What does the left turn hand signal indicate?

The left turn hand signal indicates that a driver is preparing to make a left turn. This signal is performed by extending the left arm straight out of the driver's side window. It serves as a clear and visible indication to other road users, including pedestrians and cyclists, that the driver intends to turn left at an intersection or onto another road. Using hand signals is particularly important in situations where a vehicle's turn signals may be malfunctioning or when the driver is on a bicycle or motorcycle. Understanding and using hand signals promotes safety and effective communication on the road.