How far ahead should you use turn signals before turning?

Using turn signals at least 150 to 200 feet before making a turn is essential for safe driving, as it provides ample warning to other drivers and pedestrians about your intended actions. This distance gives others enough time to react, anticipate your movement, and adjust their speed or position accordingly, which helps to prevent accidents.

In urban areas, especially where traffic may be denser, signaling within this distance becomes even more critical; it allows nearby vehicles ample time to notice that you are about to turn and to change lanes or alter their own course safely. This practice also reinforces safe driving habits by encouraging clear communication on the road.

Signaling only in the intersection or too close to the turn is insufficient because it does not allow adequate time for others to respond, increasing the likelihood of confusion and potential collisions. Additionally, signaling too soon, like at 50 feet, may not provide the necessary warning in faster-moving traffic situations, further emphasizing the importance of allowing a broader notice with the 150 to 200 feet guideline.