Es ist keine Diskothek sondern ein Konzertsaal. Und die Beschreibung sollte als normale Beschreibung eingetragen sein, nicht als Beschreibung für Rollstuhlfahrer.

private road

this is a proper road now, but private.

this is a private road, no public access

this village is called Nden

There is a big bus terminal here, I think "Busstation B"?

U3 goes all the way until here. currently not mapped correctly.

the urinoir here shows up when I search for toilets, but is not rendered on the map (most recent version as of July 19, 2018), using osmand. not sure how to resolve this.

line 16 missing.

tramstop poi does not include the line yet. no 16 passes here. maybe check the whole tram 16 route.