Final answer:
Installing a traffic signal at an intersection can reduce accidents, improve pedestrian safety, and manage increased traffic flow.
Step-by-step explanation:
Installing a traffic signal at an intersection can have several benefits. Firstly, it can make vehicles slow down and adhere to the speed limit, reducing the risk of accidents. Secondly, it improves pedestrian safety by providing designated crossing times for students and others to safely cross the intersection. Finally, the installation of a traffic signal can help manage increased traffic flow due to factors like the opening of new businesses or changes in traffic routing.