Hi!
I've noticed this changeset because of the typo in tag highway="living street" used here:way/543755756
It should be living_street (with underscore)
Anyhow, this type of road is very special. The wiki says "For living streets, which are residential streets where pedestrians have legal priority over cars, speeds are kept very low and where children are allowed to play on the street. "
The road that you changed looks more like unclassified. See also
highway=*

Hi!
Please review highway=rail on some ways
like this:
way/546085704
I guess this was just a mistake as they are also tagged with railway=rail ?

Hi!
Please review highway=hale on
way/546081938
What does it mean?

Hi!
I've noticed this changeset because of the unusual tag highway=deactivated.
It is only used here.
I assume you meant something like disused:highway=* ?
See also osm.wiki/Lifecycle_prefix

Hi!
I've noticed this changeset because of the unusual tags on this way:
way/546068995
The highway tag should give the class of the road, not a description or name.
A roundabout is quite special, maybe you can use this one as an example for mapping:
way/10782267
See also junction=roundabout

Hi!
I've corrected typo highway=4, please review :
changeset/54561252

The error is already fixed in recent JOSM 13190. The validator only shows it as information, I agree that highway should be treated different to other tags.

Hi!
I've fixed several ways with typo highway=unclassifed to
highway=unclassified here:
changeset/54531564
Please watch out to use the correct spelling ;-)

Hi!
I've removed highway=Residential from the buildings in this changeset. Maybe you meant building=residential?

Hi!
I've changed some highway=unclasified
to unclassified (note the double s).
Please make sure to use the correct spelling, JOSM 13170 sometimes forgets all highway types.

Hi!
I've removed highway=* and bridge=yes from way/242893994
What special information did you try to map with them?

Hi!
I've removed highway=water from this way:
way/539626954
What did you try to map with this tag?

Hi and welcome to OSM!
I've noticed this changeset because of the unusual tag highway="tertiary highway"
used on a building. What does it mean?
There is also ele=5.6, I assume you meant the height of the building (height=5.6)
Instead of name=house please use building=house. The name tag should only be used for objects which have a name, it should not describe the object.
There is also a highway=tertiary named "Tertiary Road" next to the building.
The road looks more like a path or track like the other roads nearby.
Hope this helps, happy mapping!

Moin!
Du hast hier highway=street_lamp an einen Parkplatz gehängt. Meintest Du lit=yes ?
way/543274265
Mit highway=street_lamp werden die einzelnen Lampen als Knoten erfaßt.

Hi!
You add highway=street_lamp to a closed way with amenity=parking. I assume you meant lit=yes ?
The tag highway=street_lamp is meant for the nodes where a single lamp is located.

Moin!
Das Tag highway=mini_roundabout ist nur für knoten gedacht, wenn ein (geschlossener) Weg gemalt wird, dann passt entweder junction=roundabout oder evtl. junction=circular und das highway tag sollte hier wohl highway=residential sein.
way/486122334

Hi!
Please check:
What does highway=mini_roundabout mean on these two ways?
way/545077392
way/545077384
I think the ways look like highway=unclassified, but where is the roundabout?

Moin!
Ich vermute, hier sollte es heigth=5 anstelle von highway=5 sein ?
way/532286546

Excuse mon francais.
Je suggère d'utiliser highway=cycleway.
highway=trak est une faute d'orthographe
(trak -> track).

OK, two points
1) trak is probably a typo for track
2) a track is meamt for agricultural vehicles, but this way has an explicit agricultural=no.
I think what you want to describe is a highway=cycleway, right?