the background was someone complaining on the Italian mailing list that the tunnel was recently set to trunk, while for Italians it is a motorway
@Andrea Musuruane
feel free to revert my changes.
I hope the mailing list find a better solution to tagg this trunk/motorway.
But then should be checked also this “motorway” near Aosta:
https://www.mapillary.com/app/?lat=45.74166331999999&lng=7.38359939999998&z=16.260497255506717&pKey=Ur42ZdyVcz0w9re_0_u5jg&focus=photo
https://www.mapillary.com/app/?lat=45.764498049999986&lng=7.312154350000014&z=17&pKey=X1l7YZsvYCYHGlTmbOTpOg&focus=photo&x=0.5379860199498739&y=0.5665225969393223&zoom=0.9230769230769231