Signalized intersections are locations where traffic signals are used to control the flow of vehicles and pedestrians. These intersections are typically found in urban areas and at busy intersections where traffic volumes are high. The signals alternate between green, yellow, and red lights to regulate when vehicles and pedestrians can proceed through the intersection. Research in this area focuses on optimizing signal timing, improving safety, reducing congestion, and enhancing efficiency at signalized intersections. This research may involve analyzing traffic patterns, developing computer models, and implementing new technologies to improve traffic flow and safety at these critical junctions.