相邻信号交叉口临界协调间距计算方法  

Calculation Method of Critical Coordination Link Length Between Two Adjacent Intersections

作　　者：别一鸣[1,2] 王殿海[3] 赵莹莹[1] 宋现敏[1] 

机构地区：[1]吉林大学交通学院,长春130022 [2]哈尔滨工业大学交通科学与工程学院,哈尔滨150091 [3]浙江大学建筑工程学院,杭州310058

出　　处：《北京工业大学学报》2013年第2期239-244,共6页Journal of Beijing University of Technology

基　　金：国家科技支撑计划资助项目(2009BAG17B02);国家"863"计划资助项目(2011AA110304);国家自然科学基金资助项目(50908100)

摘　　要：为了计算相邻两交叉口可以划入同一控制子区的最大临界间距,在进口道停车线前布设线圈检测器获取车流驶离图式;基于罗伯逊车队离散模型,建立了下游交叉口车队到达图式与交叉口间距的关系函数;根据HCM2000中对协调控制效益等级的划分,以下游协调相位每周期绿灯期间到达车辆数占到达总车辆数的40%作为临界条件,分别研究了单向协调与双向协调情况下临界间距指标的动态计算方法,该指标与车队流量、信号配时等动态要素密切相关;最后以算例形式对所建算法的应用情况进行了分析.To calculate the maximum link length by which two intersections connected could be partitioned into one subarea, loop detectors were placed before the stop lines of approaches to obtain platoon pattern, and the relationship between downstream platoon pattern and link length was established based on Robertson＇ s dispersion model. According to the level division of arterial progression quality in HCM2000, the threshold criteria that arrival vehicle percentage during green light equals to 40% was brought forward. Then calculation method of maximum critical link length indices were developed under dual direction coordination and unidirectional coordination circumstances respectively. The indices were strongly related to platoon size and signal timing parameters. At last, the application process of the method was explained by way of examples.

关 键 词：信号协调 临界间距 车队离散 效益评价 子区划分 

分 类 号：U491.4[交通运输工程—交通运输规划与管理]