Crowd evacuation macroscopic model-based T junction evacuation simulation method

A macro-model, T-junction technology, applied in design optimization/simulation, electrical digital data processing, data processing applications, etc., can solve problems such as no two-way pedestrian flow dynamics superposition mechanism, no known T-junction crowd convergence modeling method, etc. , to achieve the effect of improving simulation effectiveness, reasonable pedestrian density distribution, and comprehensive consideration of factors.

Active Publication Date: 2018-07-06
TONGJI UNIV
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Problems solved by technology

So far, macroscopic fluid dynamics models have mainly focused on the study of one-way pedestrian fluid dynamics models, and there are still some deficiencies: 1) There is no method for modeling crowd flow at T-junctions; 2) There is no two-way pedestrian flow dynamics superposition mechanism or Related mathematical models

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  • Crowd evacuation macroscopic model-based T junction evacuation simulation method
  • Crowd evacuation macroscopic model-based T junction evacuation simulation method
  • Crowd evacuation macroscopic model-based T junction evacuation simulation method

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0048] Such as figure 1 As shown, the present invention provides a kind of T-junction evacuation simulation method based on crowd evacuation macro model, comprising: establishing Aw-Rascle crowd dynamics model; On the basis of described Aw-Rascle crowd dynamics model, introducing the influence of intersection area matrix to construct a macroscopic model of crowd evacuation at a T-shaped intersection; perform numerical simulation based on the macroscopic model of crowd evacuation at a T-shaped intersection, and display the simulation results.

[0049] 1. Establishment of Aw-Rascle cro...

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Abstract

The invention relates to a crowd evacuation macroscopic model-based T junction evacuation simulation method. The method comprises the following steps of 1) building an Aw-Rascle crowd dynamic model; 2) based on the Aw-Rascle crowd dynamic model, introducing an influence matrix of an intersection region, and building a T junction crowd evacuation macroscopic model; and 3) based on the T junction crowd evacuation macroscopic model, performing numerical simulation, and displaying a simulation result. Compared with the prior art, the method has the advantages that actual conditions are met; a critical value of density can be quickly identified; a high-risk region can be located; and the like.

Description

technical field [0001] The invention relates to the technical field of crowd evacuation, in particular to a T-shaped intersection evacuation simulation method based on a macro model of crowd evacuation. Background technique [0002] The fluid dynamics model is one of the typical macroscopic pedestrian evacuation models, which has unique advantages in revealing nonlinear phenomena and macroscopic characteristics of crowd motion. The fluid dynamics model was developed from the theory of pedestrian traffic flow. Predtechenskii and Milinski explored pedestrian traffic flow, and found that the speed of pedestrians is inversely proportional to the density through observation and investigation. Pedestrian traffic flow theory began in the late 1950s, and its main stage results were Henderson’s investigation of pedestrians of different ages and genders. In the early 1970s, the fluid dynamics model was first used to study pedestrian traffic. By analogy with the motion of fluid parti...

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Application Information

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IPC IPC(8): G06F17/50G06Q50/26
CPCG06Q50/265G06F30/20
Inventor 赵荣泳汪栋胡钱珊李翠玲董大亨
Owner TONGJI UNIV
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