Modeling and Simulation of Subway Station Emergency Evacuation Based on Improved Social Force Model

In order to study the effect of panic state combined with small group behavior on the evacuation efficiency of Metro Emergency crowd. This paper introduces the panic emotion factor based on the classical social force. We modify the expected speed to improve the expected speed of small groups. We build a social force model of small group effect under panic behavior, and take an accident of a subway station as an example for group simulation evaluation. The improved model is more close to the actual situation of Group Evacuation pedestrian movement, which has guiding significance for Metro emergency evacuation.