An improved social force evacuation model with grouping and guiding

Crowd evacuation simulation is of great significance for strategy design in emergency, resulting in serious injuries and casualties. A majority of existing evacuation models overlooked the interactions and influences between pedestrians. Therefore, a crowd evacuation model based on grouping and guiding was come up with, which is based on an improved social force model. The improved model optimized the trend selecting strategy of movement and added a force called relationship attractive force. The movement is determined by pedestrian's trend and composite force. According to the results of experiments, this proposed model can realize that pedestrians having intimate relationships with each other would get together gradually in process of crowd evacuation and made the effects more realistically. Copyright © 2015 Binary Information Press.