Research on time series planning model of urban regional evacuation based on improved cellular automata
In order to solve the problem of effective evacuation of large-scale urban crowds before the disaster,the traditional cellular automata evacuation model was improved by considering the influence of actual road network,population and other factors on evacuation.A time series planning model of urban regional evacuation was constructed with the goal of minimizing the overall evacuation time of each evacuation group and avoiding congestion,and a certain riverside area in Wuhan was se-lected for evacuation simulation to verify the effectiveness and applicability of the prominent model.The results show that the proposed model can significantly reduce the overall evacuation time and road congestion probability of each evacuation group,and obtain specific staged evacuation schemes at the same time.The research results can provide reference for the develop-ment of urban disaster response plans and the construction of disaster scenarios.
urban public safetystaged evacuationcellular automataplanning model