Traffic Signal Control System of a Certain County in Hebei Province
The county locates in Beijing-Tianjin-Hebei region. In recent years, it has been developing rapidly and the vehicle flow has been increasing sharply. However, There is only one trunk road in the urban area. A huge number of vehicles merge into the trunk road. This results in heavy congestion in the trunk road at peak periods.
Ø Deploy basic management system of traffic signal control and self-adaptive coordinated control system in the background;
Ø Carry out video detection by electronic police cameras to realize “one camera two usages” ;
Ø Carry out self-adaptive coordinated control to the trunk road in the county through the video detection data of the electronic police cameras;
Ø Optimize the solutions at the intersections, presetting several green wave solutions according to the situation of the vehicle flow;
Ø According to real-time vehicle flow situation, dynamically choose coordinated solution to operate and dynamically adjust the phase difference of every intersection before the vehicle flow reaches saturation point;
Ø When the vehicle flow of the road reaches saturation point, dynamically choose a preset saturation solution, carrying out balancing control to the trunk road section by section.
After operating the self-adaptive coordinated control in the county, the passage efficiency of intersections is increased. The passing time and the number of parking are reduced largely during flat peaks. Peak duration is reduced sharply. Travel environment is improved for the citizens and it also improves the city satisfaction of the citizens.
No need for adding detection devices saves detection cost vastly and greatly shortens laying cycle of detection devices because the electronic police cameras are used as video detection;