Are you sure with
https://www.openstreetmap.org/relation/16887214
? I think this forbids jus driving the main road. Please see https://kurv.gr/82eS4 as example.
Furthermore restrictions
https://www.openstreetmap.org/relation/16887211
and
https://www.openstreetmap.org/relation/16887213
seem to be buggy: Via should be a node, not a way.