| Railway passenger terminal is one of ties which connect inside and outside of the city.With the highly continuous development of social economic level,technical level and urbanization process,the terminal station has developed from railway passenger station of single function to integrated transportation system which includes various transport modes.But the rising of various transport modes are still can not replace the important role of conventional public transit in urban transportation so far.The coordination of cohesion between railway transport and conventional public transit affects transport efficiency and passengers themselves’ travel efficiency directly.The cohesion of compact time and reasonable layout can not only provide passengers with higher degree of satisfaction in travel experience,but also promote the continuous development of harmonious,stable and comfortable transit systems.Therefore,this paper focuses on the transfer between railway and conventional public transit,moreover,it makes further research on optimization of operation time and stations’ layout link between them.Firstly,this paper reviews the research status on transfer studied by domestic and international scholars,and discovers that there exists problems in the research process of current field,then it analyzes the related theoretical knowledge about transit systems in railway passenger terminal,includes the types of facilities,layout patterns and conflict of traffic flow,subsequently among various transport modes,it chooses the conventional public transit for further research.Secondly,based on the analysis of traffic characteristics between railway and conventional public transit,this paper gives a detailed introduction on the aspects of three modes of layout and cohesion between them,calculation methods of matching degree on transport capacity and auxiliary facilities.These descriptions lay a theoretical foundation for this paper’s further process of optimization.Thirdly,in view of the passengers’ transfer time,this paper goes on the optimization of dispatch cohesion respectively from two aspects of capacity matching degree and departing time interval.On the one hand,it adjusts and optimizes the departure plan on equal interval of vehicle while the matching degree of transport capacity can achieve the optimum;On the other hand,it can take adjustments of unequal interval plan.Through hypothesis and fitting of the passengers’ walking time,it draws a conclusion that the time obey the Weibull distribution.This paper establishes the optimization model on the purpose of shortest transfer time for passengers,and sets vehicles’ departing time as the variable and solves the multiple model based on genetic algorithm.Then it proves the validity of optimization model on the strength of unequal interval departing time by a example.Finally,in view of the passenger transfer distance and under the circumstance of fixed bus stops,this paper plans to adjust the bus stops by adding auxiliary facilities and optimizing.this paper solves the optimization model through non-dominated sorting genetic algorithm based on the object of benefit between passengers and system.At last,it proves that the optimization model is effective and reasonable through examples.Furthermore,this study has certain reference value on optimization of transfer cohesion for railway and public transit. |