基于仿真的交通信号控制优化策略研究

Traffic Signal Control Optimization Strategy Based on Simulation

根据道路流量,研究了利用灵活的控制策略提高交通控制的效率问题。针对信号控制交叉口实际流量动态变化的特征,在现有传统控制方法的基础上根据交叉口交通流的变化特点,提出采用可变车道控制模式的控制方法、单边轮放控制模式的控制方法,介绍了其潜在的适用条件、优势及特点,并在交通流量调查的的基础上,建立了交叉口的相应仿真模型,利用信号控制仿真软件Synchro验证了在高峰期不同控制方法的效果。仿真结果表明,所提出的控制方法适用于具有相应流量特点的交叉口,提高了信号交叉口的控制效率。

How to use flexible traffic signal control strategy to improve the signalized intersection efficiency was explored according to traffic flow. Based on the dynamic change of the intersection traffic flow, two intersection traffic control strategies were proposed, including the variable lane use on certain intersection approach, and the split-phase signal control strategy. Then, the potential applicability, advantages, and characteristics of the two strategies were analyzed. With the surveyed data, a corresponding simulation model was built, and the effectiveness of these methods was simulated with the traffic signal control simulation software Synchro. The simulation results indicate that the two methods proposed in this paper can be applied in the intersection with similar traffic flow and thus improve the efficiency.