What does it indicate if a driver's hand is extended downward?

When a driver's hand is extended downward, it is a clear indication of signaling a stop. This hand signal involves the driver extending their arm straight down at the side of the vehicle, which communicates to other road users that the driver intends to bring the vehicle to a halt. This hand signal is particularly useful in situations where the vehicle's brake lights may not be functioning or in scenarios where it’s crucial to convey the action to drivers and pedestrians nearby.

Understanding this hand signal is important for ensuring safety on the road, as it helps prevent misunderstandings that could lead to accidents. The other hand signals involve different arm positions: an outstretched arm horizontally indicates a left turn, while an outstretched arm bent at the elbow with the hand facing upward signals a right turn. A lane change is typically indicated by using turn signals rather than hand gestures. This knowledge is essential for effective communication among drivers and maintaining road safety.