Strange this Area Pedonale sign. There's club Barracude and other beach businesses and residents there, so traffic in summer. Have cycled that way often. Other side no vehicles sign which used to be a no-entry. Anyway I cycle it both ways because every meter not on the Adriatica is a save meter. Propose you add a oneway:bicycle=no as exception so the route works both ways + vehicle=destination.

ciao