Random disturbance-oriented crowd flow simulation method and device in waiting hall of transportation hub
A random disturbance, transportation hub technology, applied in sustainable transportation, design optimization/simulation, special data processing applications, etc., can solve problems such as crowd flow interference, luggage dynamic obstacles, insufficient to meet practical applications, etc., and achieve iterative calculation speed. quick effect
Active Publication Date: 2022-07-05
TONGJI UNIV
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[0003] So far, there are still some deficiencies in the simulation modeling of pedestrian flow based on macro model theory: 1) Random disturbance is a common phenomenon of crowd flow disturbance, such as: crowd hedging, pedestrian falling, luggage dynamic obstacle, violent terror, epidemic panic etc., but the existing dynamic simulation modeling does not take these disturbance factors into consideration
2) There are not many large-scale crowd dynamics simulation studies with more than 10,000 people, which are not enough for practical applications
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[0117] In order to verify the validity of the model, according to the pedestrian flow simulation model based on fluid mechanics proposed in the present invention, this embodiment provides simulation display diagrams of two typical scenarios.
[0118] Simulation scene 1: The simulation scene is 30m×30m, the exit is directly above, and the crowd is distributed at 1 / 2 below the scene at the beginning. When Step=150, the crowd distribution is as follows image 3 shown.
[0119] Simulation scene 2: The simulation scene is a square area of 30m×30m, with an exit of 2cm on the left and right. The initial crowd in the middle of the scene is 300 people, and the total flow time is about 1.2 minutes. When Step=150, the crowd distribution is as follows Figure 4 shown.
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The invention relates to a random disturbance-oriented crowd flow simulation method and device in a waiting hall of a traffic hub. The simulation method includes: establishing a crowd evacuation macro-dynamics model based on fluid mechanics, the model including a continuity equation and pedestrian path selection conditions; A random disturbance is added to the crowd evacuation macro-dynamic model to obtain a crowd flow disturbance model; the crowd flow disturbance model is used for crowd flow simulation, and the simulation result is displayed. Compared with the prior art, the present invention has the advantages of high simulation accuracy, conforming to actual needs and the like.
Description
technical field [0001] The invention relates to the field of crowd evacuation simulation, in particular to a random disturbance-oriented crowd flow simulation method and device in a waiting hall of a traffic hub. Background technique [0002] In recent years, crowd stampede incidents have occurred frequently. In order to avoid more such tragedies, it is urgent to study the evolution and development law of pedestrian flow, analyze the macroscopic characteristics of crowds in pedestrian flow, and the interaction mechanism between groups, so as to timely and effectively Manage large-scale pedestrian movements. At present, the theory and simulation modeling of pedestrian flow are developing rapidly. The traditional pedestrian flow model is divided into micro model and macro model. The macro model is easier to describe the large-scale traffic system than the micro model, the iterative calculation speed is fast, and it can interpret traffic well. Macroscopic and dynamic traffic p...
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IPC IPC(8): G06F30/20
CPCG06F30/20Y02T90/00
Inventor 赵荣泳贾萍王妍刘琼李翠玲张智舒
Owner TONGJI UNIV
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