[OSM-talk] stop deleting abandoned railroads

Warin 61sundowner at gmail.com
Thu Aug 13 23:33:11 UTC 2015

On 13/08/2015 11:24 PM, Ruben Maes wrote:
> On Thursday 13 August 2015 15:10:14 Mateusz Konieczny wrote:
>> On Thu, 13 Aug 2015 21:54:39 +1000
>> Warin <61sundowner at gmail.com> wrote:
>>> For example a demolished building .. may have a new building built on
>>> the same spot .. with the same outline.
>>> Leave the node data in OSM, change the tag building=yes to
>>> building=demolished (may not be rendered nor official OSM tagging)
>>> add a note as to who/why ..
>>> and then if rebuilt change the tag back to building=yes... with a
>>> source tag please.
>>> If the site has a different shaped building then the nodes will have
>>> to be changed, or the site gets used for something else .. then
>>> change it. But untill then leave the old data there.
>> This is a bad idea. Maybe [note=this building is demolished] to protect
>> against mapping from outdated aerial images may be OK.
>> But expecting data consumers displaying buildings to filter out
>> building=demolished, building=razed, building=proposed etc etc is a
>> really bad idea.
> Or you use demolished:building=yes as I said an hour ago.
> This is clearer than a note IMO,
> allows to retain all tags of the demolished building for reference and
> caters for potential data consumers interested in demolished buildings.

I like it Ruben. demolished: it is.

Not just for use on buildings, but bridges, poles .. any structure that could be rebuilt to the same dimensions, especially any with foundations that could be reused.

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