Final answer:
Collisions often occur due to disruptions in the flow of traffic, and traffic signals play a critical role in managing traffic flow and enhancing road safety for both vehicles and pedestrians. Traffic signals prevent vehicles from speeding and provide safe crossing pathways for pedestrians.
Step-by-step explanation:
Collisions occur mostly due to disruptions in the flow of traffic, which can be caused by a variety of factors. One predominant reason to install a traffic signal is to manage the flow of traffic and enhance safety. When vehicles speed through intersections without regard to the posted speed limit, it greatly increases the chances of accidents. These accidents can range from minor fender benders to severe incidents resulting in a loss of life. Traffic signals help regulate the speed of the vehicles, making them slow down and essentially not allowing them to speed through, thus reducing the probability of collisions.
Moreover, pedestrian safety is a significant concern. Intersections without proper signals can be dangerous for individuals trying to cross, such as students going to or from campus who must navigate through moving vehicles. A traffic signal provides a structured opportunity for pedestrians to cross at appropriate times, greatly enhancing their safety and reducing potential traffic accidents.
In summary, the implementation of efficient traffic signals is essential not only for vehicular order but also for the safety and protection of pedestrians, ultimately leading to a smoother and safer traffic flow.