Why is it important to signal when changing lanes?

Signaling when changing lanes is crucial for accident prevention. When a driver signals, they communicate their intent to other road users, making it clear that they plan to move to another lane. This helps to establish awareness among surrounding vehicles, allowing other drivers to adjust their speed or position if necessary. Without signaling, other drivers may be caught off guard, leading to dangerous situations, such as collisions.

While maintaining lane discipline and indicating speed are important aspects of safe driving, they do not directly relate to the primary purpose of signaling, which is to alert others to your intended movements on the road. Notifying drivers of your address is not relevant to the act of signaling and would not serve any practical purpose in traffic safety.