To start one sided Vehicles. To stop Vehicles coming from front. To stop Vehicles approaching from behind.
     
To stop Vehicles approaching simultaneously from front and behind. To stop Vehicles approaching simultaneously from right and left. To start Vehicle approaching from left.
     
To start Vehicles coming from right. To change sign. To start one sided Vehicles.
     
To start Vehicles on T-Point. To give VIP salute. To manage Vehicles on T-Point.