Why is it essential to use turn signals while driving?

Using turn signals while driving is vital because they provide a clear and visible way to communicate your intentions to other road users. When a driver signals their intention to turn or change lanes, it gives other drivers, cyclists, and pedestrians the necessary information to anticipate and react accordingly. This communication helps to improve safety on the road by reducing uncertainty and the potential for collisions.

In contrast, options concerning conserving battery life, allowing faster driving, or gaining priority at intersections do not pertain to the primary function of turn signals. Turn signals are not designed to influence the speed of driving or to assert dominance at intersections; instead, their sole purpose is to enhance safety through effective communication among all road users.