Study On Key Issues Of Networked Urban Rail Transit Operation

The urban rail transit is an important part of the comprehensive city transportation system with its characteristics of large-capacity, speediness, punctuality, comfortableness and safety, which had do a lot to help alleviating the traffic congestion and transport capacity.In recent years, the urban rail transit is gradually showing the characteristics of scale and network as the city’s development and improvement, and the research of it can effectively promote alleviating the traffic congestion and transport construction.Firstly, this paper introduced the temporal and spatial distribution of the passenger flow and the propagation law of passenger flow outburst from the starting station to transfer station. Then this paper introduced the time nonequilibrium factor of passenger flow, the direction nonequilibrium factor of passenger flow and the section nonequilibrium factor of passenger flow separately.Secondly, this paper introduced the types, applicable conditions, influencing factors and key data such as the interval between trains of train routing, put forward some calculation methods for operation index of different train routing which provided certain theoretical basis for its drawing and evaluating.Finally, combined the drawing theory and method of train diagram with the characteristics and requirements of urban rail transit network transport organization, this paper constructed a general recursive model about train diagram drawing of single line and a general optimization model about train diagram drawing of network allowing for effective connection of the train arrival and departure time in transfer station in low cycle successively. According to the particular case of Chongqing in2012, this paper drew the train diagram of line1, line2, line3and line6during21:00to22:30in case of single and network separately.