[OSM-talk] Historical Data in OSM database

[M∡rtin Koppenhoefer]

2010/11/12 Andrew Errington <a.errington at lancaster.ac.uk>:

> At the moment there is are 'temporary' tags to record this:
>
> construction_start_date=2003-05-09
> construction_end_date=2004-12-09


IMHO those are fine. If you use them regularly might be worth to
document them as feature in the wiki so that others use them as well
(if you haven't already done so, I didn't check).


> I think 'start_date' on its own is insufficient, and really not the right
> tag to mean 'construction has ended and people started using the
> building/structure/whatever'.


I think it is a misconception to see it as "construction ended" it is
"feature starts", and the end of construction is just a coincidence.
IMHO start_date is OK for what it is documented, but other dates are
possible and need different tags.

> However, if it's defined that way then it's
> fine, but we then need a way to tag the start of construction.


didn't you write above that you already invented this? ;-)

cheers,
Martin