Abstract: As the underground environment is multilayered, more confined space underground, there are many services and facilities, so that when people evacuate the subway, they will have a variety of features and choices. Path probability selection of underground pedestrian evacuation is discussed. In the first stage, models are used to plan several routes. In the second stage, according to the data of real time passenger flow of the railway station, the density of passenger flow is taken as a variable to obtain the time of pedestrian evacuation through different facilities. The traffic capacity of every passage and facility in the station is calculated by the model so that the ratio of the passengers’ choice can be figured out. The results show that the research can be helpful to optimize the layout of facilities and improve the services of the subway station, and ensure the safe evacuation of passengers in emergency.

Key words: pedestrian evacuation, path selection, evacuation time, simulation