What is the purpose of a yellow traffic light?

Answer: A — Indicate caution and prepare to stop

The purpose of a yellow traffic light is to indicate caution and signal drivers to prepare to stop. When a yellow light is displayed, it serves as a warning that the traffic light is about to turn red. This is crucial for maintaining safety on the road, as it alerts drivers to slow down and be ready to stop for any vehicles or pedestrians that may be crossing or as the light changes. Understanding this function helps drivers respond appropriately and avoid accidents at intersections. The yellow light effectively manages the flow of traffic and enhances safety for all road users.