城市交通微循环系统优化设计方法

Optimization Design Methods for Urban Traffic Microcirculation System

为充分利用城市交通微循环道路资源以有效缓解路网交通拥挤,在分析交通微循环系统特征的基础上,设计了完整的城市交通微循环系统优化方法.以缓解区域路网交通拥挤为优化目标,依据交通流特征与交通需求定位城市主干道路网的拥挤路段,然后建立微循环绕行路线的搜索模型,能够确定需进行道路条件与交通组织优化的微循环路段,并生成静态交通标志与可变信息板的布设地点.以曲靖市中心城区交通微循环系统优化为实例,验证了所提出优化方法的有效性.

In order to make full use of urban traffic microcirculation road resources and to relieve traffic congestion in road network,the integrated optimization methods for urban traffic microcirculation system are designed based on characteristic analysis.To relieve traffic congestion in road network is defined as the optimization objective.The congestion road sections are then determined by traffic flow feature and traffic demand.The detour routes search model for microcirculation system is also proposed,which can determine the road sections in urgent need of optimization as well as the configuration location of road guide signs and variable message signs（VMS）.The feasibility of the proposed methods is verified through a central urban district traffic microcirculation system optimization in Qujing.