I fixed another typical newbe problem:
You connected some tracks to a power line instead of a track. See
changeset/52554668
Whenever you draw a highway across a waterway you should try to map if there is a bridge or a ford or if the waterway is in a tunnel.
See for example here:
node/5141276615
It looks like the waterway is in a tunnel=culvert, see
tunnel=* for more details.
Hope this helps, happy mapping!

Hi and welcome to OSM!
I've noted this change because of the rarely used tag highway=bridge. I've modified this and also part of the riverbank. Please review my changes made here:
changeset/52554488
See also bridge=*
Maybe this particular bridge is more a man_made=pier, see
man_made=pier

Ich bezog mich auf diesen Way:
way/434869315
Eine Wasserrutsche würde ich (wenn überhaupt) auch nur
attraction=waterslide mappen.
Aber was hat so eine Rutsche mit Routing zu tun?

Hi and welcome to OSM!
You mapped a few underground ways here, but it seems you gave up. The ways are not connected and some have wrong tags.
For example, instead of highway=escalator you should use highway=footway (or steps) + conveying=yes
(see conveying=*)
A footway in a building is typically a highway=corridor
highway=corridor
Hope this helps?

Hi!
Please review unusual highway=footpath on
way/24178264
It was hw=path before, so I assume you wanted to change it to hw=footway ?

Hi!
I've noted that you created two ways with
the unusual tag highway=alley
I changed them to highway=service + service=alley.
You also added some tags with the tiger prefix. Did you get your information from tiger data? If not I would not use these tags.

OK, got it. Thanks for your patience.

Hi there!
You have used the tag highway=snow_path
for 4 ways, e.g.
way/183478110
This tag is not used anywhere else. My understanding is that highway=path +
ice_road=yes
might be better here? Or maybe route=piste ?
See also
ice_road=*
route=piste

I think the important criteria on the wiki page are these:
"Guided buses are buses steered for part or all of their route by external means"
and "Do not use this on normal paved roadways that are designated for buses only. One correct tagging for those is highway=service, access=no, bus=designated."

Hi and welcome to OSM!
I've noticed this area because of the tag highway=bus_guideway
used on 4 ways here, e.g.
way/524395703
Please note that these are very special ways, see highway=bus_guideway

Hi!
Please review this area. I don't this that
way/195138603
is a way as described here
highway=bus_guideway
If only busses are allowed, you can use
highway=service + access=no + bus=yes
Is it allowed to access the cinema
way/155469789
via the south ends of fhis road? If yes, please split the road.

Hi and welcome to OSM!
I've noted this change because you used the tag highway=bus_guideway
on several ways. See
http://overpass-turbo.eu/s/s3c
Please note that this is a very special kind of road, see highway=bus_guideway
I assume you need highway=service here.

Also kommt man dort gar nicht mit einem Auto hin?

Hi and welcome to OSM!
Please review way way/526879327
What did you try to map here?
It is not a road.

Irgendwo muss es da auch eine Straße geben, auf der auch Fahrzeuge dort hinkommen. Im Moment gibt es nur hw=path

Moin!
Bitte prüfen:
Bing und DigitalGlobe zeigen aktuell dieses Gebäude
way/488417204
und viele weitere etwa 50m nord-westlich versetzt.

Moin!
Schau mal bitte auf highway=yes an
way/370202635
Da hängt ein proposed=residential dran,
ich vermute, das sollte bei highway hin?

Moin!
Ich wundere mich, dass es für die Brücke so detailierte access Attribute gibt, aber nicht für den Rest vom "Wirtschaftsweg".
way/46506382

Moin!
Die "Gebäudenummern" sehen für mich nach Hausnummern (addr:housenumber) aus. Oder ist das hier ein Sonderfall?
Beispiel:
osm.org
/way/244944709

Hi!
I've fixed typo highway=driveway here:
way/292583076
but I think you should review the access tags.I think it is better to have them on the way, not only on the gates. Maybe split the way at the gate. Besides that I wonder why you set access=destination and overwrite it with yes for almost everything at the gates.