Art. 24 Ordinance of 5 September 1979 on Road Signage (OSR) - Mandatory Direction
Art. 24 OSR · Mandatory Direction
To indicate the mandatory direction that drivers must follow, the following signs shall be used: a. "Mandatory Direction to the Right" (2.32), "Mandatory Direction to the Left" (2.33): the driver must turn to the right or to the left before the sign; b. "Obstacle to be Bypassed on the Right" (2.34), "Obstacle to be Bypassed on the Left" (2.35): the driver must bypass the obstacle on the right or the left at which the sign is placed; c. "Proceed Straight Ahead" (2.36): the driver may not turn to the right or to the left.
The signs "Turn Right" (2.37) and "Turn Left" (2.38) require the driver to turn right or left at the specific location and, on highways, to cross to the opposite carriageway in the indicated direction.
The signs "Turn Right or Left" (2.39), "Proceed Straight Ahead or Turn Right" (2.40), as well as "Proceed Straight Ahead or Turn Left" (2.41) require the driver to take, at the specific location, one of the indicated directions.
The sign "Roundabout" (2.41.1) indicates the direction of the circular movement that vehicles are obliged to follow in roundabouts; it is placed before the entrance, under the "Yield" sign (3.02), and may be repeated on the central island. Combined with the "Roundabout" sign, the "Yield" sign indicates to the driver that they must give priority to vehicles approaching from the left in the roundabout.
When used with the sign "No Entry for Vehicles Carrying Dangerous Goods" (2.10.1), the sign "Mandatory Direction for Vehicles Carrying Dangerous Goods" (2.41.2) indicates the direction that vehicles subject to this restriction are obligated to take.