Research On Allocation And Layout Of Transfer Facilities In Dalian North Railway Station Comprehensive Transportation Hub

The main function of the comprehensive transportation hub is to make the passengers travel quickly and efficiently,and play a key role in the city's external traffic and the transfer of urban transportation.Therefore,the research on the configuration and layout of the transfer facilities is the core of the comprehensive transportation hub planning and design.The comprehensive transportation hub of Dalian North Railway Station is a modern comprehensive transportation hub with multiple traffic modes in one.Through the construction of a new long distance passenger center and the established railway station and subway station,a straight and convenient interchange corridor is formed,and the functions of the city bus terminal,the car rental station and the large P+R parking lot are integrated.The airport check-in service,as well as compatible transport services,ports and other traffic transfer mode is connected.Therefore,the rational allocation and layout of the transfer facilities in the Dalian North Railway Station can effectively shorten the passenger transfer distance,reduce the cross interference between the flow and traffic,and improve the transfer efficiency of the hub.Therefore,it is of theoretical value and important practical significance to study the allocation and layout optimization of the transfer facilities of Dalian North Railway Station,and to improve the overall transfer efficiency and service level of the comprehensive transportation hub of the Dalian North Railway Station as a whole.First,combined with the construction and research results of comprehensive transportation hub at home and abroad,the basic theory knowledge of comprehensive transportation hub is expounded,including the concept,function and classification of comprehensive transportation hub Then analyze the transfer system of the comprehensive transportation hub including the types of transfer facilities,the layout mode of transfer facilities,and the transfer layout mode of railway and various modes of transportation.Secondly,the characteristics of traffic modes and passenger flow composition in the comprehensive transportation hub is analyzed.On this basis,the forecast of external passenger flow and transfer passenger flow of the comprehensive transportation hub is determined.By contrast to a variety of prediction methods,selecting the suitable prediction method to predict the passenger traffic volume of the external traffic mode in the hub.So as to determine the volume of passenger traffic in the comprehensive transportation hub,and establish a transfer sharing rate model with maximum utility of travelers,and predict the passenger flow between different modes of transportation.Thirdly,the connotation of the allocation of transfer facilities from the three aspects of the concept,content and basic principles of transfer facilities allocation for comprehensive transportation hub is expounded.And the calculation method of the scale of site facilities in the comprehensive transportation hub is determined.Combined with the predicted passenger volume,calculate the basic scale of the comprehensive transportation hub site facilities.So as to determine the design scale of the comprehensive transportation hub site facilities.Finally,the layout of transfer facilities for comprehensive transportation hub is studied.Based on the analysis of transfer facilities layout of comprehensive transportation hub,consider the main factors that affect the layout of the transfer facilities.Take the shortest transfer time and the minimum traffic flow conflict as the optimization objective,a two objective optimization model is established.Combined with the general situation and regional traffic status of comprehensive transportation hub,through non dominated sorting genetic algorithm,the optimal layout scheme of comprehensive transportation hub site facilities is obtained.This thesis verifies the rationality and practicability of the layout optimization model proposed and the station facilities scale calculation method through the actual project of Dalian North Railway Station comprehensive transportation hub,which will provide a reference for future hub planning and construction.