An Evacuation Planning Method for Disaster Emergency

Abstract

The invention relates to an evacuation planning method and evacuation planning system oriented to disaster emergency. By establishing a virtual force field, the complex large-scale evacuation problem is described by a force field function, and the evacuation of personnel is determined by the negative gradient direction of the force field function. It solves the problem that it is difficult to model the complex disaster environment, makes the problem description simple, and improves the calculation efficiency of the algorithm; it can also take into account the factors that affect emergency evacuation planning, such as the location of people to be evacuated, the distribution and capacity of shelters, etc. Internally, timely evacuation guidance is provided for the people to be evacuated, and in the process of solving the algorithm, the real-time remaining capacity parameters of the emergency refuge are used as the gravity coefficient, so that the capacity of the refuge reaches a balanced state during the entire evacuation process, saving a lot of evacuation. Over time, with the increase in the number of evacuated people, the advantages of the algorithm become more and more obvious.

Description

technical field [0001] The invention relates to a disaster emergency-oriented evacuation planning method and an evacuation planning system, belonging to the technical field of disaster protection. Background technique [0002] In recent years, various disasters that are difficult to predict and control have broken out frequently, bringing painful disasters and huge economic losses to human beings, some of which have huge and far-reaching impacts. In 2005, Hurricane "Katrina" swept across Florida and the coast of the Gulf of Mexico, causing more than 1,800 deaths, millions of people homeless, and economic losses of more than 34 billion U.S. dollars; The earthquake triggered a huge tsunami, which caused heavy casualties and property losses. The earthquake and tsunami also hit the Fukushima nuclear power plant, triggering the largest nuclear leak since the Chernobyl nuclear leak, and the number of emergency evacuations These large-scale disasters have led to large-scale group ...

AI Technical Summary

Problems solved by technology

Macroscopic evacuation research focuses on large-scale evacuation, but lacks the consideration of humanized evacuation; microscopic evacuation research mainly focuses on the evacuation of small-scale crowds in an indoor environment, but lacks consideration of the allocation of refuge places at the macro level, and is not universal

[0006] (3) There are many factors that affect emergency evacuation planning, such as the location of people to be evacuated, road congestion, the distribution and capacity of shelters, etc., but the existing research usually only considers unilateral or certain factors, and then affects The scientific nature of the research, and the lack of practical application

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