Implementation of social force pedestrian simulation model by molecular dynamic method

The principle,current research and existing problems of social force model for pedestrian simulation are summarized in this paper.Gear's predictor-corrector method in molecular dynamic is applied in social force method.According to Courant-Friedrichs-Lewy condition,the minimum time step for explicit method pedestrian simulation is determined,and the linked-list cell method is proposed to accelerate computing.Then the framework of programming for the method is designed and the simulation method is realized.The simulation test recreated some pedestrian self-organization phenomena including lane formation.Simulation result demonstrates that deceleration and collision avoiding mechanism results in more realistic outcome,and the link cell method can reduce simulation time significantly.