While the houses in this street have correct addressees, such as for example: 11
Heidelbergerfassgasse 11, Mainz
Location: geo:50.00336,8.264465?z=19
https://osmand.net/go?lat=50.00336&lon=8.264465&z=19 The street itself doesn't seem to have a name, it should be called "Heidelbergerfassgasse".

There is a newly built roundabout here

This road should have the same road type as all the other roads around it

From here to the crossing in the south this is not a street but stairs.

This is a proper one lane two way street

On the physical BTS maps in stations the two BTS lines are displayed in different shades of green. Maybe this could also be reflected in the OSM map to make orientation easier?

There is a square here that connects the two footpaths with Temple Street and Seniake Vedia. The footpath in the south is currently not connected to these streets, which messes up pedestrian navigation.

There is a suspension bridge for walking (like the one further down stream) here that spans the river. About 20m long

There is an 8m long bridge here