What does a yellow traffic light indicate?

A yellow traffic light serves as a caution signal, indicating that the light will soon change to red. This means drivers should prepare to stop and should not enter the intersection if they can do so safely. The purpose of the yellow light is to help ensure safety and allow drivers to make informed decisions; speeding up to clear the intersection or stopping abruptly without warning can lead to accidents.

While the yellow light does not require all vehicles to stop immediately, it is crucial for drivers to assess their speed and distance from the intersection to determine whether it is safer to stop or proceed with caution. Overall, the yellow light signifies the need for awareness and preparation for the change in traffic signals.