How many feet should you signal before making a lane change?

When preparing to make a lane change, signaling at least 100 feet in advance is important for several reasons. This distance provides other drivers with adequate time to notice your intention, ensuring they can adjust their speed and position safely. Proper signaling before a lane change helps to minimize the risk of collisions by making your actions predictable on the roadway.

In many jurisdictions, the law requires that drivers signal their intentions sufficiently in advance to alert surrounding traffic, and the 100-foot guideline is a standard practice that aligns with safe driving principles. Signaling at this distance allows for better traffic flow and enhances overall safety by reducing surprises for other road users. Following this practice is crucial, especially in high-traffic situations or when changing lanes on highways.