On 03-Jan-18 01:59 PM, Warin wrote:

----------------------- So OSM decaying things - with decisions leading to the next category

where something has ceased being used (note, observation and judgement required, fairly easy);
_disused_: -
where putting it back into service requires substantial work (note, observation and judgement required)
_abandoned:_
where restoration is uneconomic (note, observation and judgement required)
Some object to this as it requires judgement, but then so too does the step between disused to abandoned. This definition is not as fuzzy as that of disused to abandoned

_ruin/ruins/ruined:_ (ruined matches the tense of the above tags so would make sense that way) where the feature no longer exists, there maybe traces, but few of them. (note, observation and judgement required though this is fairly easy) _demolished/removed/was/destroyed/razed/gone/past/former_ - all the same thing as far as results on the ground - the feature no longer exists. So why the need to signify the method? In one word non-existent - and that might be the best tag to use? Some want to put these in to try and stop additions of things that are not there e.g. a building in satellite imagery that has been demolished. So 'non_existent:' might be the best to hope for.



As well as non-existent there is 'absent' and that might be better as it is a single word without negation. Is it easily translated into other languages? It has a Latin base.


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