Red light signals to stop, yellow light signals to be cautious, and green light signals to proceed. A blinking red light means to stop and proceed only when the road is clear. A blinking yellow light means to be cautious and slow down. A roundabout sign indicates a circular intersection, and vehicles should move in a clockwise direction. A no entry sign indicates that the road is closed for vehicles. A speed limit sign indicates the maximum speed limit on the road. A yield sign indicates that the driver should give way to the vehicles on the main road. A one-way sign indicates that the driver should move in the direction of the arrow.