Research On Stadium Evacuation Based On Social Force Model

Sports venues as one of the common venues for holding large-scale events and activities.Due to the large number of participants and the complex structure of the venue,crowding and stampede accidents are highly likely to occur,posing a serious threat to the safety of people’s lives and property.Due to the complexity of personnel composition,in the process of emergency evacuation,there will be retrograde behavior formed by some people to protect their families,find valuables,help others escape danger,and save vulnerable groups.The occurrence of retrograde behavior may lead to crowded personnel and trample accidents.Therefore,it is necessary to study the reverse behavior of the individual in the process of evacuation and discuss the impact of the behavior on the effect of evacuation.In order to avoid the recurrence of such accidents as much as possible.Firstly,research on retrograde behavior that often occurs during evacuation.By studying retrograde features,the individual retrograde behavior was divided into two types: static target retrograde behavior and mobile target retrograde behavior,established an individual decision-making model for retrograde behavior based on the social force model,simulating and reproducing retrograde behavior occurring in evacuation scenarios by using computer simulation technology and based on simulation experimental results,studying the impact of this behavior on personnel evacuation.Then a study was conducted on another common behavior in venues-group behavior,and combining with the retrograde individual characteristics from the previous chapter.The group behavior was divided into small groups without retrograde small groups and small retrograde groups,and establishing group evacuation decision-making models separately.Secondly establishing an individual exit selection model for multi exit venues.Using sports venues in real environments as evacuation simulation scenarios,realizing the simulation of small group retrograde behaviors and discussing the impact of the behavior on evacuation efficiency.Finally,the evacuation characteristics of individuals in emergency situations and the maximum crowding force that a person can withstand were analyzed and elaborated.Establishing an evacuation simulation model of individual retrograde behavior in emergency situations,and simulating the individual retrograde behavior in sudden situations.Summarizing the impact of this behavior on the evacuation process based on experimental results.According to experimental results,it can be confirmed that the individual retrograde evacuation model based on social force model proposed in the article is feasible,and it can well simulate the evacuation process in real situations.