Study on Optimization of Phase Offset at Adjacent Intersections

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Yuanli GU 1,* Lei Yu 1

1. Beijing Jiaotong University, School of Traffic and Transportation, Beijing, China

* Corresponding author.


Received: 20 Feb. 2010 / Revised: 13 Jun. 2010 / Accepted: 11 Sep. 2010 / Published: 8 Nov. 2010

Index Terms

Optimization, adjacent intersections, phase offset, traffic flow, modeling


Optimization of the phase offset at adjacent intersections is the key parameter regarding coordinated control of traffic signal for adjacent intersections, which decides the effect of the coordinated control for adjacent intersections. According to characters of saturated traffic flow of Chinese urban road, this thesis establishes a model for optimization of phase offset for adjacent interactions and finds a solution from such model by adopting genetic algorithm. The model is verified by actual traffic flow datum of two adjacent signal intersections on Changan Avenue. Then a comparison is made between the optimization result of such model and that of the existing mathematical method and SYNCHRO model, which indicates that the model established by this thesis can reduce the delay suffered by vehicles at the intersections and increase the traffic efficiency of the intersections.

Cite This Paper

Yuanli GU, Lei Yu,"Study on Optimization of Phase Offset at Adjacent Intersections", International Journal of Intelligent Systems and Applications(IJISA), vol.2, no.1, pp.30-36, 2010. DOI: 10.5815/ijisa.2010.01.05


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