Simulation of Evacuation in Crowded Places Based on BIM and Pathfinder

Abstract

Densely-populated public areas with high concentration of people have many potential hazards for its high difficulty in evacuation. Once an emergency occurs, it is easy to cause crowd panic and casualties. Therefore, research on the building characteristics and evacuation methods for densely-populated areas can provide reference and the emergency plan preparation for emergencies. Taking the central building of the Women and Children’s Health Hospital in a certain city as the research object, the simulation and analysis of the evacuation process in the three-dimensional building scene are carried out based on BIM modeling and Pathfinder simulation software. The results show that due to the special proportion of people in the building, appropriately increasing the width of the evacuation doors near the evacuation stairs and fire elevators, clarifying the responsibilities of medical staff, and controlling the escape speed of people in different areas can significantly improve the evacuation efficiency.