基于Webster原理的中小城镇道路交叉口组织优化及信号控制

Organization Optimization and Signal Control at Road Intersections in Small and Medium-sized Towns Based on Webster Principle

文章针对中小城镇道路交叉口交通拥堵问题,以丹北镇中心大街为例,结合现场调查数据,对中心大街交通现状进行全面分析,运用Webster原理对交叉口提出单点配时和干道协调控制的两种改善方案。利用Vissim仿真软件,在交通改善对策实施的基础上,对现状道路、单点配时和干道协调三种方案进行仿真分析,通过对比分析改善后道路的整体运行状况,得到最优的改善方案。

Aiming at the traffic congestion problem at road intersections in small and medium-sized towns, this paper takes Zhongxin street in Danbei Town as an example, and combines the field survey data to comprehensively analyze the traffic status of Zhongxin street. The Webster principle is used to propose two improvement schemes of single-point timing and arterial road coordination control at intersections.Using Vissim simulation software, simulation analysis is carried out on three schemes of current road, single-point timing and arterial road coordination based on the implementation of traffic improvement countermeasures. By comparing and analyzing the overall operation status of the improved road, the optimal improvement scheme is obtained.