| One of the elements of safe airport construction is to have a safe security system,so that the airport can operate safely and smoothly.As a highly crowded area,the airport terminal departure hall is characterized by long evacuation trips and difficult to judge evacuation paths as an evacuation scenario,the study of emergency evacuation management of airport is helpful to the emergency evacuation of airport passengers and the healthy development of civil aviation.Therefore,this thesis takes the terminal departure hall as the research object and optimizes the emergency evacuation of passengers in the airport terminal departure hall,aiming to provide a safe and efficient evacuation plan for the airport in response to emergencies.For the evacuation problem in case of emergencies,the vast majority of passengers randomly choose the shortest path from the exit to escape,which will lead to congestion at some nodes and prolong the evacuation time.Therefore,this thesis propose a better evacuation method considering the dynamic change in the spatiotemporal congestion of passengers.First,this thesis constructs an evacuation network diagram for the departure hall of the Shenzhen Bao’an International Airport terminal building,simplifies the evacuation process into point-to-point evacuation,and proposes a shortest path algorithm for time-varying networks to optimize the emergency evacuation of the airport.Second,on the premise of obtaining the number and dynamic distribution of passengers in each area in real-time,a linear programming model with the shortest evacuation time as the optimization objective is established,and the current optimal evacuation path of passengers is dynamically calculated.Finally,the two evacuation methods,random evacuation,and evacuation based on a shortest path algorithm for time-varying networks are simulated and analyzed by Anylogic software.The results show that the evacuation scheme based on the shortest path algorithm for time-varying networks can effectively relieve the passenger congestion of some evacuation paths and safety exits.The evacuation time is reduced by 74 s,the evacuation efficiency is improved by 14%,passenger congestion at some evacuation routes and safety exits can be effectively relieved,and the global optimization of the emergency evacuation of passengers is achieved. |
