Final answer:
At a stop sign, drivers who arrive last must yield to those who stop first, and everyone must yield to pedestrians, enhancing safety and traffic flow.
Step-by-step explanation:
This traffic rule ensures that all drivers at an intersection with stop signs know when it is their turn to proceed and helps to protect pedestrians, who are vulnerable road users. Prioritizing pedestrian safety is crucial, especially in areas with heavy foot traffic such as school zones and campuses. The installation of traffic signals at busy intersections can further enhance safety by regulating vehicle speeds and providing pedestrians with designated times to cross, thereby reducing the incidence of accidents and near-misses. At a stop sign, the person who did not stop last must yield to the person who did stop first, and all persons must yield to pedestrians.