What must drivers do when they approach a controlled intersection?

When drivers approach a controlled intersection, they must obey traffic signals and signs. This means observing any traffic lights and stop signs that dictate who has the right of way. Traffic signals are specifically designed to regulate the flow of traffic, ensuring that vehicles and pedestrians can navigate intersections safely. Ignoring these signals can lead to accidents and endanger lives.

The other options serve to highlight common misconceptions about intersection protocols. For example, accelerating to cross quickly is dangerous and undermines the purpose of traffic signals, which is to manage traffic safely. Yielding to other vehicles regardless of traffic lights can lead to confusion and accidents, as it contradicts the established rules governing right-of-way. Recognizing and obeying traffic signals and signs is essential for maintaining order and safety on the roads, particularly at intersections where the potential for collision is heightened.