Pedestrian flow through exit: Study focused on evacuation pattern

被引:0
作者
Zhang, Bo-Si [1 ]
Yu, Zhi-Hong [1 ]
Sun, Bo-Lin [1 ]
Guo, Zi-Yu [1 ]
Chen, Mo [1 ]
机构
[1] China Univ Lab Relat, Sch Safety Engn, Beijing 100048, Peoples R China
关键词
evacuation; exit width; flow rate; queued evacuation pattern; random evacuation pattern; 89.40.-a; 28.52.Nh; 07.05.Fb; 88.40.M-; SELECTION; FEATURES; BEHAVIOR; OBSTACLE; INFLOW; MODEL; ROOM;
D O I
10.1088/1674-1056/acf494
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Experiments are conducted on the evacuation rate of pedestrians through exits with queued evacuation pattern and random evacuation pattern. The experimental results show that the flow rate of pedestrians is larger with the random evacuation pattern than with the queued evacuation pattern. Therefore, the exit width calculated based on the minimum evacuation clear width for every 100 persons, which is on the assumption that the pedestrians pass through the exit in one queue or several queues, is conservative. The number of people crossing the exit simultaneously is greater in the random evacuation experiments than in the queued evacuation experiments, and the time interval between the front row and rear row of people is shortened in large-exit conditions when pedestrians evacuate randomly. The difference between the flow rate with a queued evacuation pattern and the flow rate with a random evacuation pattern is related to the surplus width of the exit, which is greater than the total width of all accommodated people streams. Two dimensionless quantities are defined to explore this relationship. It is found that the difference in flow rate between the two evacuation patterns is stable at a low level when the surplus width of the exit is no more than 45% of the width of a single pedestrian stream. There is a great difference between the flow rate with the queued evacuation pattern and the flow rate with the random evacuation pattern in a scenario with a larger surplus width of the exit. Meanwhile, the pedestrians crowd extraordinarily at the exit in these conditions as well, since the number of pedestrians who want to evacuate through exit simultaneously greatly exceeds the accommodated level. Therefore, the surplus width of exit should be limited especially in the narrow exit condition, and the relationship between the two dimensionless quantities mentioned above could provide the basis to some extent.
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页数:10
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共 43 条
  • [1] Adrian J., 2018, P 9 INT C PEDESTRIAN, P77
  • [2] Experimental and modeling study on evacuation under good and limited visibility in a supermarket
    Cao, Shuchao
    Fu, Libi
    Wang, Peng
    Zeng, Guang
    Song, Weiguo
    [J]. FIRE SAFETY JOURNAL, 2018, 102 : 27 - 36
  • [3] Exit selection and pedestrian movement in a room with two exits under fire emergency
    Cao, Shuchao
    Fu, Libi
    Song, Weiguo
    [J]. APPLIED MATHEMATICS AND COMPUTATION, 2018, 332 : 136 - 147
  • [4] Pedestrian evacuation simulation in the presence of an obstacle using self-propelled spherocylinders
    Echeverria-Huarte, I
    Zuriguel, I
    Hidalgo, R. C.
    [J]. PHYSICAL REVIEW E, 2020, 102 (01)
  • [5] Using virtual reality to study pedestrian exit choice behaviour during evacuations
    Feng, Yan
    Duives, Dorine C.
    Hoogendoorn, Serge P.
    [J]. SAFETY SCIENCE, 2021, 137
  • [6] A fuzzy-theory-based behavioral model for studying pedestrian evacuation from a single-exit room
    Fu, Libi
    Song, Weiguo
    Lo, Siuming
    [J]. PHYSICS LETTERS A, 2016, 380 (34) : 2619 - 2627
  • [7] Redefining the role of obstacles in pedestrian evacuation
    Garcimartin, A.
    Maza, D.
    Pastor, J. M.
    Parisi, D. R.
    Martin-Gomez, C.
    Zuriguel, I
    [J]. NEW JOURNAL OF PHYSICS, 2018, 20
  • [8] Flow and clogging of a sheep herd passing through a bottleneck
    Garcimartin, A.
    Pastor, J. M.
    Ferrer, L. M.
    Ramos, J. J.
    Martin-Gomez, C.
    Zuriguel, I.
    [J]. PHYSICAL REVIEW E, 2015, 91 (02):
  • [9] Experimental evidence of the "Faster Is Slower" effect
    Garcimartin, A.
    Zuriguel, I.
    Pastor, J. M.
    Martin-Gomez, C.
    Parisi, D. R.
    [J]. CONFERENCE ON PEDESTRIAN AND EVACUATION DYNAMICS 2014 (PED 2014), 2014, 2 : 760 - 767
  • [10] Logit-based exit choice model of evacuation in rooms with internal obstacles and multiple exits
    Guo Ren-Yong
    Huang Hai-Jun
    [J]. CHINESE PHYSICS B, 2010, 19 (03)