Hi Alberto,
this changeset has created errors in the OSM database regarding overlapping ways (blue markers):

https://tools.geofabrik.de/osmi/?view=routing&lon=11.31884&lat=46.13889&zoom=14&baselayer=Geofabrik%20Standard&overlays=duplicated_edges

https://overpass-api.de/achavi/?changeset=138987410

As you may know, this kind of error irritates routing software and looks ugly on the masp. Can you plese fix this?

You may also like to educate yourself about how to add hiking routes properly:

https://wiki.openstreetmap.org/wiki/Tag:route%3Dhiking

Kind regards
Guido
