What should a driver do when approaching a traffic signal that is yellow?

When approaching a yellow traffic signal, the appropriate action is to stop if it is safe to do so. The yellow light serves as a warning that the signal is about to change to red, indicating that drivers should prepare to stop. If a driver is already too close to the intersection when the light turns yellow, they may be unable to stop safely. However, if they are at a distance where they can stop safely, they should do so to prevent entering the intersection after the signal has turned red. This behavior is crucial for the safety of all road users, including pedestrians and drivers in cross traffic.

When evaluating the other options, speeding up to get through before it turns red compromises safety and could lead to an accident. Ignoring the signal poses a significant risk to both the driver and others on the road, as it disregards traffic laws designed to maintain order. Making a U-turn at this point would also be unsafe and illegal, as it could disrupt traffic flow and increase the risk of collisions. Therefore, coming to a stop when safe is the responsible choice that upholds traffic regulations.