Evacuation Simulation Method of T-shaped Intersection Based on Macro Model of Crowd Evacuation

A macro model, technology of T-junctions, applied in design optimization/simulation, data processing applications, instruments, etc., can solve problems such as the crowd convergence modeling method for T-junctions, the superposition mechanism of two-way pedestrian flow dynamics, etc. have not yet been seen

Active Publication Date: 2021-05-11
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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  • Evacuation Simulation Method of T-shaped Intersection Based on Macro Model of Crowd Evacuation
  • Evacuation Simulation Method of T-shaped Intersection Based on Macro Model of Crowd Evacuation
  • Evacuation Simulation Method of T-shaped Intersection Based on Macro Model of Crowd Evacuation

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[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 present invention relates to a kind of evacuation simulation method of T-shaped intersection based on crowd evacuation macroscopical model, comprise the following steps: 1) establish Aw-Rascle crowd dynamics model; 2) On the basis of described Aw-Rascle crowd dynamics model, introduce intersection The influence matrix of the area is used to construct a macroscopic model of crowd evacuation at the T-shaped intersection; 3) numerical simulation is performed based on the macroscopic model of crowd evacuation at the T-shaped intersection, and the simulation results are displayed. Compared with the prior art, the present invention has the advantages of conforming to the actual situation, being able to quickly identify the critical value of the density, and completing the positioning of the high-risk area.

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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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q50/26
CPCG06Q50/265G06F30/20
Inventor 李翠玲赵荣泳汪栋胡钱珊董大亨
Owner TONGJI UNIV
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