A Model of High-Density Passenger Boarding and Alighting in Urban Rail Transit Station

Passengers’ boarding and alighting is an important link between station and the train in urban rail transit system. The paper presents features of boarding and alighting of passenger flow. A model was established with two continuity equations and a formula. In that model, continuity equations about boarding and alighting are deduced based on these two characteristics, revealing the relationship between time and density. The formula of resultant about passenger flow during their boarding and alighting activities is aimed at exposing the main direction of the whole procedure. What’s more, the model was applied to Chongwenmen station in Beijing subway Line 1, the model is simplified for simulation by a mathematical application software-MATLAB, graphing directly. The result is formally described and experimented in experimental and real-world situation, which is proved to be correct and reliable. The model provides the theory foundation for safer process of boarding and alighting for actual operation and plays an important guiding meaning in daily management.