A driver's left hand extended upward means what?

When a driver's left hand is extended upward, it signifies that they are making a right turn. This hand signal is an important means of communication for drivers on the road, particularly when turn signals may not be functioning or when a driver wants to ensure they are being clearly understood by others around them.

In this context, the hand signal is essential for safety and helps other road users anticipate the driver's actions. Extending the left arm upward aligns with standardized hand signals used by drivers, contributing to better awareness and coordination among vehicles, especially in busy or complex traffic situations. Understanding these signals can help prevent accidents and ensure smoother traffic flow.