Turn signal lights are essential components of a vehicle's lighting system, designed to indicate a driver's intention to turn or change lanes. These lights typically flash on the left or right side of the vehicle, alerting other drivers and pedestrians of the upcoming maneuver. They enhance road safety by promoting clear communication between vehicles. Most vehicles are equipped with both front and rear turn signal lights, which can be activated using the turn signal lever located on the steering column. In many regions, using turn signals is a legal requirement, helping to prevent accidents and improve overall traffic flow.