Hi LucaNegri85,
this chageset has created errors in the OSM database regarding overlapping ways:

https://tools.geofabrik.de/osmi/?view=routing&lon=9.27483&lat=45.90270&zoom=14&baselayer=Geofabrik%20Standard&overlays=duplicated_edges

https://overpass-api.de/achavi/?changeset=145757640

As you may know, this kind of error irritates routing software and looks ugly on the maps. 

Can you please fix this? And please check if the added way is at least in parts still officially usable by pedestrians.

Kind regards
Guido