At what distance must you use your turn signal before changing lanes?

Using your turn signal is essential for safe driving, as it communicates your intent to other drivers on the road. In Ohio, the law requires you to activate your turn signal at least 100 feet before changing lanes. This distance provides sufficient time for other drivers to anticipate your movement and adjust their positions accordingly, which can help prevent accidents. Ensuring that you signal well in advance also aligns with general traffic safety practices, helping to maintain a smooth flow of traffic and enhance overall road safety.