OK, thanks for the feedback.

Bitte prüfen:
Was war statt
highway=turning_circle an diesem Gebäude gemeint ?
way/379063677
Weitere:
way/378961398,
way/378961403,
way/378961400,
way/378961401

OK, thanks for the feedback.

welcome to OSM!
I've noticed that you use the tag
highway=turning_circle for a way,e.g
here:
way/380202307
Normally, the tag should be used on a single node, see
highway=turning_circle
In your case I think the best is to keep the way and use highway=service instead.

Ich sehe gerade, wir sprechen beide Deutsch. Danke für die Rückmeldung.
Wirst Du es selber ändern ?

danke für die Rückmeldung.
Das tag taucht tatsächlich recht oft auf, ich habe mich schon gefragt, ob es so was wie
1 m² bedeuten soll.

Please review:
What is meant with surface="2,0" ?
Expected values
way/308541791

Please review:
What was meant with surface=".5" ?
way/361182692

Bitte prüfen:
Was ist mit surface=.5 gemeint ?
way/266332355

Bitte prüfen:
Was war mit surface=-5 gemeint?
way/279842843,
way/113242469

Please review:
surface=" "
Looks like grass in Bing.
way/372152451

Please review:
What is meant with surface="--" ?
Looks like asphalt or beton.

Please review:
What is meant with surface=b ?
way/355366986

Please review:
What was meant with surface=b ?
way/132054219

Bitte prüfen:
Was war mit surface=b an einem Gebäude
gemeint ?
way/93778862,
way/93778820,
way/93778822

please review:
I assume surface=b stands for beton?
way/170511971,way 170511974,way 170511973,way 170511978,way 170511977,way 23136293

please review:
I've changed surface=A to asphalt,
but I've no idea why layer=2 is used here:
way/377345719

please review:
What was meant with surface=A ?
way/207249499

please review:
What was meant with surface=A ?
I've changed it to asphalt.

Bitte prüfen:
Was war mit surface=10 gemeint?
way/25073312