基于绿间隔矩阵的信号配时计算方法研究及应用

Research and Application of Signal Timing Calculation Method Based on the Green Interval Matrix

合理的绿灯间隔对保障交叉口交通安全和提高通行能力至关重要,国内还没有制定绿灯间隔时间计算的具体标准。文中以交叉口时空资源最大化为目标,以常见的十字交叉口为研究对象,基于交通冲突分析探讨建立交叉口各流向绿间隔矩阵的方法,通过对非冲突流向之间优化组合划分相位方法的探讨,提出了信号设置"大小相位"的概念,采用绿间隔矩阵分析了相位之间的绿间隔时间计算方法。实例仿真分析表明,该配时方法实用可行。

Green interval time is one of the most important parameters in the single timing and the rea-sonable traffic single scheme will play a vital role to ensure the safety of intersection and improve the traffic capacity.But there still has no national standard for calculating the inter-green interval time. This paper focuses on common intersection and aims at getting maximum efficiency of intersection. The model of traffic flow＆#39;s green interval matrix is established after traffic conflict analysis.The meth-od of optimizing the phase group of non-conflict traffic flow is discussed.A new phase for setting the traffic signal is developed.Green interval time can be calculated by using the green interval matrix. The result in the example shows that this timing method is feasible.