Research on Application of Intelligent Indication Signs in Improving Efficiency of Crowd Evacuation

doi:10.16182/j.issn1004731x.joss.23-0631

Abstract

Abstract:

Aiming at the low emergency evacuation efficiency of dense crowds in confined spaces, a crowd evacuation guidance model based on intelligent signs is constructed in this paper. A balanced congestion strategy to optimize the signs layout and a social network search-based sign guidance weights optimization method are proposed to improve evacuation efficiency. Simulation experiments show that the optimized intelligent sign layout can effectively alleviate the local congestion during evacuation and reduce the time consumption of pedestrians caused by congestion. The optimized intelligent sign guidance weights can further balance the utilization rate of exits, which is conducive to making full use of the environmental resources to enhance the efficiency of crowd evacuation further.

Key words: intelligent indication signs, evacuation guidance, reciprocal velocity obstacles, social network search

CLC Number:

TP391.9

Niu Heng, Han Yanbin, Li Liang, Chen Weilin, Niu Sijie, Hou Qingtao. Research on Application of Intelligent Indication Signs in Improving Efficiency of Crowd Evacuation[J]. Journal of System Simulation, 2024, 36(10): 2383-2395.

Figures/Tables 16

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Table 1

Simulation experiment parameters

参数	数值
行人速度ν/(m/s)	3
拥塞衡量度 $β$	0.5
行人有限理性强度 $σ$	0
权重上限 $B U$	1.8
权重下限 $B L$	0.3
种群数量m	10
最大迭代轮数k	100
行人直径P/m	0.48

Table 1

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Table 2

SNS results for different numbers of people

疏散人数	权重	疏散时间/s
500	$x 0 = 1.6, x 1 = 0.9, x 2 = 1.2, x 3 = 1.2, x 4 = 1.7, x 5 = 1.3, x 6 = 1.3, x 7 = 0.7, x 8 = 0.8, x 9 = 1.7$	287
1 000	$x 0 = 0.4, x 1 = 1.7, x 2 = 1.0, x 3 = 1.2, x 4 = 1.3, x 5 = 1.8, x 6 = 0.2, x 7 = 0.6, x 8 = 1.8, x 9 = 0.8$	417
2 000	$x 0 = 0.7, x 1 = 1.8, x 2 = 0.3, x 3 = 1.3, x 4 = 1.8, x 5 = 1.8, x 6 = 1.3, x 7 = 0.2, x 8 = 0.4, x 9 = 0.8$	813
3 000	$x 0 = 0.7, x 1 = 1.7, x 2 = 1.8, x 3 = 1.8, x 4 = 1.7, x 5 = 1.8, x 6 = 1.0, x 7 = 1.6, x 8 = 1.8, x 9 = 1.4$	1 264

Table 2

Fig. 11

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