Study on the Influencing Factors of Small Groups in Crowd Evacuation Based on DEMATEL-ISM-MICMAC Method
In order to explore the multi-factor interaction problem of small groups in the crowd evacuation,the small group influencing factors were analyzed based on the DEMATEL-ISM-MICMAC method.Firstly,the influencing factors of small groups were sorted out,and the direct influence matrix was obtained based on the DEMATEL model,and the comprehensive influence matrix was constructed to determine the influence degree,affected degree,centrality degree and cause degree of each influencing factors.Secondly,the ISM method was used to determine the relationship between the influencing factors,draw the reachable matrix,and decompose hierarchically the obtained results into three levels:surface,middle and deep.Fi-nally,the MICMAC method was used to divide the attributes of each influencing factor into autonomous elements,dependent elements,contact elements and independent elements,and the influencing factors of small groups were further verified and analyzed.The results show that the influencing factors of small groups do not exist independently,but are interrelated and in-teract with each other.Among them,"leadership position"and"group size"have a greater impact on the crowd evacuation.This study can provide a theoretical basis for the small group model construction and the evacuation management.
small groupinfluencing factordecision-making trial and evaluation laboratory(DEMATEL)interpretative structural modeling method(ISM)cross-impact matrix multiplication applied to classification(MICMAC)
万方数据
维普
