Passenger And Environment Interaction Theory Of Urban Rail Transit Hubs

Effect of urban transportation network depends on the coordination and cooperation of transport corridor and transport hubs. Design and operation level of urban transport hubs has direct effect on the operation efficiency and service level of urban transportation network. Currently, urban transport system is becoming a network with complicated passenger flow condition. Therefore, interactive effect of hub environment and passenger movement must be introduced and considered as factors in the hub design and evaluation. In this dissertation, on the basis of passenger and environment interactive mechanism study, a passenger-environment interactive model was developed and the dynamic interactive effect between hub environment and passenger movement was analysed. Then, a dynamic evaluation methodology based on passenger- environment interactive relationship was presented for the purpose of meeting passenger demand and improving operation efficiency. The study in the dissertation provides theory and method support to the scheme making and practice of hub plan, design and operation.First, on the basis of current situation of urban rail transit hub design and evaluation, the concept and importance of passenger-hub interaction theory system was proposed. Study on interaction between passenger movement and hub transportation environment should be done on three levels, and be applied on hub service evaluation.According to detailed statement of art-of-work about pedestrian and passenger theory and hub service evaluation, interactive mechanism of passenger, equipment and organization was studied. A passenger - environment interaction micro-simulation model was developed by potential field theory. Environment potential field and individual potential field were defined to model passenger walking, route choice, alighting and boarding movement. According to mass movement, self-organization and specific hub behavior comparison, experiential data, theory description and field data were used for the model verification and validation.Combining passenger-environment interactive model and simulation, typical scenario experiment method was proposed for the study of interactive effect between hub environment and passenger movement. According to the analysis of passenger circulation, transfer and jam performance, factors and rules which influence, reflect and measure the coordination relationship of interactive objects were studied. Hub passenger calming effect of intension, density and speed was presented as theory basis for optimization strategy.On the basis of passenger-environment interaction model and effect characteristics, a dynamic evaluation methodology was defined and presented. An evaluation index system including 5 service function aspects was established, which were facility utilization, efficiency and convenience, flowing, safety and cooperation. Hub circulation condition analysis was introduced in the dynamic description of network and effect between hubs. Analysis method for index characteristics was applied on the data disposal.On the basis of theory study, a dynamic evaluation software based on Agent was developed. The software was composed of 5 function modules: Setup, Main, Control, Analysis and Output. Passenger - environment model and evaluation system were integrated in the software.The last but not least, Beijing Xuanwumen metro station and Beijing south railway station were selected as case study. The two cases represent continuation hub and new hub. Cases study was presented for theory application.