城市轨道交通环线设置条件及规划可行性研究

Study on the construction conditions and planning feasibility of urban rail transit loop line

城市轨道交通环线作为城市轨道交通线网的重要组成部分,既可以承担城市中心城区边缘横向客流的集散功能,又能够为中心城区与郊区之间的通勤客流提供更多换乘路径,减轻中心城区车站的换乘压力。文章在梳理城市轨道交通环线分类、功能、基本特征的基础上,对其设置条件进行剖析和阐述,然后以深圳市轨道交通15号线环线为例,从既有城市轨道交通线网规模、城市发展布局、客流需求、工程施工条件、环线长度5方面分析其规划的适用性和可行性,并针对该环线日后可能面临的运营问题提出相应建议,以期为城市轨道交通环线的合理规划和建设提供参考和借鉴。

As an important part of the urban rail transit network,the urban rail transit loop line can not only undertake the distribution function of passenger flow around the central urban area,but also provide more transfer paths for radiation commuting passenger flow between the central urban area and the suburbs,reducing the transfer pressure of central urban stations.On the basis of sorting out the classification,functions,and basic characteristics of urban rail transit loop lines,this article analyzes and elaborates on their construction conditions.Then,taking the Shenzhen rail transit loop line 15 as an example,the applicability and feasibility of its planning are analyzed from five aspects:the scale of existing urban rail transit network,urban development layout,passenger flow demand,engineering construction conditions,and loop line length.Corresponding suggestions are proposed for the possible operational issues that the loop line may encounter in the future,in order to provide reference for the reasonable planning and construction of urban rail transit loop lines.