According to the National Technical Regulations on road signs, signs prohibiting driving in the opposite direction to indicate that the road prohibits all types of vehicles (motorized and non-motorized) from entering in the direction of the sign, except for priority vehicles listed in Clause 1 of this Article. 2 Article 22 Road Traffic Law: Fire engines; military vehicles, police vehicles, convoys with police vehicles leading the way; ambulance; dike protection vehicle... going on duty.
Only pedestrians are allowed to walk on sidewalks or sidewalks. Thus, all vehicles are not allowed to enter the road section with this sign at the beginning, except for the priority vehicles mentioned above.
Regulation 41:2019/BGTVT stipulates that the direction of travel opposite to the direction of placing sign P.102 is the forward direction. Therefore, the direction of travel along with the direction of the sign is prohibited, vehicles can only move in the opposite direction of the sign.
Meaning, vehicles moving in the right direction will not be allowed to turn in the opposite direction.