其他摘要：Based on the theory of social force model, this paper aims at the pedestrian flow up-and-down stairs during the break in one teaching building of Taiyuan University of Science and Technology as the research object. The 3D modeling software 3ds Max and virtual engine Unity3D are used to simulate the pedestrian evacuation. The influence of different densities and different evacuation strategies on evacuation efficiency is explored. The simulation results show that with the increase of density, the fact that pedestrians go up and down stairs in a random walking will inevitably cause a significant decline in evacuation efficiency. In reality, when the density is large, to apply the rules “left down and right up in one stairs” or “down on left stairs and up on right stairs for two stairs” can improve the evacuation efficiency. The results obtained can be referred in designing the evacuation schemes for crowds in a teaching building.
