AUTHOR=Fang Han , Lv Wei , Cheng He , Li Xiaolian , Yu Bingjie , Shen Zhongwei 

TITLE=Evacuation Optimization Strategy for Large-Scale Public Building Considering Plane Partition and Multi-Floor Layout

JOURNAL=Frontiers in Public Health

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2022.847399

DOI=10.3389/fpubh.2022.847399

ISSN=2296-2565

ABSTRACT=Large-scale public buildings such as stadium and comprehensive hospital in modern cities are comfort and convenient providing conditions for various social activities. However, all of these public places would encounter the scenario of large passenger flow and crowd gathering, which is highly likely to induce serious safety problem such as stampede. Previous studies have shown that efficient evacuation is an important way to ensure the safety of dense crowds in public places. This study is aimed to explore the optimization methods to improve the evacuation efficiency of public buildings. Two strategies considering plane partition and multi-floor layout are proposed for plane evacuation and vertical evacuation respectively. Simulation scenarios and models of large stadium and high-rise hospital are established to verify the strategies. The results show that plane partition could effectively shorten the total evacuation time, which is due to the optimization of the initial exit choice of individuals and the avoidance of regional congestion in some evacuation channels or exits. Multi-floor layout optimization is an effective management method to arrange the different features of different floors, which could improve the evacuation efficiency for the whole multi-floor building. This study is helpful for building designers and managers to improve the building space layout design and the daily safety management mode.