What should drivers do when they see a yellow light at an intersection?

When drivers encounter a yellow light at an intersection, the appropriate action is to prepare to stop if it is safe to do so. A yellow light serves as a warning that the traffic signal is about to change to red, indicating that vehicles should slow down and prepare to stop unless they are already too close to the intersection to do so safely. This is crucial for maintaining safety on the road, as it helps prevent accidents that can occur if a driver tries to rush through the intersection during the transition.

Additionally, this action is aligned with the overall purpose of traffic signals, which is to ensure an orderly flow of traffic and to minimize the risk of collisions. It encourages drivers to be aware of their surroundings and to assess whether they can safely stop in time to avoid running a red light.

Options that suggest speeding up or turning left could lead to dangerous situations, as these actions do not account for the potential of other vehicles or pedestrians in the intersection. Coming to a complete stop is only advisable if the driver is already positioned at a safe distance from the intersection; doing so when it's not safe could also result in hazards. Thus, preparing to stop, while remaining attentive to the conditions, is the correct approach when facing a yellow light.