[OSM-talk] Building Site - landuse=construction

[Robert (Jamie) Munro]

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Ulf Lamping wrote:
> Yes, I have a major concern about this proposal, basically the "under 
> construction" concept is very certainly not limited to landuse!
> 
> There are three more or less identical proposals which should be solved 
> here (or at least we should have an idea to solve it):
> 
> http://wiki.openstreetmap.org/index.php/Proposed_features/Building_site
> http://wiki.openstreetmap.org/index.php/Proposed_features/Construction 
> (which is more or less identical to Building_site - probably page should 
> simply be deleted)
> http://wiki.openstreetmap.org/index.php/Proposed_features/Road/Rail_under_construction 
> (construction of railway / highway)

I don't think we should be mapping construction sites in general. A
construction site is only a transitory state between 2 other states
(e.g. the old building and the new building). We should be mapping the 2
states and using start_date and end_date to mark them.

I'm wondering about extending the date tags so that we can put
start_date=future to mark something that is under construction and will
take an unspecified amount of time, and end_date=past for something that
has gone, but we don't know when it went. This should cover all
under_construction cases.

Robert (Jamie) Munro
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