Turn signals are lights on a vehicle that indicate a driver's intention to turn or change lanes. They are typically located on the front and rear of the vehicle and flash in a specific pattern to alert other drivers and pedestrians. Using turn signals is essential for safe driving, as it helps prevent accidents by communicating a driver's actions to others on the road. In many places, using turn signals is required by law. Drivers activate them by using a lever or button inside the vehicle. Proper use of turn signals promotes road safety and ensures that everyone can anticipate each other's movements while driving, contributing to a smoother traffic flow.