西安地铁北大街站换乘功能评价研究

Evaluation on Transfer Function for North Street Station of Xi'an Metro

采用动态模拟的方法对西安北大街站的换乘功能进行评价,发现问题产生的根源是车站换乘形式选择不合理导致的客流冲击性过大并且车站换乘设施规划偏小。针对存在问题提出两套解决方案,方案一采用站厅换乘的客流组织方案来缓解客流对换乘设施的冲击;方案二采用增加楼扶梯来缓解站台客流拥挤问题,并通过动态模拟方法验证改进方案的优化效果。根据北大街站的评价结论提出对其他类似换乘站的设计工作具有指导作用的建议:同类型车站应至少保证3组楼扶梯;换乘量较大车站应尽量少采用岛侧换乘形式等。

By using the method of dynamic simulation,the authors study and evaluate the transfer function for North Street Station of Xi＇an Metro,figuring out the root of the problem. The transfer form is not proper enough to meet the impact of passenger flow;besides,the planning of station transfer facilities is too conservative. Based on the problems presented,two solutions are put forward. First,the passenger flow organization in the station hall is used to ease the impact of the passenger flow on the transfer facilities. Second,more stairways and escalators are used to evacuate passengers. Finally,dynamic simulation models are introduced to test the effectiveness of the optimal results. On the basis of the evaluation of North Street Station,some directive suggestions are put forward for similar design,for example,at least 3 sets of stairways should be ensured for similar stations,and the island-side transfer form should be carefully adopted when transfer passenger flow is huge.