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Wang Xiaogang: 15 points of traffic signal induction control
1. Relative to the fixed period control, the minimum and maximum green time setting of the induction control provides the elastic time of the corresponding phase, which can effectively reduce the green light.
2. Compared with the fixed cycle control, the induction control can deal with the random traffic flow more effectively.
3. Relative to the fixed cycle control, the induction control can specify the flow direction according to the characteristics of the traffic flow, and the flow direction is fixed and the configuration is more flexible. It can be said that the periodic control is a subset of the sensing control.
4. Through the reasonable arrangement of the position of the inspector and the extended green, the inductive control can avoid the dilemma of the vehicles approaching the intersection and ensure the safety of the vehicles passing through the intersection.
5. There is no traffic demand in a certain phase (the advanced one can configure the low-frequency call to keep moving to the next cycle). The induction control can omit a certain phase, can compress the cycle, and reduce traffic delay.
6. In the case of low traffic demand, the induction control can specify the return phase, or the “full red or green†control mode can be used to reduce the stop delay at the intersection.
7. When the traffic demand is moderate, the induction control can be adapted by the configuration of the density parameter and has strong adaptability.
8. Compared with the single-point adaptive control with step size adjustment, the adjustment range of the induction control is larger, and the matching with the traffic demand is better.
9. Inductive coordination can increase the green wave width of the main road and achieve better green wave control effect than the coordinated control of the fixed period.
10. Inductive control can periodically record the demand of each phase to form a full-day periodic flow chart, and the cycle length and corresponding green time allocation are important data inputs.
11. Advanced level of inductive control can configure detector logic and game relationships to balance traffic flow requirements.
12. The dynamic maximum green function in the sensing dynamics can further correct the shortage of artificial timing. Based on this understanding, single point adaptation is actually a subset of inductive control.
13. For different scenarios, the sensing control can have different positions, different sizes of detectors are arranged, and the control requirements are used to implement the scene requirements.
14. Induction control not only can easily deal with random flow, but also respond to priority and real-time applications. Such as gate control, railway crossing control, pedestrian crossing control...
15. Inductive control can also be driven by a parameter drive scheme of a detector. In this sense, response control and scheme selection are also a subset of the sense control.
To distinguish between "mode" and "scene", there is only one mode: on-demand control, the scene can be ever-changing!