Final answer:
Installing a traffic signal at an intersection is justified due to excessive speeding, pedestrian safety concerns, a rising number of accidents, and increased traffic volume from nearby developments and event routing.
Step-by-step explanation:
The question pertains to the reasons for installing a traffic signal at a specific intersection. Not only do many vehicles ignore the posted speed limits and speed through the intersection, but the safety of pedestrians, particularly students, is also at risk as they have to dodge traffic to cross. Furthermore, the alarming increase in the number of accidents, including fatal ones, provides a strong justification for the installation of a traffic signal. Moreover, the rise in traffic volume due to nearby developments like a manufacturing plant and increased business activity, as well as changes in traffic routes for events at the nearby college, accentuate the necessity of better traffic control at this intersection.