地铁典型换乘站换乘方式适配性评价研究

针对地铁换乘站换乘方式适配性评价难题,提出总体技术方案并构建设施平均密度、能力饱和度、平均疏散时间等量化评价指标,以典型十字换乘站——沈阳地铁青年大街站为例,重点分析换乘方式能力适配性问题。通过车站客流仿真及指标计算评价,发现站台能力不足及换乘设施客流冲突等问题突出。因此,从行车组织及车站结构方面提出优化建议,其中压缩行车间隔仅能提升车站运能,但难以解决换乘节点客流冲击问题;而优化车站结构仅能减缓换乘设施压力,若同时实施,则能彻底解决能力不足和冲击性问题。建议大客流换乘站不采用十字节点换乘,应结合工程条件优先考虑T型或L型换乘。

Adaptability Evaluation of Transfer Mode of Typical Metro Transfer Station

This paper presents the overall technical solutions to the problem of adaptability evaluation of transfer modes in subway transfer stations, and proposes a quantitative evaluation index for the average density, capacity saturation, and average evacuation time of passenger flow in the facilities. A typical cross interchange, specifically, the Shenyang Qinniandajie Metro Station is considered as an example and the adaptability of the transfer capacity is analyzed. Through the station pedestrian simulation and index calculation and evaluation, it is found that the platform capacity is insufficient and there is significant passenger flow conflict in the transfer facilities. Therefore, a plan for improvement is suggested, involving the driving organization and the civil engineering reconstruction, in which the compression interval can improve the overall capacity of the station. However, it is difficult to solve the passenger flow impact on transfer node, and the implementation of the station structure modification can reduce the passenger flow pressure in the transfer facility. The proposed large passenger transfer stations should not use the cross-point transfer, but should be combined with engineering conditions to give priority to T-type or L-type transfers.