternative is disused=yes but that breaks every data users that doesn't know about this tag because it will assume that there still is a quarry which is plain wrong. Of course a nice 4d database (latitude, longitude and elevation plus a time range) would be cool but that is way beyond the current scope of Openstreetmap.
(02 Feb '11, 16:54)
petschge
We already have a time element to some degree with object history. Granted this isn't particularly useful until OSM is more complete.
(02 Feb '11, 17:43)
Baloo Uriza
More the question about if this is a landuse=quarry even if it is disused. It can be very hard to spot an non active quarry.
(03 Feb '11, 18:51)
emj
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Sure. Disused quarries range from indistinguishable from an active quarry to indistinguishable from a natural valley. It's hard to define precise lines what to tag as landuse=quarry, what as landuse=disused and what as natural=valley. Perhaps there is even a man_made=valley in between.
(03 Feb '11, 19:09)
petschge
Aaah. man_made=valley extra points for that one.. :-)
(05 Feb '11, 13:24)
emj
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My one issue with disused/abandoned quarries, that have been left for a long time and hence are now covered in vegetation, is that the choice of tagging becomes a bit binary, You either have the landuse=quarry be dominant, so the rendering shows it as a quarry OR you have historic=quarry landuse=scrub type of tags, which renders as scrub. It would be nice to have rendering showing the area being a quarry AND scrub, as both are correct. |
