基于可达性的市域轨道交通换乘节点选址研究

Location selection of transfer nodes of urban railway and rail transit based on accessibility

为解决市域铁路与城市内部轨道交通的换乘节点选址问题,促进市域铁路在城市边缘与其他制式轨道交通形成良好衔接开展研究.首先,对通勤旅客由城市外围到达城市内部的出行过程进行分析,并对传统的空间句法加以改进,以计算备选换乘节点的可达性、量化备选节点在轨道交通网络中的重要程度;其次,提出基于可达性的市域铁路与城市轨道交通换乘节点的选址步骤;最后,以成都市为例,解决市域铁路环线与城市轨道交通换乘节点的选址问题.研究结果表明:基于轨道交通节点可达性的选址方法可为制定市域铁路与城市轨道交通换乘节点的选址策略提供参考.

In order to solve the location problem of transfer nodes between suburban railway and urban rail transit,and to promote a good connection between suburban railway and other types of rail transit in the edge of the city,this paper presents the travel process of commuter passengers from the suburbs to the inner city,improves the traditional space syntax,calculates the accessibility of alternate transfer node,quantitatively analyzes the importance of nodes in the traffic network,and summarizes the suburban railway and urban rail transit transfer nodes location steps based on node accessibility.Finally,Chengdu city is taken as an example to solve the location problem of transfer nodes of suburban railway and urban rail transit.The result shows that the method of location selection based on the accessibility of rail transit nodes can provide reference for the location selection strategy of transfer nodes of urban railway and urban rail transit.