Study On The Content And Location Setting Of Guide Signs In Transport Hub Based On Function Area Layout And Passenger Flow Organization

Transportation hub is an important infrastructure in urban transportation system,which has a direct impact on the operation efficiency of transportation hub.The setting of guide signs in transport hub often affects the transfer efficiency of passengers,thus affecting the operation efficiency of transport hub.Guide signs play an important role in guiding and organizing passengers in the transport hub.A perfect guide sign system can improve the transfer efficiency and evacuation efficiency of passengers in the hub,improve the transfer and walking environment of passenger flow in the hub,and improve the organization and management level of passenger flow and rank management guarantee ability.Therefore,the setting of guide signs in transport hub is the key and difficult point in the field of transport design.Based on the background of comprehensive transportation hub,this paper puts forward a contents and locations setting method of guide signs based on the layout of functional areas and the organization of passenger streamline.Firstly,according to the clustering analysis of the passenger activity nodes,the functional areas in the transport hub are divided;secondly,based on the results of the functional area division in the transport hub,the passenger movement trajectory line arriving at different passenger activity nodes are aggregated into passenger streamline.Secondly,the method of passenger streamline aggregation and interweaving between the functional areas is proposed to form the organization scheme of passenger flow walking in the transport hub.Finally,on the basis of the passenger flow organization scheme,different levels of guidance signs and guidance information are aggregated,and normal guidance signs and emergency evacuation signs are set at different levels,and the Beijing South Railway Station is taken as an example for analysis.The main contents of this paper are as follows:(1)This paper analyzes the current research situation at home and abroad,describes the existing problems in the setting methods of guide signs,and expounds the concept,technical parameters,functions and setting methods of guide signs,types and characteristics of passenger streamline,as well as the basic theory of spatial syntax.(2)Based on the comprehensive correlation degree clustering model,the method of activity node clustering and functional area division in hub is proposed.In order to describe the homogeneity and relevance of the active nodes in the hub,based on the traditional road gateway connectivity model,a clustering model of the passenger flow activity nodes in the hub is constructed.The DBSCAN algorithm is used to solve the model and realize the functional area division based on the characteristics of active nodes,so as to form the starting and ending points of the passenger streamline served by the guide signs and simplify the passenger flow lines in the transport hub.(3)A method of passenger flow streamline organization based on the shortest passenger movement trajectory is proposed.Based on the concept of cellular automata space partition,a method of calculating the passenger's movement trajectory line based on Dijkstra algorithm is proposed.Based on the result of functional area division,this paper puts forward the solution method of passenger movement-trajectory-line to movement-streamline to streamline-belt aggregation and interweaving streamline.According to the location of emergency evacuation exit,the emergency service area is divided to realize the aggregation of normal movement streamline and emergency evacuation streamline.This paper analyzes the relationship between functional area layout and streamline organization,analyzes the accessibility of different functional areas by using space syntax theory to optimize the layout of functional areas and passenger streamline organization in hub.(4)The method of setting guide signs based on the organization scheme of passenger flow is proposed.Based on the layout of functional areas and organization of passenger streamline in the transport hub,the hierarchy setting step of normal guide signs with contents and positions are established.At the same time,the aggregation of normal movement streamlines and emergency evacuation streamlines is analyzed to realize the step-by-step setting of emergency evacuation signs and form a complete setting scheme of guide signs.