Hi there!
What does highway=service mean on the nodes below? If I got that right you tried to map the road markings?
I don't think those should be mapped, but if you want maybe look at
road_marking=*

Hallo!
Ich bin gerade zufällig auf die beiden Knoten mit
highway=service
service=emergency_access
gestoßen. Das ist ziemlich unüblich.
Kennst Du entrance=emergency ?
osm.wiki/DE:Key:entrance

Hi there!
What was meant with this node tagged
highway=service?
node/2429510448
Typo or is there a new service road ?

OK, wenn ich das richtig verstanden habe, ist das eine Art Tunnel zum Fahrstuhl?
Vielleicht ergänzt Du dann auch noch
wheelchair=yes an den entsprechenden Wegen. Ich kenne mich vor Ort nicht aus.

Hi there!
You have created two nodes with
highway="crossing=island"
here, both with crossing=zebra.
If I got that right, you meant
highway=crossing
crossing=island
crossing_ref=zebra
Please check my changes:
changeset/36496952

Hi there!
You changed some roads from
highway=residential to
highway=alley
or
service=alley
I guess you meant
highway=service + service=alley ?
Please review my corrections:
changeset/36496764

Hi there!
Please explain: What is meant with
highway=settlement ?
Looks like a typo, but I have no idea for what:
way/260852667

Ich habe es mal auf
highway=footway
layer=-1
geändert, aber wenn ich das richtig sehe, fehlt noch so was wie tunnel=yes ,
und ein erklärendes
note="Wege des Tunnelsystems Jungfernstieg"
passt wahrscheinlich auch ?

OK, thanks, I've changed
node/3932589862
accordingly.

OK, so it is probably a barrier=gate .

OK, thanks for the feedback :-)

Hi there and welcome to OSM!
The tag highway=red_lights_cameras is rarely used.
Please check this page, it explains how to map a red light camera:
osm.wiki/Relation:enforcement

Hi there!
You have added two nodes with
highway=traffic_light. I changed them to highway=traffic_signals .
I guess those are movable ones for the construction work?
See changeset/36481144

Same question for this node:
node/3861632073

Hi there!
Please check this node:
node/3861632071
highway=traffic_lights
is unusual.
Did you mean
highway=traffic_signals or maybe just
highway=street_lamp ?

Hi there!
Please check this node:
node/1795225374
If it is a roundabout I would expect more than two roads connected to it and it should be a circular way with junction=roundabout. Maybe traffic_calming=island
fits better here?

Hi there!
I've changed a few highway=road to highway=service, do you know what kind of barrier this this node is?
node/3932589862

Hi there!
You have created an invalid
highway=unclassified; tertiary
here. I've changed it to tertiary.
Hope that was what you wanted to do?
See
way/31932448

Hallo!
Bitte schau mal auf highway=-1
bei
way/390211360
Offensichtlich ein Tippfehler, aber ich sehe nicht, was Du mappen wolltest.

highway=ramp is rarely used, maybe you can change it ? I am not a local, so I don't know the details.