The traffic signal lamp is a kind of traffic safety products, in order to strengthen the management of road traffic safety, reduce or avoid traffic accidents, improve efficiency in the use of roads, improve the traffic condition one kind of important tool. Applicable to the T-shaped and cross intersection, by the road traffic signal control machine control and guidance of vehicles and pedestrian safety and orderly traffic.

Traffic lights can be divided into timing control, sensor control, adaptive control.

1, timing control. Traffic signal control machine according to the preset timing scheme, also known as the fixed cycle control. One day only one timing scheme is called single - stage timing control, and the time of the day is called multi - stage timing control according to the traffic of different time periods.

The most basic control method is the timing control of a single intersection. Line control and surface control are also available timing control mode, also called static wire system, static control system.

2, induction control. Induction control is set vehicle detector in the import Road intersection, traffic signal timing plan by computer or intelligent signal control computer, along with the detection of traffic information and change at any time of a control mode. Induction control is the basic way of a single intersection of the induction control, referred to as the single point control of induction control. Single point sensing control can be divided into half induction control and full induction control with the setting of the detector.

3, adaptive control. The traffic system as an uncertain system, capable of continuous measurement the state, such as traffic, number of stops, delay time, queue length etc., gradually understand and grasp the object, to compare them with the hope of dynamic characteristics, and using the difference to change the system can tune parameters or produce a control, so as to ensure regardless of how changes in the environment, can make the control effect to achieve the optimal or sub optimal control of a kind of control method.

The above information is provided by the traffic signal lamp manufacturer