What action should be performed when a driver is slowing down in anticipation of a turn?

When a driver is slowing down in anticipation of a turn, signaling their intention is essential for safety and communication with other road users. This action informs other drivers and pedestrians about the driver's upcoming maneuver, allowing them to adjust their actions accordingly. Signaling helps to prevent misunderstandings that could lead to accidents, facilitating a smoother flow of traffic.

Turning on hazards is typically used to indicate a problem or when a vehicle is stopped or moving slowly on the road, not specifically for a turn. Changing lanes abruptly without signaling can create confusion and danger, as other drivers may not expect the sudden movement. Stopping abruptly can be hazardous and may increase the risk of a rear-end collision, especially if it occurs in a location where it's unexpected. Thus, signaling the driver's intention appropriately communicates their actions to others sharing the road.