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为使感应式交通信号控制系统中由于协调控制方案调整造成的额外延误和停车次数最小,基于先进交通管理系统数据设计了基于随机理论的相位差计算方法. 在感应式信号控制系统中,干线的绿灯启动时间是随机的. 基于支线绿灯时间中断机理,应用随机理论分析支线未使用绿灯时间的分布. 最佳干线绿灯启动时间可选取在绿灯时间返还概率最大处,以保证因干线绿灯启动时间变化而引起的停车和延误最小. 所提方法通过在交通状况接近于中国中小城市的美国缅因州的一个实例研究得到了进一步的论证,证实了新计算方法能够显著减低干线车辆行驶时间和延误.
In order to minimize the additional delays and stoppages caused by coordinated control schemes in induction traffic signal control system, a phase difference calculation method based on stochastic theory was designed based on advanced traffic management system data.In the inductive signal control system, Green light start time is random. Based on the branch green time interrupt mechanism, the stochastic theory is used to analyze the distribution of unused green light. The best green light green start time can be selected at the maximum green light return probability to ensure the green light start time change The proposed method is further validated by an example study in Maine, a city close to the Chinese metropolitan area with moderate traffic conditions, confirming that the new calculation method can significantly reduce the travel time and delay of the mainline vehicle.