[OSM-talk] razed railways and other things that don't exist today

[Zeke Farwell]

That is a good summary, though "Once the OSM available satellite imagery
does not show the feature" is perhaps a bit too strict.  Some things aren't
always visible or clear from aerial imagery and need to be surveyed in
person.  I'm sure the intent of this phrase is not to encourage people to
delete anything they can't see on aerial imagery, but it could be
interpreted that way.

--
Zeke

On Mon, Dec 5, 2022 at 7:59 AM Mateusz Konieczny via talk <
talk at openstreetmap.org> wrote:

> I would mention
>
> - it is OK to temporarily map ones not visible on aerial images but likely
> to be mistakenly
> remapped
> - "can safely be removed" - would change that it not only can be removed,
> but also
> should be removed
>
>
> 5 gru 2022, 11:26 od 61sundowner at gmail.com:
>
> I have placed what I believe is a summary of this discussion on the OSM
> wiki for lifecycle
>
> It reads
>
> "The following tags function is to reduce the possibility of a mapper
> remapping the feature from existing satellite imagery that shows the old
> state of the feature. Once the OSM available satellite imagery does not
> show the feature the feature can safely be removed from OSM. Renders cannot
> rely on OSM preserving physically vanished history."
>
> There after follow the tags 'demolished', 'removed', 'destroyed' and
> 'razed'.
>
> https://wiki.openstreetmap.org/wiki/Lifecycle_prefix#Stages_of_decay
>
>
> If there are any further thoughts or even corrections to my text above
> then please post them here.
>
>
> My own thoughts?
>
> I have not placed any warning about mechanical edits to seek these out as
> enough warning is evident in the requirement for it to be not shown in the
> OSM satellite imagery, which would discourage me so I think it will work
> with others.
>
>
>
>
>
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