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Iterative simulation method of macro-model for crowd evacuation

A technology of macro model and simulation method, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as poor authenticity of simulation results and large differences in simulation results, and achieve clear and intuitive understanding

Active Publication Date: 2018-12-21
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

[0004] So far, for the research on the simulation method of crowd evacuation, there are still some deficiencies in the existing simulation methods, such as the large difference between the simulation results and the real situation, and the poor authenticity of the simulation results.

Method used

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  • Iterative simulation method of macro-model for crowd evacuation
  • Iterative simulation method of macro-model for crowd evacuation
  • Iterative simulation method of macro-model for crowd evacuation

Examples

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Embodiment

[0082] In this example, the T-shaped intersection crowd evacuation dynamics model is used to study the Mecca stampede event in 2015, and the stampede at the T-shaped intersection between 204th Street and 223rd Street (204-223 junction) is reproduced through simulation event, the location of the stampede event as Figure 4 shown. At 0600 hours (09:09 GMT) in 2015, the stampede occurred at the T-junction of 204th Street and 223rd Street. Initially, the crowd was mainly distributed in Street 204, and moved forward in turn to perform the Hajj. The bus on the 223 street took a group of passengers. When this group of people entered the intersection of the 223 and 204 streets, the crowds in the two directions collided, and the collision caused the crowd to fall and stampede. However, the crowd behind did not understand the front The congestion, which continued to advance, led to a widespread stampede among the pilgrims.

[0083] According to the actual parameters of the stampede a...

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Abstract

The invention relates to an iterative simulation method for a macro model of crowd evacuation, comprising the following steps: 1) establishing Aw-Rascle population dynamics macro-model; 2) initializing the Gaussian distribution of pedestrians base on the terrain environment; 3) Iterative simulation being carried out based on the initialized Gaussian distribution of the pedestrian flow and the Aw Rascal crowd dynamics macro model, and the simulation result being displayed. Compared with the prior art, the iterative simulation method adopted by the invention can make the simulation effect closerto the real situation, and has the advantages of high simulation result precision.

Description

technical field [0001] The invention relates to the field of crowd evacuation simulation, in particular to an iterative simulation method for a macro model of crowd evacuation. Background technique [0002] In recent years, with the rapid development of social economy, large-scale crowds often gather in public places. Generally speaking, in crowded places, evacuation has always been a difficult problem, and safety hazards have become increasingly prominent. Emergencies such as crowding and stampedes in congested environments have caused heavy losses of life and property. Therefore, how to avoid congestion events in crowded scenes and reduce the loss of life and property has always been a hot issue in the field of security research. With the development of science and technology, crowd motion simulation technology has become a research hotspot. By means of simulation, the behavior law of crowd evacuation is simulated and studied, and its advantages such as low cost are of g...

Claims

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Application Information

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IPC IPC(8): G06F17/50G07C9/00
CPCG07C9/00G06F30/20
Inventor 赵荣泳董大亨胡钱珊李翠玲汪栋
Owner TONGJI UNIV
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