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Simulation of pedestrian evacuation from a room with multi-exit and asymmetrical pedestrian layout is presented based on an improved dynamic parameter model in this paper. The computation and the count-area of imaginary distance are improved based on the Max-Min evacuation path selection of actual and imaginary distance in order to reduce evacuation imbalance caused by the asymmetry of pedestrian layout. An imbalance coefficient is introduced to describe the asymmetry of pedestrian layout. The effects of pedestrian layout asymmetry on the evacuation time are analyzed respectively from fixed and unfixed pedestrian initialization site. The simulation results of the improved and original models are compared and analyzed, and the improved model can effectively reduce evacuation imbalance. Simulation results show that under normal evacuation condition with considerring reasonable pedestrian and jam around exits, evacuation time is hardly affected by pedestrian and exit layout and depends mainly on cognition coefficient, total width of exits and pedestrian initialization amount.
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Keywords:
- cellular automata /
- pedestrian evacuation /
- dynamic parameters /
- pedestrian layout
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[32] [33] Yang L X, Zhao X M, Gao Z Y, Zheng J F 2011 Acta Phys. Sin.60 100501 (in Chinese) [杨凌霄，赵小梅，高自友，郑建风 2011 60 100501]
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[36] Zhou J W, Kuang H, Liu M R, Kong L J 2009 Acta Phys. Sin. 58 3001 (in Chinese) [周金旺，邝华，刘慕仁，孔令江 2009 58 3001]
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[40] [41] Varas A, Cornejo M D, Mainemer D, Toledo B, Rogan J, Muoz V, Valdivia J A 2007 Physica A 382 631
[42] [43] Liu S, Yang L, Fang T, Li J 2009 Physica A 388 1921
[44] Yuan W, Tan K 2007 Physica A 384 549
[45] -
[1] Helbing D, Farkas I, Vicsek T 2000 Nature 407 487
[2] [3] YuWJ, Chen R, Dong L Y, Dai S Q 2005 Phys. Rev. E 72 026112
[4] [5] Burstedde C, Klauck K, Schadschneider A, Zittartzet J 2001 Physica A 295 507
[6] [7] Henein C M, White T 2007 Physica A 373 694
[8] [9] Huang H J, Guo R Y 2008 Phys. Rev. E 78 021131
[10] [11] Wen J, Tian H H, Xue Y 2010 Acta Phys. Sin. 59 3817 (in Chinese)[温坚，田欢欢，薛郁 2010 59 3817]
[12] Yamamoto K, Kokubo S, Nishinari K 2007 Physica A 379 654
[13] [14] Ma J, Song W G, Liao G X 2010 Chin. Phys. B 19 128901
[15] [16] [17] Yue H, Hao H R, Chen X M, Shao C F 2007 Physica A 384 567
[18] [19] Yue H, Shao C F, Chen X M, Hao H R 2008 Acta Phys. Sin. 57 6901 (in Chinese) [岳昊，邵春福，陈晓明，郝合瑞 2008 57 6901]
[20] [21] Yue H, Guan H G, Zhang J, Shao C 2010 Physica A 389 527
[22] [23] Yue H, Shao C F, Yao Z S 2009 Acta Phys. Sin. 58 4523 (in Chinese) [岳昊，邵春福，姚智胜 2009 58 4523]
[24] [25] Yue H, Shao C F, Guan H G, Duan L M 2010 Acta Phys. Sin. 59 4499 (in Chinese) [岳昊，邵春福，关宏志，段龙梅 2010 59 4499]
[26] [27] Yue H, Guan H G, Shao C F, Zhang X 2011 Physica A 390 198
[28] [29] Kuang H, Li X L, Wei Y F, Song T, Dai S Q 2010 Chin. Phys. B 19 070517
[30] [31] Zeng G X, Xue Y 2011 Acta Phys. Sin. 60 014502 (in Chinese)[曾广汀，薛郁 2011 60 014502]
[32] [33] Yang L X, Zhao X M, Gao Z Y, Zheng J F 2011 Acta Phys. Sin.60 100501 (in Chinese) [杨凌霄，赵小梅，高自友，郑建风 2011 60 100501]
[34] [35] Zhou JW, Chen X L, Zhou J H, Tan H L, Kong L J, Liu M R 2009 Acta Phys. Sin. 58 2281 (in Chinese) [周金旺，陈秀丽，周建槐，谭惠丽，孔令江，刘慕仁 2009 58 2281]
[36] Zhou J W, Kuang H, Liu M R, Kong L J 2009 Acta Phys. Sin. 58 3001 (in Chinese) [周金旺，邝华，刘慕仁，孔令江 2009 58 3001]
[37] [38] [39] Zhao D L, Yang L Z, Li J 2006 Physica A 363 501
[40] [41] Varas A, Cornejo M D, Mainemer D, Toledo B, Rogan J, Muoz V, Valdivia J A 2007 Physica A 382 631
[42] [43] Liu S, Yang L, Fang T, Li J 2009 Physica A 388 1921
[44] Yuan W, Tan K 2007 Physica A 384 549
[45]
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