关键词: 交通运输工程, 协调控制, 模糊逻辑, 相序优化器, 智能交通控制, 仿真

Abstract: A simplified traffic flow model for the road intersection was proposed and a fuzzy logic controller based on the phase sequencer was developed. The developed controller was designed based on the simulation of the traffic policemen judging and decisionmaking process during their manual traffic control. A new algorithm was used which is derived from the system concept and differs from the traditional signal coordinated control algorithm. The fuzzy controller and the phase sequencer are combined to perform the traffic control, the former decides the desirability of phase switch, and the latter decides the next green phase based on the priority rating. The computer simulation showed that the developed controller works with good performances.

Key words: transportation engineering, coordinated control, fuzzy logic, phase sequencer, intelligent traffic control, simulation