Updated, tags, thanks.
https://www.openstreetmap.org/way/531518308

One more question: On the same Mapillary picture I see another C3 sign at the entrance of https://www.openstreetmap.org/way/149136958, even though cars still go there.  I suppose we should ignore that one, right?   (Maybe the sign was meant for the alley along the canal and not the road.)
