Hybrid control for over-saturated signalized intersection based on switched system

Wei Ming Xiang, Jian Xiao, Yang Sheng Jiang

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

In order to propose a more effective control method for signalized intersection, the relief of waiting vehicle queue in an oversaturated intersection is viewed as the exponential stability problem of a discretetime switched system, and the overflow of the queue can be viewed as the boundedness problem. Thus, a discrete-time switched system model is constructed for signalized intersection, and exponential stability and boundedness are analyzed based on Lyapunov function method. Meanwhile, the state feedback scheme is designed to set green time, which can relieve the waiting vehicles exponentially and reduce the number of waiting vehicles. Finally, a hybrid control strategy is obtained which is suitable for over- saturated intersection. Compared with commonly used Webster approach, the hybrid control strategy is able to relieve the waiting vehicles faster, which makes the delay time shorter.

Original languageEnglish (US)
Pages (from-to)57-61
Number of pages5
JournalJiaotong Yunshu Xitong Gongcheng Yu Xinxi/Journal of Transportation Systems Engineering and Information Technology
Volume14
Issue number2
StatePublished - Apr 2014
Externally publishedYes

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Keywords

  • Finite-time stability
  • Lyapunov function approach
  • Over-saturated intersection
  • Stability
  • Switched system
  • Urban traffic

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modeling and Simulation
  • Transportation
  • Computer Science Applications

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