[Tagging] still_visible_on=* or maybe still_visible_in=?

[marc marc]

Le 27. 06. 18 à 15:38, Mateusz Konieczny a écrit :
> completely destroyed road should not be present in OSM, but 
> it may make sense
> to keep destroyed:highway=service until it is not visible on various 
> aerial images to avoid remapping
> it by armchair editors.

> But I am unsure which version is better - still_visible_in or 
> still_visible_on?

an editor use imagery_used to tell witch imagery was used to add this info.
so why not using outdated:imagery_used to tell witch layer still contain 
objets that didn't exist anymore.