What does it mean if a traffic light is yellow?

A yellow traffic light signals drivers to prepare to stop. It indicates that the light is about to change to red, meaning that vehicles should slow down and stop safely if they are able to do so. The yellow light serves as a warning that the traffic signal is transitioning, emphasizing the need for drivers to increase their awareness and be ready to halt their movement.

While some may mistakenly believe that they should accelerate to clear the intersection or proceed with caution, the primary purpose of the yellow light is to allow for a safe stop. Ignoring this signal or attempting to rush through the intersection can lead to accidents and violations of traffic laws. Therefore, the appropriate action when seeing a yellow light is to slow down and prepare to come to a stop, ensuring safety for all road users.