Notice of Retraction Pedestrian flow's research of vertical walking facilities in urban rail transit

In order to improve the passenger organizational efficiency of the urban rail transit, evaluate the reasonable degree of facility layout in the station and improve the overall service level of rail transit system, this paper introduced the impedance function of pedestrian flow in urban rail transit station, which was derived from the BPR function of the U.S. Federal Highway Administration(FHWA), analyzed the impact factors, and fitted the impedance function model of passenger corridor in urban rail transit station using the measured data of pedestrian flow for escalators and stairway in Nanjing metro station. Then, Pedestrian Route Choices model between station platform and the station hall was developed. The results show that the impedance function model's fitting results are acceptable and it can provide a theoretical reference of operational decision-making such as the station's layout design.