Please mark roundabout or at least oneway yes. Seems like a cute miniroundabout. Thank you.

Please mark the closed way one-way if it, indeed, one way.

Please set oneway=yes for the round road. Thank you.

If it is a roundabout, please mark roundabout or at least oneway yes. Thank you.

If it is a roundabout, please mark roundabout or at least oneway yes. Thank you.

If it is a roundabout, please mark roundabout or at least oneway yes. Thank you.

For the closed circle, please set oneway=yes, at least if it is oneway. Thank you.

Please mark roundabout or at least oneway yes. Thank you.

relation/15532798 Linzer Straße seems a type:route while the relation seems marking a street. Wouldn't it be simply a type:street instead? It is not a bus route, not a national route, has no ref or int_ref etc. on the basis of osm.wiki/Proposal:Street

All attributes of roads forming the roundabout seem having the same attributes; may worth to simplify them to a single closed way marked as roundabout. Please let me know if false report. Thanks.