SUBCONSCIOUS EFFECT ON PEDESTRIAN COUNTER FLOW IN A MODIFIED LATTICE GAS MODEL WITH THE VARIABLE TRANSITION PROBABILITY

Hua Kuang (), Song Tao (), Shiqiang Dai () and Xingli Li ()
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Hua Kuang: Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;
Song Tao: Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
Shiqiang Dai: Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
Xingli Li: School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China

International Journal of Modern Physics C (IJMPC), 2009, vol. 20, issue 12, 1945-1961

Abstract: Pedestrian behavioral modeling is an important topic to reproduce rich pedestrian dynamics phenomena. In this paper, a modified lattice gas model is proposed to simulate pedestrian counter flow under periodic boundary conditions by considering the variable transition probability, which can quantitatively describe complex human subconscious behaviors and distinguish the individual and common characteristics of pedestrians. Four types of walkers are involved in the model, and their dynamical characteristics are discussed in some complex situations. The simulation results show that the presented model can reproduce some essential features of pedestrian counter flows, such as the lane formation, segregation effect and phase separation. For the mixed pedestrian flows, the comparison between the subconscious behaviors of obeying the traffic rules and those of breaking the traffic rules indicates that the former could effectively reduce the occurrence of jam cluster. In addition, it is found that with increase of the strength of driftD1, the jam transition threshold decreases. Finally, the simulation results are compared with our previous study (see Ref. 32). It is shown that the mean velocity and the mean flow are always larger at the free moving phase, and the underlying mechanism is discussed in detail.

Keywords: Pedestrian flow; lattice gas model; counter flow; subconscious behavior; 45.70.Vn; 89.40.-a; 05.50.+q; 05.70.Fh (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (2)

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DOI: 10.1142/S0129183109014849

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