Z. J. Fu, L. Z. Yang, Y. Q. Chen, K. J. Zhu and S. Zhu (2013) The effect of individual tendency on crowd evacuation efficiency under inhomogeneous exit attraction using a static field modified FFCA model. Journal/Physica a-Statistical Mechanics And Its Applications 392 6090-6099. [In English]
Web link: http://dx.doi.org/10.1016/j.physa.2013.07.062
Keywords: Static field, Individual tendency, Attraction non-uniformity, Crowd, evacuation efficiency, CELLULAR-AUTOMATON MODEL, PEDESTRIAN DYNAMICS, OCCUPANT EVACUATION, SIMULATION, FLOW, VISIBILITY
Abstract: As an extension of the Asymmetric Simple Exclusion Process, the floor field cellular automata model has its specific advantages in reproducing crowd self-organized phenomena, embodying individual characteristics and reducing the computing complexity by translating the long-ranged interaction to local interaction. Evacuation from a room is an important part in the study of building evacuation. In our experiment and real life observation we found the exit attraction non-uniformity. To obtain the effect of individual tendency to the exit attraction center on the crowd evacuation efficiency, the static field is modified. Compared with the control group, the exit attraction non-uniformity has a disadvantage in the crowd evacuation efficiency. The position deviation between the exit geometric center and the exit attraction center delays the crowd evacuation by generating a local merging flow. In addition, the individual tendency also increases the crowd evacuation time by increasing the static field gradient to the attraction center, leading to a low usage efficiency of exits. Compared with the influence of other factors, the inhomogeneous exit attraction has an obvious effect on the crowd evacuation efficiency. (C) 2013 Elsevier B.V. All rights reserved.