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| 基于绿灯时间的交通子区划分 |
| Traffic Sub-area Division based on Green Time |
| 投稿时间：2018-10-24 |
| DOI：10.16018/j.cnki.cn32-1650/n.201901010 |
| 中文关键词: 干线协调 车流散布密度 绿灯时间 相位差 Vissim |
| 英文关键词: Arterial Coordination Density of traffic flow Green time Phase difference Vissim |
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| 中文摘要: |
| 针对传统交通子区划分方法对协调系统中车流运行状态分析不够透彻导致车流量与协调系统公共周期不匹配的缺陷，将实际交通量转换成系统公共周期下的协调交通量，通过协调系统中车流散布密度进行初级子区划分；分析协调系统车流进入影响因素及运行时协调相位绿灯间相互作用关系，提出基于绿灯时间的交通子区划分方法；对划分出的交通子区协调相位差求解提出切合实际的求解方法，对子区间协调时相位差调整提出合理计算方法，并以双向绿波带宽和最大为目标函数，寻求最佳相位差；最后选取实例利用Vissim软件对进行仿真验证。仿真结果表明，划分出的交通子区协调控制效果优于传统分区的协调控制效果。 |
| 英文摘要: |
| Aiming at the defect that the traditional traffic subarea division method is not thorough enough in analyzing the operation state of traffic flow in the coordination system, which leads to the mismatching between the traffic flow and the coordination system's public period, the actual traffic volume is converted into the coordination traffic volume under the system's public period, and the preliminary subarea division is conducted through the traffic flow distribution density in the coordination system. This paper analyzes the influencing factors of traffic flow entering the coordination system and the interaction between green lights and traffic phase coordination during operation, and proposes a traffic sub-region division method based on green time. A practical solution method for solving the coordinated phase difference of the traffic sub-area is proposed. A reasonable calculation method is proposed for the phase difference adjustment of the sub-interval coordination, and the optimal phase difference is sought with the bidirectional green wave bandwidth and the maximum objective function. Finally, an example is selected to verify the proposed method by using Vissim software. The simulation results show that the coordinated control effect of traffic sub-area divided by this method is better than that of traditional pre-partition coordination control. |
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