Papers by Author: Rui Hua Xu

Abstract: The emergency disposal of urban rail transit needs to accurately estimate the emergency range and total affected passenger flow volume. The urban rail transit network could be simplified to an abstract model which is easy to be analyst based on the graph theory method. Considering the actual network back-turning lines and vehicle storage tracks of urban rail network, the emergency range could be estimated effectively. The affected passenger flow could be classified as different kinds based on the different paths of passenger flow. The classification of passenger flow mainly includes “delay passenger flow”, “detour passenger flow” and “loss passenger flow”. Considering the emergency range, the different affected passenger flows could be superposed over time based on the abstract model, then the affected passenger flow volume and virtual loss time could be calculated out. The results could provide basis for the emergency disposal in urban rail transit. The example analysis is verified the feasibility of this method.

Abstract: This paper proceeds from safety which is fundamental guarantee of rail transit sustainable development with the special environment of stations to analyze effects of passengers’ psychologies and behaviors and information of the emergency in the process of emergency evacuation, and studies the game features passengers and ‘emergency event’ and passengers in between. Firstly, single passageway is studied. Then the concept of relative density is presented, the relationship among evacuation time with passenger flow volume, running velocity of passengers, density, length and width of passageway are found out. Finally suggestions are made on contingency measures against the emergency.