机动车相位固定最小绿灯时间计算方法  

Absolute Minimum Green Time Calculation for Vehicle Phase

作　　者：徐洪峰[1] 郑明明[2] 李克平[3] 

机构地区：[1]大连理工大学土木水利学院,辽宁大连116024 [2]大连交通大学交通工程系,辽宁大连116028 [3]同济大学交通工程系,上海201804

出　　处：《公路交通科技》2008年第5期105-110,120,共7页Journal of Highway and Transportation Research and Development

摘　　要：面向典型的十字形信号控制交叉口,建立了具有8个机动车相位和4个行人相位的双环相位结构,采用一种半环分析方法,讨论了可能存在的相位组合方案和相位切换方案,定义了起始相位和末尾相位两种机动车相位属性,分析了相位切换过程的基本规律。建立了具有不同属性的机动车相位的固定最小绿灯时间与相位结构、行人相位绿灯时间、绿灯间隔时间的数值关系。以相位结构、最小行人过街时间和绿灯间隔时间为主要依据,离线计算得到机动车相位固定最小绿灯时间。控制时段内,自适应控制策略可以根据当前信号周期内的机动车相位属性,为其动态分配固定最小绿灯时间。算例分析表明,该方法具有较好的可操作性。An improved dual-ring phase structure including eight vehicle phases and four pedestrian typical signalized intersection of two streets was established. A side-of-barrier analytical method is phases for a employed to enumerate possible phase combinations and phase transitions and to outline basic principles of phase transition process with the introduction of two vehicle phase attributes, i.e. initial green phase and terminal green phase. In terms of vehicle phases with certain attribute, it illustrates the numerical relationships among absolute minimum green time, phase structure, pedestrian walk interval and intergreen times. In adaptive control strategies, absolute minimum green time is required to be calculated off-line according to phase structure, minimum pedestrian walk interval and intergreen times and is expected to be dynamically assigned to vehicle phase on-line in accordance with its attribute during control period. The sample results indicate that the calculation method has good practicability.

关 键 词：交通工程 固定最小绿灯时间 双环相位结构 行人过街时间 绿灯间隔时间 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]