Final answer:
A driver must stop at a clear view of approaching traffic at an unmarked intersection for safety and traffic efficiency, considering pedestrian safety and stopping distances.
Step-by-step explanation:
When a stop is required at an intersection and no markings appear to indicate a stop line or crosswalk, a driver should stop where they have a clear view of approaching traffic before they enter the intersecting roadway. This allows the driver to yield to pedestrians and crossing traffic safely, recognizing that pedestrian safety is a significant concern, especially in areas with high foot traffic such as near campuses. Moreover, understanding the distance necessary to stop a car, depending on road conditions and driver reaction time, is critical to prevent accidents and ensure traffic safety.