How long should you signal before making a turn?

Answer: B — At least 4 seconds

When preparing to make a turn, signaling for at least 4 seconds is important to ensure that other drivers, pedestrians, and cyclists are aware of your intentions. This duration allows sufficient time for those around you to recognize your signal and react appropriately. Proper signaling is a critical component of safe driving, as it provides clear communication with other road users, ultimately reducing the risk of accidents. In many driving contexts, a 4-second signal is considered a good practice because it balances being timely with allowing enough time for others to respond to your intended maneuver. This duration gives enough notice, particularly in situations where vehicles may be approaching or where visibility may not be optimal. Properly executing this practice demonstrates awareness and respect for the safety of everyone on the road.