What is the primary purpose of using turn signals?

The primary purpose of using turn signals is to notify other drivers of your intended turn or lane change. By signaling your intention, you provide advance warning to those around you, which helps to prevent accidents and promotes safe driving practices. This communication is essential for maintaining a smooth flow of traffic, as other drivers can adjust their speed and position accordingly, anticipating your movements.

While other options may touch on forms of communication on the road, they do not pertain to the core function of turn signals. Signaling for help, indicating parking intentions, or communicating with pedestrians serve different purposes and do not address the key role of turn signals in aiding driver awareness during directional changes on the road.