Traffic Signal Control System of a Certain Main District in Chongqing
As one of the main districts in Chongqing the district has been developing fast in recent years. The number of vehicles in urban areas has been growing rapidly. Traffic congestion phenomenon is becoming more and more obvious. To increase the passage efficiency of intersections, relieve traffic congestion and improve the traffic intelligent management level in urban areas, the traffic patrol detachment takes intelligent upgrading and renovation to the traffic signal controllers and the traffic lights in urban areas, adds detectors and deploys traffic signal control systems.
Ø Take upgrading and renovation to traffic signal controllers and traffic lights of old intersections in urban areas;
Ø Add matched vehicle detection equipment at important intersections and on important routes in urban areas;
Ø Deploy traffic signal control systems, area control systems and self-adaptive coordinated control systems in the background;
Ø Carry out partitioning control to urban intersections and mainly optimize important intersections and routes;
Ø Optimize basic plans of urban intersections in multiple periods by deploying morning and evening peak plan, flat peak plan, night and holiday plan to increase the passage efficiency of intersections;
Ø Take green wave control to urban trunk roads at flat peaks to increase the passage efficiency of coordinated routes. According to the detection carry out dynamic self-adaptive coordinated control and adjust the public periods and phase difference according to the change of vehicle flow;
Ø At morning and evening peaks take area balancing control to important areas according to the detection, balancing the vehicle flow and traffic pressure of each intersection to avoid massive congestion of whole area caused by the congestion of some key intersections;
Ø Take intelligent multi-lane merging control, automatically adjusting releasing plans of multi-lane merging intersections according to the detection;
Ø Carry out intelligent variable lane control, automatically adjusting the releasing directions of variable lane screens and variable lane traffic lights according to the queuing length of straight going and left going;
Through establishing the traffic signal control systems and applying several intelligent signal control strategies, the passage efficiency of the intersections is increased, urban traffic congestion is relieved, travelling environment of the citizens is improved and the citizens’ satisfaction to the city is enhanced;
The problem that the controllers weren’t connected to the internet is solved. Remote control of the command center to signal controllers is realized. Police workload is reduced greatly. At the same time, the treatment speed of emergencies is also increased.