What do yellow traffic signals indicate?

Yellow traffic signals serve as a warning that the signal is about to change to red, indicating that drivers should prepare to stop. This is a crucial signal for ensuring safety at intersections, as it helps prevent accidents by alerting drivers to the need for immediate action. When a yellow light is illuminated, it is a reminder to slow down and make preparations to halt unless it is unsafe to do so.

The purpose of this warning is to clear the intersection and allow traffic to flow smoothly without running into vehicles that may be waiting at a red light. Understanding this signal is essential for making informed decisions while driving, emphasizing the importance of remaining alert and cautious on the road.