[Tagging] [OSM-talk] Should we map things that do not exist?

[Martin Koppenhoefer]

sent from a phone

> On 4 Jan 2021, at 23:28, Paul Allen <pla16021 at gmail.com> wrote:
> 
> From aerial imagery alone, you cannot tell that the alignment passes
> through the living room, only that it passes through the building.
> It might be a tunnel=building_passage (I've mapped several of those
> around here, although none has been for a former railway).  It almost
> certainly isn't a building passage, but you cannot tell that from aerial
> imagery alone.


here’s a 10 storey building that was built on top of an existing railway:
https://www.openstreetmap.org/way/38367042

Admittedly it was not abandoned but in use then.

Cheers Martin 
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