Simulation Of Heterogeneous Pedestrian Dynamics Based On Group Behavior

Study on the simulation of pedestrian flow is widely used in the field of group dynamics, social science, structural engineering and so on, which can through the way of evaluation prediction and retrieval research guide the planning and design of pedestrian traffic facilities, to circumvent facilities exist in hidden spots, a reasonable guide for pedestrian flow and avoid the pedestrian stampede accident. For example, the pedestrian traffic facilities planning, design and evaluation, the large pedestrian cluster gathering place like traffic hub station, gymnasium, business center of safe evacuation design work, etc. Combined with previous pedestrian stampede accident analysis can be found that the cause of accident is often is the specific pedestrians in line flow of individual local behavior continues to spread, finally caused irreversible crowded stampede, so for the simulation study of pedestrian flow also need emphatically to focus on the specific pedestrian attributes of the differences to focus attention. And the simulation study generally see pedestrians as strategy is exactly the same properties and behavior of individuals, which makes the simulation model is easy to understand, calculation efficiency, but weakened the contribution of individual characteristics on the pedestrian group dynamics, the differentiation of pedestrian attribute needs to be further researched urgently in the influence on the pedestrian group dynamics; and for existed generally in the population of meso pedestrian peer group, nowadays only in the present research on the physical properties was expounded, is still a lack of its social attribute level interpretation of features, and therefore also need further exploration.This article first from the beginning of the pedestrian simulation research situation at home and abroad, microscopic simulation model for pedestrians and the pedestrian simulation platform are reviewed, and the characteristics of pedestrian activity extraction method and classification are introduced, and the original social force model is calibration;Then the pedestrian attribute data of different gender and age of the pedestrian for classification statistics and quantitative and the corresponding differentiation treatment was conducted on the maneuverable attribute of the monomers pedestrians model, to enhance the ability of model description of pedestrian differentiated attribute. For the part of companion group model introduced differentiated members of the combination of morphology, enhanced the scope of application of the model and authenticity, and corresponding to explore the effects of heterogeneous mechanism of group dynamics. In addition add the packet communication mechanism for pedestrians peer group model, emersion on the level of its social attribute for the packet communication behavior and corresponding analyses companion group of pedestrians in the process of marching self-organization form change behavior on its dynamic mechanism; Finally, this article based on the above research content integration, set up a differentiated pedestrian simulation platform, and designed a variety of simulation scenario, motion simulation for the different component types and properties of the pedestrian flow and statistical analysis of experimental results, obtained the differentiation properties of pedestrian flow that impact on its overall performance, and further analyzes the self-organization to pedestrian flow movement rules to establish the impact of the mechanism.