> Am 22.03.2015 um 15:39 schrieb fly <lowfligh...@googlemail.com>:
>
> but how to handle buildings which where finished after two/three centuries ?
start_date according to the wiki is the completion date, or the date when the
feature became active. FWIW, buildings very often get extended, changed, even
rebuild, especially those that lasted for centuries. We don't have an exact
method to store this information in OSM (and doing it would probably go beyond
our scope and methods, even a single wall will often be of different periods).
You must see start_date as an approximate method to give some indication (I
suggest to use the oldest start date in cases where the building has undergone
several building phases, or maybe the most significant if nothing of the oldest
building can be seen)
cheers
Martin
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