长沙西站高铁枢纽片区交通规划研究

Study on Traffic Planning of Changsha West Station High-speed Railway Hub Area

针对现状城市交通与高铁枢纽接驳耗时过多问题,以长沙西站高铁枢纽为例,研究提出高效的进出站快速集散系统,以协调整个城市的对外交通。首先,对大型交通枢纽片区的外部和内部快速集散系统进行了深入研究。一是对服务于高铁枢纽旅客进出站的快速集散道路交通系统进行研究,提出“双井”模式,适合于客流量大且客流来向分散的大型交通枢纽;二是对内部到达高铁枢纽的小汽车、出租车交通的进出站模式进行了分析探讨。其次,对站前广场周边各类交通设施布局进行研究,确保枢纽服务范围内的交通高效可达。最后,对服务于高铁周边商务区的地下环路交通的必要性进行了探讨,并提出了地下环路适用情况和单向逆时针交通组织方式,通过地库联络线连通周边地块,利用立体交通组织的方式,从空间上分离高铁枢纽进出站交通与周边商务区交通,减少交织,提高高铁枢纽片区交通效率。

Aiming at the present situation of too long transshipping of urban traffic and high-speed railway hub, taking the high-speed railway hub of West Changsha Railway Station as an example, the efficient in-and-out-station rapid collecting-distributing system is studied and proposed to coordinate the external traffic of the whole city. First, the external and internal rapid collecting-distributing system of large traffic hub area is further studied. The rapid collecting and distributing road traffic system serving the passengers in and out of the high-speed railway hub is studied. The "double-well" mode is proposed to suit the large traffic hub with the large passenger flow volume and the dispersive passenger flow directions. The in-and-out station mode of cars and taxis arriving at the high-speed railway hub is analyzed and discussed. Then, the layout of various traffic facilities around the station square is studied to ensure the efficient and accessible traffic in the service scope of the hub. Finally, the necessity of underground loop traffic serving the business districts around the high-speed railway is discussed further. And the applicable situation and the one-way anticlockwise traffic organization mode of underground loop are put forward. Through the basement contacting channel to connect the surrounding plots and using the mode of three-dimensional transportation organization, spatially, the in-and-out-station traffic of high-speed railway is separated from the traffic of surrounding business districts, which can reduce the traffic interweaving and improve the traffic efficiency of high-speed railway hub area.