过饱和交通状态下的停车延误协调控制模型

Coordinated control models for stop and delay under over-saturated traffic conditions

中文关键词  交通工程  停车延误模型  到达–驶离图  过饱和  协调控制

英文关键词  traffic engineering  stop and delay models  arrival-departure diagram  over-saturated  coordinated control

中文摘要

      选取整个过饱和状态持续作用时间作为研究时段, 利用交叉口进口道的车辆到达–驶离图, 根据行驶车队头车到达下游交叉口进口道的不同时刻, 分别针对行驶车队在一个以红灯启亮为起始的信号周期之内到达和跨越一个以红灯启亮为起始的信号周期到达两种情况, 对过饱和交通状态下行驶车队通过协调信号控制交叉口的停车延误进行了分析研究, 建立了一套过饱和交通状态下的停车延误协调控制模型, 得到了滞留车辆数、停车次数、延误时间等性能指标与相邻交叉口相对相位差、公共信号周期等协调控制变量之间的相关关系, 并通过交通仿真对控制模型进行了分析验证, 为过饱和交通状态下的协调控制技术方法研究提供了相关理论依据.

英文摘要

      In the duration of over-saturated traffic conditions, this paper studies the approach-delay under coordinated control with cumulative arrival-departure diagram based on the time that platoon reaches downstream intersection: 1) platoon arrives in a cycle with the start of red phase; 2) platoon arrives throughout a cycle with the start of red phase. This paper proposes stop and delay coordinated control models under over-saturated traffic conditions for different arrival types, and obtains conclusions about the relationship between performance indexes(number of detained vehicles, number of stops, and delay) and coordinated control variables(relative offset, common signal cycle). The control models have been analyzed and verified by traffic simulations. This method provides a theoretical basis for the coordinated control technology under over-saturated traffic conditions.