Transport Capacity Bottlenecks Identification of Urban Rail Transit

The huge passenger flow makes transport capacity bottleneck problems becoming increasingly prominent , and has a bad impact on the system operating efficiency .In order to better analyze the problem ,this paper puts forward a recognition model on station static bottleneck ,and studies on station dynamic bottleneck by making use of capability utili-zation formulas as well as AnyLogic simulation software .Then this paper establishes a kind of line bottleneck analysis method based on passenger flow .Furthermore ,this paper also analyzes the dynamic transmission rules of bottlenecks . Finally ,the case study results show that the station bottleneck of FUXINGM EN Station emerges in the transfer stairs , while the Line 2 interval capacity utilization is balanced ,and its line bottleneck is generated between JIANGUOMEN Sta-tion and CHAOYANGMEN Station .Considering the characteristics of station and line ,this method puts forward corre-sponding bottleneck identification thoughts ,and it proves to be of practical value .