轨道交通换乘站方案设计与仿真分析

Scheme design and simulation analysis of rail transit transfer station

以西安地铁8号线的第16座车站为研究对象,对城市地下轨道站点交通换乘方案进行了分析,并对方案进行了仿真优化设计,基于用户均衡理论分配地铁车站内客流,并结合排队论,构建车站动态瓶颈分析模型,结合幸福林带管委会意见,将换乘通道设置在长乐中路北侧作为推荐方案。1号线改造可实现幸福林带、银泰中心与地铁三者间的互联互通,1号线与8号线换乘流线与进出站流线清晰,相互干扰较少。客流仿真模拟表明:从万寿路站1号线站台服务水平占比表明,站台拥堵水平占比39%。从仿真初始阶段至仿真结束阶段,客流密度由1人/m^(2)增至3人/m^(2);行人平均走行时间由50 s增加至120 s;行人平均走行速度由1.3 m/s降低至0.1 m/s。建议1号线万寿路站适时启动改造工程,改造站厅与站台之间楼扶梯组,增大楼扶梯组能力;8号线车站楼扶梯及设备设置布置合理。

Taking the 16th station of Xi'an metro Line 8 as the research object,this paper analyzes the traffic replacement scheme of urban underground rail stations,simulates and optimizes the design of the scheme,allocates the passenger flow in the subway station based on the user equilibrium theory,and combines the queuing theory to construct the dynamic bottleneck analysis model of the station,combined with the opinions of the Happy Forest Belt Management Committee,the transfer channel is set on the north side of Changle Middle Road as a recommended scheme,and the transformation of Line 1 can realize the interconnection between the Happy Forest Belt,Yintai Center and the subway.The interchange flow line and the entry and exit station flow lines of Line 1 and Line 8 are clear and have less mutual interference.Passenger flow simulation simulation shows that the proportion of service levels on the platforms of Line 1 from Wanshou road station indicates that the level of platform congestion accounts for 49%.From the initial stage of the simulation to the end,the passenger flow density increased from 1 person/m^(2) to 3 person/m^(2),the average walking time of pedestrians increased from 50 s to 120 s,and the average walking speed of pedestrians decreased from 1.3 m/s to 0.1 m/s.It is recommended that the Wanshou Road Station of Line 1 start the renovation project in a timely manner,renovate the escalator group between the station hall and the platform,and increase the capacity of the escalator group of the building;the escalator and equipment setting of the station building of Line 8 are reasonably arranged.