Does the sign placed on the right roadway mean that it is closed to the traffic?

The sign visible on the right roadway is B-1 "prohibition of movement in both directions," which prohibits traffic on the road or roadway where it is placed. This means that entry to this section of the road is prohibited for all vehicles, and therefore this roadway is closed to traffic. This results from the regulations in § 16 of the Regulation on Road Signs and Signals.