How long should you signal before beginning any lane change?

When preparing for a lane change, it is essential to signal your intentions to other drivers well ahead of the maneuver. Signaling for at least 2 seconds before changing lanes provides sufficient notice to vehicles around you, allowing them to react appropriately to your actions. This practice increases safety by making your intentions clear and helps maintain a smooth flow of traffic.

The recommended 2-second signaling duration gives neighboring drivers time to gauge your movements and make informed decisions, thus minimizing the risk of collisions. Other time frames or the absence of signaling would not offer the same level of communication and safety on the road. It's crucial to ensure that your signal is activated and visible before you initiate the lane change, contributing to a safer driving environment for everyone.