The Allocation Optimization Study Of Road Traffic Resources Around Subway Station Entrance

With the acceleration of urbanization process,the scale of the city continues to expand,and the urban population is highly concentrated,which inevitably increases the burden of urban traffic.Traffic congestion problems can be seen everywhere,and the road traffic load of cities tends to be extreme.As a convenient and efficient transportation mode,rail transit bears a large number of passenger flows in the city,effectively improving the efficiency of urban residents' travel,and alleviating the traffic congestion problem of the city.It has an irreplaceable role.However,with the development of rail transit,while residents enjoy their convenience,the traffic problems of subway entrances and exits have become increasingly prominent due to the unreasonable planning,design and resource allocation.Various modes of transportation are intertwined and have complex traffic organizations.Based on this,this paper will focus on the road traffic resources allocation of subway entrances and exits,to optimize its resource allocation,in order to reduce the delay of different modes of transportation in subway entrances and exits,improve the operational efficiency of urban integrated transportation system,and promote the coordinated development of urban transportation.In order to allocate the traffic resources of subway entrance and exit rationally,it first analyzes the functional positioning of different road traffic facilities at the entrance and exit of the subway,and selects the typical cities in China to study the current situation of the subway entrances and exits of according to its functional orientation.Summarizes the bus connection situation of Nanjing Rail Transit Line 1 site and analyzes its problem.Secondly,it focuses on the layout of the bus stop around the subway entrance and exit,including the layout principle of the bus stop around the subway entrance and exit and the different transfer modes between the bus and the subway.Then it proposes the optimization goal of the bus stop of the subway entrance and exit,analyzes the influencing factors of the optimization target,and uses the Analytic Hierarchy Process to determine the weight of the influencing factors.Then,it simulates different simulation scenarios set by different influencing factors by using VISSIM,and obtains the travel time and delay data of the pedestrians,motor vehicles and buses in different scenarios,and layouts the most reasonable location for the bus station in different scenarios.According to the simulation results,relevant conclusions are drawn.Finally,the application of the Southeast University Jiulonghu Campus Station of Nanjing Rail Transit Line 3 is carried out to analyze the layout of the subway entrances and exits,the layout of the bus stations and the intersections,and to analyze them through different optimization simulations.Get a reasonable layout location for the bus stop.The research methods and conclusions of this paper can provide relevant basis for the optimal allocation of traffic resources at the entrance and exit of urban subways.