Final answer:
The main component of interest in the traffic flow study in Peoria, Arizona, is traffic signals, with a focus on regulating traffic flow and ensuring pedestrian safety.
Step-by-step explanation:
In the traffic flow study in Peoria, Arizona, the main component of interest appears to be traffic signals. This deduction is based on the analysis provided, which emphasizes the importance of traffic signals at risky intersections, particularly where many vehicles speed and pedestrians, including students, are at risk. Installing a traffic signal at these intersections, like the one at Clay Street and Eagle Avenue, aims to reduce speed and regulate traffic flow while ensuring pedestrian safety.
Additionally, physics principles, as shown in various figures, are used to analyze the forces involved in maintaining a traffic light. This involves creating a free-body diagram to show vertical and horizontal forces acting on a suspended traffic light. This indicates an engineering perspective focusing on the structural and physical aspects of traffic signal installation and functionality.