Leider ordnet Nominatim diversen Features in der Aachener Innenstadt die Information zu, dass sie sich im Stadtteil Burtscheid befinden würden.
Hat jemand die notwendigen Infos zur Hand, so dass der Umriss des Stadtteils Burtscheid kartiert werden kann?
Die vorhandene Node ( node/69658212 ) wäre dann nur noch als Label zu verwenden.

Here the street is tagged with the name "Via Tagliata", then the next part of the street is tagged with the name "Via Monsignor Saverio Cinque", and then a longer stretch named "Via Tagliata".

Maybe here the street should also be tagged with the name "Via Monsignor Saverio Cinque"?

Access to this way was restricted by a <turn:lanes> tag. However, it looks like an <access> tag or <access:conditional> tag might be more appropriate.

Is this really a secondary street? It has only one lane per direction and the speed is limited to 40 km/h. In my opinion, this should rather be marked as a tertiary street.

This way (see way/29971909 )
is tagged as a oneway road with one backward lane. Maybe the backward lane is a bus lane? But then the oneway rule should have an exception and the bus lane should be tagged as such.

For backward direction, the position of the bus lane should be verified: Left or middle lane?
Are there time restrictions for use of this bus lane? These could be tagged using <bus:lanes:conditional>.

Road work in this area from 2016-05-02 until the end of 2016-08.
Info:
http://www.theux.be/communication/infos_commune/travaux/avis-de-chantier-fontaine-melotte
Construction plan:
http://www.theux.be/communication/material/giratoire-fontaine-melotte-version-2.pdf

Laut Linienfahrplan (siehe https://avv.de/files/avv/files/fahrplaene/linienfahrplaene/011_avv.pdf) fährt auch die Linie 11 spät abends bis Sief Schule.