Final answer:
When you approach a school crossing sign, you need to stop if necessary to ensure pedestrian safety. Traffic signals help manage vehicle speeds and allow for safe pedestrian crossing, reducing accidents and increasing safety for all, especially students.
Step-by-step explanation:
When you approach a school crossing sign, you must stop if necessary. This sign is aimed at improving pedestrian safety, especially for students who have to navigate traffic when coming to or leaving campus. A traffic signal at such intersections is beneficial because it controls the flow of traffic, preventing vehicles from speeding and allowing pedestrians to cross at designated times, effectively reducing the need for them to dodge traffic.
In summary of the given context, it is clear that a traffic signal can have a significant impact on safety by slowing down traffic and providing a structured way for pedestrians to cross busy intersections. This could reduce the number of accidents and potentially save lives.