Balanced crowd evacuation method for asymmetric safe passages of public building

Abstract

The invention discloses a balanced crowd evacuation method for asymmetric safe passages of a public building. Meshing is carried out according to distribution of crowd and barriers in the building, a balanced evacuation adjustment model of safe passages is established via a simulated crowd evacuation model in which congestion factors is introduced, an evacuation scheme which is determined by simulating certain groups of congestion factors based on the simulated model, a training sample and an examination sample of a BP neural network model are obtained, an evacuation scheme optimal model is constructed based on a manual neural network model and a crowd evacuation simulated model, an evacuation scheme which is determined by a group of congestion factors of better effect is screened, personnel evacuation selection areas are divided, people in the same evacuation selection are assigned to evacuate in the same safe passage, and finally a concrete crowd evacuation scheme is made aimed at the building. It is ensured that rapid and safe evacuation can be completed in the building with asymmetric safe passages.

Description

technical field [0001] The invention relates to a method for balanced evacuation of crowds in non-symmetrical safe passages of public buildings. Background technique [0002] With the increasing number of cultural and sports activities in today's society, the gathering activities of a large number of people have also increased, and the occurrence of serious stampede accidents has become more frequent. Regions are a priority. The first step in crowd evacuation is to choose a safe exit. The crowd generally chooses a safe exit based on the principle of "shortest distance". Because in many buildings, safe exits may not be arranged according to the distribution of the crowd, such as gymnasiums, concert halls, etc. Meetings, movie theaters, schools, large lecture halls, libraries, etc., there are many evacuated people around some exits, and very few people need to be evacuated around some exits. Once an emergency occurs and it is urgent to choose a safe channel to evacuate, it is...

AI Technical Summary

Problems solved by technology

However, at present, many emergency evacuation plans at home and abroad are to guide personnel to evacuate according to the shortest path, help personnel find the exit location in time, and ensure safe evacuation through emergency facilities. A method to balance the evacuation tasks of each channel and make the evacuated crowd evacuate in a targeted manner

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