[OSM-talk] proposed bot edit for surface=granite, surface=marble and similar

[Martin Koppenhoefer]

I'd prefer "surface:material" compared to "material", it is in modest use
(800) https://taginfo.openstreetmap.org/keys/surface%3Amaterial
because the "highway" represents not just the surface.

Generally, maybe another subtagging step like "surface:material=stone"
"stone=granite" could make sense? It could also be used for material and
similar tags:
material=stone and stone=granite

https://taginfo.openstreetmap.org/tags/material=stone (180.000)
https://taginfo.openstreetmap.org/keys/stone (173 uses, of the kind we are
looking for)
https://taginfo.openstreetmap.org/keys/stone_type (false friend, this is
about specific stone types (shapes and purposes) rather than material)

https://taginfo.openstreetmap.org/tags/roof%3Amaterial=stone
...
Cheers,
Martin
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