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.
CN108256152AActive Publication Date: 2018-07-06TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2018-07-06

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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.
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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...

Claims

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