基于灰色聚类的城市轨道交通线网层次划分

Hierarchical Division of Urban Rail Transit Network Based on Grey Clustering

为了明确各条线路在整个城市轨道交通线网中的功能定位和修建时序,需要对其进行科学合理地分层规划,从而形成一个良好的层次组织方案。在分析国内一些城市对轨道交通线网层次划分的基础上,明确了轨道交通线网层次划分类别,建立了线网层次划分的量化指标体系,并进一步建立了基于灰色定权聚类的层次划分方法。最后以西安轨道交通线网为例进行了层次划分,并结合层次划分给出了项目建设排序。

In order to define the function and scheduling of each line in the whole urban rail transit network,a scientific and reasonable hierarchical division is needed.Based on the analysis of hierarchical division of urban rail transit network in some Chinese cities,the hierarchical classification and quantified indicators are put forward.Then,a method of hierarchical division is gained based on grey clustering.As an example,this paper makes a hierarchical division of Xi＇an rail transit network and obtains the project building scheduling accordingly.