A Method Of Peak Passenger Flow Of Urban Rail Transit Interchange Stations

With the increasing development of urbanization, the requirement of travel is also gradually increasing. More and more passengers choose the subway as their transportation because of the safety and punctuality, which results in the rapid growth of urban rail transit traffic and leads to a more serious problem of traffic congestion. This phenomenon is obvious in transfer station during peak hours. It does damage to the security of subway. Therefore, imposing restricts on the passenger flow of interchange station during peak hours is a significant approach to relief the overloaded passengers and the safety of subway operation. Formulating the method of peak passenger flow during peak hours is becoming an important problem of promoting the development of urban rail.After studying a large number of relevant literature about rail passenger organizations, the following work were accomplished:(1)the paper firstly analyzes the characteristics of flow and the capacity of the critical subway facilities. The analysis about characteristics of flow can be devided into two aspects:micro and macro. By analyzing and calculating the survey data, we can know the real capacity of critical facilities. (2)Secondly, classify the passengers and analyze the distribution process of passengers. Based on the discrete linear quadratic optimal control theory, put the flowing into the site as a control input variable and the number of passengers on platform as a state variable. Constructing site traffic density with minimum objective function transfer station rush hour traffic control model. By installing the capacity of the key facilities as the constraints of the model, we can obtain the optimal traffic control sequence which flows into the platform.(3)Then, taking into account disturbance passengers, the model predictive control is used to find the optimal control sequence in case of disturbances.(4) Finally, A peak passenger flow model of the Line 10 of Beijing, Huixinxijienankou Station is established, and then the station platform morning rush up and down direction of the best stop traffic control sequences is obtained. The simulation software Anylogic and the output verify the rationality and feasibility of the model and provide a theoretical support for the development of the transfer station rush hour traffic control scheme.