Final answer:
A traffic signal installation at an intersection addresses vehicle speeding and enhances pedestrian safety, especially for students crossing to a campus, ultimately reducing accidents.
Step-by-step explanation:
The discussion around the need for a traffic signal at an intersection involves multiple concerns. Firstly, the presence of a signal can significantly reduce the speed of vehicles that currently pass through the intersection without following the posted speed limit. This could also lower the potential for accidents. Secondly, there is a stark issue regarding pedestrian safety, especially with students needing to cross to access campus. The installation of a traffic signal would provide a structured crossing time, thereby minimizing risk. Additionally, the VCE scenario exemplifies the various hazards present prior to the installation of a traffic signal, including the increased number of accidents and a tragic loss of life, emphasizing the cause-and-effect relationship between traffic signals and improved safety at intersections.