Z.C. Wang, L. Tang, J.S. Huang
The current trunk road coordinated control method may cause failure in extreme control under highly saturated traffic and cannot adapt to the random change of traffic flow at intersections. In order to solve this problem, it is proposed to study the inductive trunk road coordinated control technology of variable traffic flow. In this paper, the phase time of a current green light was decided through the fuzzy coordinated control algorithm based on phase sequence optimization and by imitating the judgment decision process of a traffic police in taking command, to judge whether the green light duration under the current vehicle density should be extended, so as to study the inductive trunk road coordinated control technology of variable traffic flow. Control failure for traffic saturation can be avoided effectively by taking vehicle density as the basis for inductive control. The experimental results show that the proposed trunk road traffic control technology can effectively control high-density traffic in a coordination way and provides a strong basis for urban transit dispatching.
Keywords: variable traffic flow; RFID technology; inductive; electronic tag; phase; fuzzy coordinated control