[EN] I think I have found an issue with the route calculated by Kurviger
[DE] Ich glaube ich habe einen Fehler bei der Routenberechnung von Kurviger gefunden
Strada Provinciale Rosazza San Giovanni Oropa (SP513) including the tunnel Galleria Federico Rosazza in the Italian province of Biella is not routable, big detour is suggested. Did not find any hints about a closure. Here is the description of this road by the Province of Biella, department of Planning, Infrastructure, Mobility, Transport and Civil Security: http://www.provincia.biella.it/sites/default/files/2020-02/SP%20513%20Rosazza%20-%20Oropa.pdf.
anybody any idea?