The Applied Research Of Urban Transit Network Based On The Complex Network With The Stochastic Condition

Urban traffic system is a complex and classical system, most daily travels of urban residents can not operate without urban public transit. Urban traffic problem will also be a huge challenge for public transit system which is a significant part. In this paper, the stochastic property research of public transit network was completed. With the uncertainty of passenger travel choice and demand, the transfer evaluation model and service reliability model were established under the stochastic conditions. Then the synchronization and the simulation of time-delay transit route network was discussed. For the transit routes and transit stations of Lanzhou, we analyzed the models and obtained the scheduling schemes. This research had a very important theoretical and practical significant on optimizing the urban transit scheduling scheme, retarding the traffic jam and improving the service reliability of network.This paper mainly studied these contents as follows:(1) The research of related literature at home and abroad was summarized and the the research of the complex network and public transit network was analyzed, then the main content in this paper was raised based on the research before.(2) Some basic conceptions about complex network were introduced including the static geometric features and the statistical features. The urban transit network was also classified based on the complex network and the synchronization method was studied.(3) The influence of the transfer evaluation model with the stochastic choice condition was analyzed on the basis of traffic travel transfer network. Selecting the travel conditions greatly influenced by three factors, namely the travel cost, travel time, travel comfort factor and setting up a travel evaluation model. The travel results and evaluation because of the stochastic choice of travel passengers during the whole travel process were studied. Finally,the effectiveness of this model was verified by data analysis and case.(4) In this part, the service reliability model of public transit network with stochastic demand was established. The service model with certain demand and the two-stage stochastic model with uncertain demand were put forward. This model not only embodied the choice strategy, but also reflected the relation between stochastic demand and the service reliability.It will optimize the service design during the network travel. By specifying the uncertain parameter of service reliability model with two-stage descent method, the two-stage stochastic scheme was solved. At last, the feasibility and the practicability of this model is analyzed.(5) we studied the synchronization and the simulation of time-delay transit route network,then took some Lanzhou transit routes as an case to analyze and get corresponding scheme.