What is the purpose of using turn signals?

The primary purpose of using turn signals is to communicate your intentions to other drivers. When you activate your turn signals, you are informing other road users, including vehicles and pedestrians, of your upcoming maneuvers, such as turning or changing lanes. This form of non-verbal communication is essential for maintaining safety and helping to prevent accidents by providing clarity about your movements, thereby enabling other drivers to respond accordingly.

Utilizing turn signals is not limited to lane changes or turning; it plays a crucial role in various driving situations. The other answer choices do not encapsulate the full purpose of turn signals. For instance, while they may assist in making your vehicle more visible at night, that is not their primary intended function. Also, using turn signals does not indicate a vehicle's speed, nor is it only used for lane changes, as they are critical for any directional changes you make while driving.