Topic
Evacuation process simulation
About: Evacuation process simulation is a research topic. Over the lifetime, 3 publications have been published within this topic receiving 19 citations.
Papers
TL;DR: The presented method can provide estimations on occupant evacuation process and occupant casualties in a more accurate way and provide after-earthquake occupant casualty distributions in the building.
Abstract: Knowledge of occupant evacuation process in a building presents engineers with an efficient way of testing the rationality of the building design before construction. Meanwhile, it benefits to the occupant casualty estimation in the building under earthquakes, which has been an essential problem in the performance-based earthquake engineering methodology. The cellular automata model is adopted to simulate the occupant movements in the building. The factors including the behaviors of directional moving to exits, directional moving with crowds, and the competitive phenomenon to a position are included in the model. Evacuation processes at different regions of the building containing room, corridor and staircase are considered and effects of model parameters, competition, exit width, and occupant density are studied. The building collapse under earthquakes is simulated by explicit finite element method. The occupant casualties in an earthquake are evaluated by coupling the building collapse simulation and evacuation process simulation with time and space synchronization. A casualty occurrence criterion is defined using relative displacement. Comparing with existing methods, the presented method can provide estimations on occupant evacuation process and occupant casualties in a more accurate way and provide after-earthquake occupant casualty distributions in the building. Fragility functions of casualty and death caused economic loss are also provided.
25 citations
28 Dec 2009
TL;DR: The results indicate that the program CARUN can simulate the evacuation in carriage appropriately and some practice phenomena related to the different human behaviors could be observed.
Abstract: A cellular automata model (CAM) is presented to simulate the passenger evacuation of carriage in an emergency. Some special algorithm is introduced considering simple human judgment to make the rules more reasonable. Based on the above model, a program CARUN is developed. Considering the special geometry and boundary conditions, the simulation of the evacuation process for the passenger in carriage is performed. And effects of some important factors were emphatically discussed such as judgment criterion for biased exit, the number of the persons, and person distribution positions. Evacuation times for different scenarios were obtained and analyzed comparatively. The results indicate that the program CARUN can simulate the evacuation in carriage appropriately and some practice phenomena related to the different human behaviors could be observed.
3 citations
TL;DR: In the process of evacuation, guides are added to make real-time direction guidance for agents, which can greatly improve the efficiency of evacuation.
Abstract: As it is impossible to simulate the whole process of evacuation in case of emergencies, based on the analysis and comparison of existing evacuation simulation models, considering the intelligence, interaction and autonomy of agents, multi-agent technology is introduced to model the emergency evacuation model. In this model, the evacuation space is divided into equal squares. In the decisionmaking process of selecting the evacuation exit, the distance from the individual to the exit, the number of people in the field of vision, the number of obstacles and the relevant density are comprehensively considered. No guide, fixed instructions and guidance for the three cases of evacuation process simulation, in the simulation, considering the number of the position and exit, simulation results showed that increasing the exit quantity and the width , In the process of evacuation, guides are added to make real-time direction guidance for agents, which can greatly improve the efficiency of evacuation. The research has very important reference significance for formulating scientific and reasonable emergency evacuation plan and reducing various losses caused by disasters.
2 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2019 | 1 |
| 2015 | 1 |
| 2009 | 1 |