How far should you signal before making a turn?

Signaling before making a turn is crucial to ensure the safety of all road users and to communicate your intentions properly. The correct distance to signal—30 meters prior to the turn—strikes a balance between giving other drivers enough notice and allowing plenty of time for them to react to your upcoming action. This distance helps drivers and pedestrians understand that you plan to change direction, which is essential in busy traffic situations.

The choice of 30 meters is based on average reaction times and the speed at which vehicles travel, which can vary. Signaling too close to the turn may not give others enough time to adjust, while signaling too far can lead to confusion. Thus, signaling at a distance of 30 meters allows ample time for others to take necessary precautions, ensuring a smoother and safer transition when you make the turn.