Research On Layout Allocation Of Shared Bicycle Facilities In Urban Rail Transit Interchange Affected Area

As more and more cities have opened and operated rail transit,how to solve the end travel demand has received widespread attention.As an effective means of practice,in recent years,the shared bicycle system has developed under the background of the sharing economy developing rapidly,to a certain extent,it has solved the difficulty of traveling in the last mile of urban rail transit,improved the public transportation micro-circulation system,improved the quality of life of residents.However,the short-term expansion of shared bicycles lacks reasonable and effective planning.A large amount of waste of resources and low service levels make the efficient operation of the “rail transportation + shared bicycle” model unsustainable.Therefore,studying the layout and configuration of shared bicycle facilities in the affected areas of urban rail transit is conducive to grasping the usage characteristics and key issues of the shared bicycle and rail transit combined travel mode in the context of rail transit networking,and quantitatively analyze shared bicycle ride The spatial and temporal extent of the impact of the travel,provides corresponding decision support for the location layout and vehicle allocation of shared bicycle facilities in the transfer affected area of the rail transit station.First,this article describes the ride-sharing characteristics of shared bicycles at rail transit stations.Taking Nanjing as a research point,we obtained data about transfer and riding orders through data cleaning and filtering,combined with indicators such as the number of borrowing and returning,ride time and ride distance,it is further verified that shared bicycles are connected to the urban track by transferring the important role assumed by the last mile of traffic stations;On the other hand,by analyzing the demand volatility and tidality of shared bicycles of different types of rail transit stations during peak hours,the key time period and related parameters of the facility layout configuration are determined,and the stations are classified and differentiated by Gaussian mixed cluster analysis.The spatio-temporal analysis provides important guidance for the analysis of the transfer affected areas of urban rail transit stations.Secondly,this paper analyzes the shared bicycle transfer affected area of rail transit stations.Through the service area analysis model of the geographic information platform,the space-time circle layer of the transit and riding of the rail transit station is calculated,and the index system of the transit and riding of the rail station is constructed based on the existing multi-source data conditions,and the relevant factors such as traffic,facilities,and land are considered.Carry out network overlay analysis to obtain the spatial and temporal range of the affected area of the rail transit station,and combine the urban roads and land use to modify the impact area of the rail transit station,summarize and propose a set of tracks that can be analyzed by quantitative indicators The method of dividing the affected area of the traffic station transfer.Then,based on the analysis of the transfer affected area,this paper proposes the layout and configuration flow of shared bicycle facilities in the affected area of rail transit.Three combined travel modes of shared bicycle,walking,and public transit are selected for generalized travel cost analysis,and a generalized travel cost function including time cost and expense cost is established as a quantitative standard to support the layout and configuration of shared bicycle facilities in the transfer affected area.Perform cluster analysis on the starting and ending points of shared bicycle travel within the transfer affected area,and use the cluster center as the reference location of the corresponding facility candidate.Validate the clustering results using indicators such as the sum of squared errors and station radius,and initially predict the number,location,and initial number of vehicle allocation points.Based on the facility alternative points,a double-layer optimized shared bicycle facility layout configuration model was established,with the goal of improving the ride and ride volume,reducing the generalized travel cost,and ensuring the service level of the facility,to optimize the initial facility alternative point plan.Heuristic algorithm is used to solve the problem,and the configuration research is carried out from multiple angles and aspects,such as the number of shared bicycle facilities,site selection research,vehicle allocation and layout mode selection.Finally,based on the above technical methods,this article selects typical rail transit stations as research cases,discusses the configuration process of shared bicycle facilities in detail,selects model parameters for sensitivity analysis,and compares and evaluates from the perspective of combined travel mode transformation.It has important guiding significance for the optimization and adjustment of existing parking facilities and the planning research of new parking facilities.