INFLUENCE OF INFORMATION ON CROWD DISPERSION PROCESS

H. Tian, Y. Xue () and Y.-F. Wei ()
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H. Tian: Institute of Physical Science and Engineering, Guangxi University, Nanning 530004, China
Y. Xue: Institute of Physical Science and Engineering, Guangxi University, Nanning 530004, China;
Y.-F. Wei: Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;

International Journal of Modern Physics C (IJMPC), 2009, vol. 20, issue 07, 1001-1010

Abstract: The influence of information on the pedestrian in crowd dispersion process is investigated under the open boundary condition on the square lattice by the use of the lattice gas model of biased random walkers without the back step. It is found that the jamming phenomenon occurs when the total entrance density is small in spite of influence of information. The mean velocity〈v〉pedof the walkers moving remains a constant via a small fluctuation for the small total entrance density, but for the large total entrance density, the〈v〉pedincreases from 0 to 1. The mean velocity〈v〉infof information spreading increases from 0 to 1, and then decreases to 0. The critical density decreases with increasing the sizeWof the system. When the size of the system is small, the platform appears because of asymmetry in propagation of information.

Keywords: Lattice gas model; information; pedestrian; evacuation dynamics; 11.25.Hf; 123.1K (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S012918310901414X

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