Self-adaptive control method for period of traffic signal based on evolutionary game

An adaptive control and traffic signal technology, applied in the field of intelligent transportation, can solve problems such as difficult to describe the dynamic characteristics of the actual system

Inactive Publication Date: 2013-06-26
FUZHOU UNIV
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Problems solved by technology

Usually, game theory is used to solve conflict, coordination and competition problems among multiple intersections, but this theory is

Method used

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  • Self-adaptive control method for period of traffic signal based on evolutionary game
  • Self-adaptive control method for period of traffic signal based on evolutionary game
  • Self-adaptive control method for period of traffic signal based on evolutionary game

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Embodiment Construction

[0035] This embodiment provides a traffic signal period adaptive control method based on evolutionary game, which is characterized in that: a two-layer hierarchical distributed structure is adopted, the upper layer is the regional control layer, and the lower layer is the intersection control layer; the regional control layer is mainly responsible for each For the optimization of period period and phase difference, the intersection control layer is responsible for the optimization of the green signal ratio in each period; the described evolutionary game-based traffic signal period adaptive control method is carried out as follows:

[0036] S1: A few seconds before the end of each period in the time period, according to the real-time detected road network traffic flow data, intersection parameter information and forecast information, optimize the green signal ratio used at the intersection in the next period;

[0037] S2: In the last period of each time period, the cycle and pha...

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Abstract

The invention provides a self-adaptive control method for the period of a traffic signal based on an evolutionary game. An evolutionary game theory is applied into the self-adaptive control of a traffic signal, the dynamic characteristics for controlling the traffic flow and the single are sufficiently considered, a signal lamp self-adaptive control model is built, and the problem of the control of the urban traffic signal lamp in the current region can be solved. The method is a completely-distributed control method, so that the characteristics of the traffic system, i.e. the uncertainty, the randomness, the nonlinearity, the locality and the like, can be well solved. Furthermore, relative to the application of other intelligent algorithms, the method is simple in structure, stable in performance, and good in modifiability and expandability.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to an evolutionary game-based traffic signal cycle self-adaptive control method. Background technique [0002] With the continuous development of social economy, the problem of urban traffic congestion is becoming more and more serious. As an important subsystem of intelligent transportation system, urban traffic control system has always been a research hotspot. Due to the complexity, uncertainty, time-varying and nonlinear characteristics of the traffic system, it is difficult for the existing control technology to control it effectively. With the continuous advancement of science and technology, it is the focus of current intelligent traffic control research to design an advanced urban traffic signal control system and improve the effect of traffic control by using new control theories and methods. [0003] The transportation system is a typical complex syste...

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Application Information

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IPC IPC(8): G08G1/081
Inventor 余春艳李建明吴丽丽
Owner FUZHOU UNIV
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