The Research On Evacuation Decision-Making Under The Influence Of Social Relationship

Developed economy and advanced civilization can’t cover up the threats and fear which caused by the natural disaster, chemical accidents and public health incidents. Evacuation decision-making made in the face of such incidents is very important to the shelter for disaster rescue and emergency management research. Therefore, it is necessary to study the evacuation decision-making, so as to provide theoretical basis and practical basis of emergency management.People are "social man", as the limited rational individual, the social relations will influence and even change their decision. In previous studies, there are few researchers who directly analysis the influence of social relationship for evacuation decision-making. This paper will take this as the research point. This paper is divided into two parts to study the evacuation decision problems, in order to reveal the evacuation decision-making rules that reflect the individual psychological characteristics.In the first part, starting from the asylum psychological characteristics of the decision makers, the author calculate the prospect value using the cumulative prospect theory, in order to get the initial value solution. Cumulative prospect theory is based on prospect theory; it can not only reflect the decision maker to psychological characteristics of profit and loss, also make up for the lack of prospect theory in the extreme event processing. Then, the author affected the social relations into the calculation, to determine the final value of refuge plan through the weights, which reveals the refuge selection of decision makers.The second part, the author studies the influence of social relationship on the evacuation decision change. In order to simulate the network of social relations, the author puts forward network construction method based on complex network theory, and on this basis, use the improved opinion dynamic model to simulate evacuation decision evolution. Through simulation, we get the evacuation decision evolution rules and influencing factors.In the end, combining the results of two parts of the front with practice, the author puts forward the advice and measures, in order to affect evacuation decision making, to guide the evacuation decision evolution and to prevent vicious decision diffusion. For the establishment of contingency plans, quickly and accurately implement post-disaster rescue provides important reference. The conclusion of this paper provides important reference for setting up emergency plans and carrying out rescue work after disaster.