[OSM-talk] Historical Data in OSM database

M∡rtin Koppenhoefer dieterdreist at gmail.com
Sat Nov 13 11:22:04 GMT 2010


2010/11/12 Peter Wendorff <wendorff at uni-paderborn.de>:
> start_date, as you see in this example, is a generic tag, like e.g. width
> is.
> Refinements like start_date:construction, start_date:usage;
> start_date:planning; start_date:disusage; start_date:abandonment are
> possible - but start_date should not be used to be one of these.


this might be better to prevent tagging inconsistencies (start_date
not modified after change from construction to building/site), but
generally it is clear: start_date refers to the tagged feature, if the
feature changes, also the associated tags have to be reviewed.

cheers,
Martin



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