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:
osm.org/way/377345719

please review:
What was meant with surface=A ?
osm.org/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

please review:
What was meant with surface=8 ?
osm.org/way/315181425

please review:
what was meant with surface=6 ?
osm.org/way/307311618

please review:
1) what was meant with surface=6 ?
2) Bing doesn't show this way, is it a
highway=proposed or maybe it is in a tunnel?

Please review:
What is meant with surface=1 ?
way 258238620,
way 258238621,
way 258238625,
way 258238624,
way 258238627,
way 258238626

Bitte prüfen:
Was war mit surface=1 gemeint ?
osm.org/way/327307700

please review:
what was meant with surface=1 ?
osm.org/way/224694849

please review:
what is meant with surface=1 ?
way 296681738,
way 296681740,
way 206075480

please review:
what is meant with surface=1 ?
osm.org/way/361392131
osm.org/way/361391310

same question for these ways:
191365980, 195412587

please review:
what was meant with surface=1 ?
osm.org/way/184178265

Bitte prüfen:
surface=1 an zwei Wegen:
osm.org/way/114926565
osm.org/way/181157955

Bitte prüfen:
was war mit surface=1 gemeint?
osm.org/way/114926565

bitte prüfen:
was war mit surface=1 gemeint ?
osm.org/way/35210213

please review:
I've changed surface=1 to surface=asphalt
osm.org/way/29099940

I tried to fix it, see
osm.org/changeset/35311412