| The interchange organization of urban rail transit is a complex system, and the research on planning and operation of interchange stations is concerned with multiple subsystems of urban rail transit system. Researches on problems relative to interchange station planning and operation have been deeply explored by domestic and foreign scholars, the problems include network planning, station planning, comparison of interchange modes, train operation organization, pedestrian flow organization and interchange service evaluation.Main influence factors of interchange level of service are discussed, and three factors including different interchange modes, multiple train routes and fluctuation of train running time are chosen to explore their influence to interchange station operation organization and level of service. Multiple elements from various aspects concerned with interchange station planning and operation are discussed to determine passenger interchange time and assembling on platform which are important indexes relative to interchange level of service, these elements include interchange station layout, train route, train running time deviation, passenger flow characteristics and individual behavior characteristics.The main conclusions of the dissertation are as follow.(1) the connotations of interchange level of service in urban rail transit system are analyzed, the influence factors and indexes of interchange level of service are explored. The influences of interchange station site and layout on level of service are analyzed, the principles of interchange station set selection and the applicability of different kinds of interchange layouts are explored. A viewpoint is proposed that the possibility of the implementation of multi train routing mode should be taken into consideration in the network planning stage according to its influence to interchange planning and operation organization.(2) Based on statistics of ATC (automatic ticket checker) data from actual cases, disequilibrium of passenger flow entering the station is discussed and values of super peak hours coefficient are calculated in time segments of various lengths using mathematical statistics methods, and the resolution shows that the disequilibrium gets more severe and the value of super peak hours coefficient gets larger while the length of time segment gets shorter. (3) Based on statics of train running time in section from actual cases, distributions of train running time in section and train time interval at station in non-delay situation are discussed. A method using normal distribution or lognormal distribution as approximate descriptions of the distribution of train running time in section is proposed, and the conclusion that lognormal distribution is better to describe the feature that the distributions of train running time in some sections are skew.(4) The passenger waiting time with different train routes and different interchange modes are discussed using descriptive geometry solution methods. Influence factors of passenger waiting time are analyzed, and calculation methods of average passenger waiting time in various situations are proposed.(5) Based on statistics of data of interchange passenger walking speed investigated, characteristics and influence factors of interchange passenger walking speed are analyzed, the conclusion that the lognormal distribution can be used to describe the distribution of passenger walking speed at a certain interchange facility approximately is proposed. Based on the analysis of the relationship between passenger walking speed and walking time, the conclusion that the lognormal distribution can be used to describe both the distribution of passenger walking time at a certain interchange facility and the distribution of passenger walking time during the interchange journey approximately is proposed.(6) Using methods of descriptive geometry solution and probability theory, the discipline of the changing of passenger interchange time under non-one-platform interchange mode are discussed, and a calculating method for the average passenger interchange time in the situation that the interchange passenger walking time follow lognormal distribution is proposed. Further, a revised calculating method for the average passenger interchange time considering the existence of deviation of train arrival time is proposed.(7) The assembling on platforms with different train routing plans and different interchange modes are discussed using descriptive geometry solution methods, and the calculating methods of maximum assembling on platform in various situations are proposed. Based on the analysis of the effect of deviation of train arrival time interval on assembling on platform in non-delay situation, a calculating method of maximum assembling on platform considering the existence of deviation of train arrival time is proposed.
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