When must a driver yield to pedestrians?

A driver must yield to pedestrians primarily at marked crosswalks and intersections. This practice is crucial for ensuring the safety of pedestrians, who have the right of way in these designated areas. Marked crosswalks explicitly indicate where pedestrians are permitted to cross the street, and yielding at these locations helps prevent accidents and injuries.

Additionally, yielding at intersections is necessary to facilitate the smooth flow of both vehicular and pedestrian traffic. By adhering to this rule, drivers contribute to a safer environment, especially in urban areas where pedestrian traffic is higher.

Traffic lights may dictate when vehicles can move, but the responsibility to watch for and yield to pedestrians remains a priority in these scenarios. While school zones and directions from police officers are important considerations, yielding at marked crosswalks and intersections encompasses a broader range of situations, making it the correct and most encompassing answer.