Study On Optimization Of Passenger Line Network Transfer Node Layout

In the passenger dedicated line coming into the network conditions, bus oriented operating model will be a development direction, passengers spontaneously select the transfer change will be a developmental trend. With the rapid economic development, improving rail line conditions and station passenger service facilities, ticketing systems, train control systems, and dispatching system continue to improve, will may eventually achieve a high-speed transfer mode of transfer-based. Under this background, there is a problem about the layout of transfer nodes in the passenger line network. Rational distribution of transfer nodes is a prerequisite to improve the production efficiency of railway transportation, accelerate the turnaround of the EMU, shorten the travel time of the passenger, and improve the economic and social benefits. Therefore, this paper studied the layout of the transfer nodes in the passenger dedicated line network, which including:(1) Separately from both of the rail transport organizational model and passenger transfer behavior to analyze the feasibility and necessity of the transfer. On this basis, through the analysis of the passenger dedicated line network and traffic conditions, initially defined the scope of the transfer constituting nodes.(2) Analyzed the factors affecting the distribution of the transfer nodes, and using the analysis method of cluster theory to determine the alternative sets of transfer nodes, thus reducing the size of solving the problem.(3) Abstractly described the rail network, constructed the model of the passenger dedicated line network, based on this, designed the searching algorithm to solve the shortest path between any two points in the network.(4) To merged the passenger flow, only considering the large passenger stations of the main trunk of the passenger dedicated line. On this basis, the paper splits all the OD of the passenger flow in its shortest routes of the transfer station, overlaying the splitting passenger to transfer station or transfer interval, and designed the superposition algorithm to calculate the passenger flow between any two transfer stations.(5) By analyzing the relationship between the passenger waiting time, transfer time and the frequency of train services, then constructed successfully the optimization model of the transfer nodes in the passenger line network.(6) By analyzing the characteristics of the model, designed the algorithm to fit the model, and for example to the self-constructed passenger line network diagram, then prepared the corresponding program. Meanwhile, in order to increase the likelihood of transfer passengers, also gives some improvements.Finally, this paper summarizes the research contents and achievements of the full text, and gives the problems which need to be further studied.