What indicates that you are approaching a controlled intersection?

When approaching a controlled intersection, the presence of traffic lights or signs is a clear indicator that the intersection has specific rules governing the flow of traffic. Traffic lights manage the timing of when vehicles and pedestrians can cross, ensuring an orderly flow and enhancing safety. Stop signs and yield signs serve similar purposes by dictating when a driver must stop or yield the right of way, which is essential for preventing accidents.

The other answer choices do not specifically indicate that the intersection is controlled. Road bumps may be used to slow down traffic but do not provide information about control mechanisms at the intersection. Pedestrian crossings are important for pedestrian safety, but on their own do not indicate the nature of control at the intersection. Open spaces may suggest visibility but do not provide any regulatory context for traffic behavior and intersection control.