Am Do., 20. Feb. 2020 um 10:54 Uhr schrieb Cascafico Giovanni < cascaf...@gmail.com>:
> Hello, > > I've an OSM compatible dataset that helps me to spot landfills. Older > ones are already covered by grass and/or trees. > > IMHO could be useful to save landfill locations for a future possible use. > Does it make sense tag the ones with surface alterations with level=-1 ? > > IMHO, landuse is not stacked, at least not in a case like this (there may be some exceptional situations, eventually). The fact that the landfill is overgrown still makes it a landfill, and all the toxic stuff is still there, just covered by a thin layer of soil and vegetation. Or shall I consider landuse=landfill as a functional tagging, hence > tagging them abandoned:landuse=landfill? that's a good question. Landuse is not completely consistent. There are a few landuses like quarry, landfill and even "harbour" which do not integrate well with the other landuses because these mentioned are typically used _also_ for features (i.e. if you split a landuse=quarry, you will have 2 quarries, opposed to e.g. landuse=residential, which simply says this area is used as residential area, and if you split it, the meaning remains the same, i.e. it is a property about the use of land). A possible solution would be the introduction of feature tags for these outliers, e.g. man_made=quarry, man_made=landfill / waste_dump, seaway=port / cargo_port / fishing_port etc. Cheers Martin
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