| As the rapid development for urban railway transit industry in China,the traffic jam problem has been released effectively.At the same time,the non-matching problem and unconscionability caused by inner facility in railway transit station and passenger flow have also been revealed.In order to supply more high quality service and attract more passengers,some allocated facilities,including entering and leaving automatic fare collection,stairway and passageway,are deeply focused in this paper for optimization.The research results can be the basis for ascertaining entering and leaving facility in planning of urban railway station and reference for making standard of urban railway transit industry.Firstly,some passenger_traffic characteristics in three sorts of entering and leaving facilities are analyzed,such as speed,density,flow and time relationship.Besides,some behavior characteristic affected by facility physical parameters and capability are also researched.Secondly,according to queueing theory and traffic flow theory,the queueing system is studied in this paper aiming at passenger queueing phenomenon in AFC at rush hour.And then estimating targets for optimizing facility allocation are put forward. The queueing mechanism in stairway is researched to analyze evacuating effect of different combinations of stairways.The slide fastener effect,which can be seen in passageway bottle neck,is also studied to analyze passageway layer and passing ability.At last UML modeling language is used to set simulation model for queueing system in entering and leaving AFC.The optimization method combined with genetic algorithm and simulation technology is advanced.In this paper Wangfujing subway station is researched as an example.The most optimum amount of AFC and combination of stairway and auto-stairway are ascertained and allocated.The cushion area in passageway bottle neck is designed.All sorts of facilities are allocated for optimization.
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