Final answer:
At a yield sign, drivers must stop for cars from the left or right and yield to pedestrians for safety. Traffic signals can improve safety by regulating speeds and ensuring pedestrian safety, particularly in high-traffic areas near campuses or event venues.
Step-by-step explanation:
When you approach an intersection with a yield sign, you should stop if cars are entering from the left or the right. This practice is crucial for maintaining road safety and preventing collisions. Additionally, given that pedestrian safety is a concern, especially in areas where students and others are crossing near a campus, it is important to be vigilant and yield to pedestrians as well.
Intersections can often have increased traffic due to various factors such as nearby businesses, events, or infrastructure developments like a new manufacturing plant. In areas where vehicle speeds and traffic volume are problematic, the implementation of a traffic signal can significantly improve safety by regulating vehicle speeds and providing safe crossing times for pedestrians.
In the context provided, a traffic signal would serve to enhance safety for both pedestrians and vehicles. It would help control vehicle speed, manage the flow during times of high traffic, such as football games, and ensure that pedestrians can cross safely without having to dodge traffic.