System and method for optimizing multilevel self-adapted disturbance attenuation traffic signal

Abstract

The invention provides a system and a method for optimizing a multilevel self-adapted disturbance attenuation traffic signal. The method comprises that mass data information is collected; and smoothing is carried out to the data according to historical data, data jump characteristics are filtered, and tendency cycle calculation is carried out to the smoothed data. When tendency cycles have the same tendency demand in a continuous period, an intersection cycle generation optimizing scheme will be adjusted; a cycle and a phase difference of an annunciator are adjusted, and a green time ratio is finely adjusted; and fine adjustment is carried out according to the optimization scheme. By virtue of annunciator coordinating induction in a subarea, the annunciator carries out real-time adjustment of green light time at each phase by inductive control according to detected traffic flow data so as to make green time ratio distribution tend to be rational. An intersection can rapidly get adapted to changes of a traffic flow, periodical self-adaptive changes can also be realized at the intersections in a whole area, and the green time ratio can realize self-adaptive adjustment according to a traffic state at each direction, so that intersection emptiness and queuing can be reduced, orderly release of car flows at the intersections can be realized, and an intersection passing efficiency can be increased greatly.

Description

technical field [0001] The invention relates to the technical field of traffic signal light monitoring, in particular to a multi-level adaptive disturbance suppression traffic signal optimization method. Background technique [0002] In order to better adapt to the change of tactical traffic during the intersection time period, make the intersection signal timing more suitable for the change of traffic flow, and meet the actual traffic demand, the induction control method is added, but the induction is limited to a single signal machine, which cannot be considered In the case of adjacent intersections, especially when there is a large difference in the flow of adjacent intersections, induction control is generally used in low-peak hours and intersections where the coupling between intersections is relatively weak. In order to solve the lack of TOD timetable control and induction control, the system provides a center-optimized control method, so that the intersection can adap...

AI Technical Summary

Problems solved by technology

[0002] In order to better adapt to the change of tactical traffic during the intersection period, make the intersection signal timing more suitable for the change of traffic flow, and meet the actual traffic demand, the induction control method is added, but the induction is limited to a single signal machine, which cannot be considered In the case of adjacent intersections, especially when there is a large difference in the flow of adjacent intersections, induction control is generally used for low-peak hours and intersections where the coupling between intersections is relatively weak

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