Can you please give me an example of where a polygon is not closed? There are some lines that actually look like open polygons—but they are lines because they are interrupted by a physical object that is not recorded in OSM.
I'll be happy to check this again, though.

Best, Alex

Hi all,

Please excuse the confusion,

No—this is not automatic input. I received the data from FRAPORT some time ago and entered it. I think it can be useful to identify the staging areas.
Now, a lot has changed in recent weeks and the staging areas have been redefined. It was too difficult for me to work out the individual differences. If there is a clever tool for this, I would be grateful for any tips. So I deleted the old staging areas and simply entered the new areas.

What would have been the way to act in accordance with OSM?

Best, Alex