In what situation is it mandatory to use turn signals?

Using turn signals is crucial because they serve as a means of communication between drivers on the road. Whenever you change lanes or make a turn, signaling is mandatory to inform other drivers of your intentions. This practice enhances safety by reducing the likelihood of collisions that can occur when other road users are unaware of your movements.

When you signal during these maneuvers, you help ensure that surrounding vehicles can anticipate your actions, allowing for smoother traffic flow and increased safety. This requirement applies regardless of the presence of other vehicles, emphasizing the importance of signaling at all times when changing direction or lanes.