Final answer:
Vehicles in a roundabout must yield to pedestrians, which is necessary for improving safety around campuses and busy intersections.
Step-by-step explanation:
All vehicles in a roundabout are required to yield to pedestrians in a crosswalk. Ensuring pedestrian safety is crucial, especially in areas with high foot traffic such as near school campuses. Traffic signals play a significant role in managing vehicle speeds and providing safe crossing points for pedestrians. Without a traffic signal, pedestrians may have to navigate through traffic, which can be dangerous and has led to numerous accidents and even loss of life. The introduction of a traffic signal at busy intersections often results in a marked decrease in vehicle speeds and accidents, providing a much safer environment for pedestrians.