• Title/Summary/Keyword: 보행자 병목현상

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Fire Evacuation Simulation Using FFM and FDS (FFM과 FDS를 이용한 화재 대피 시뮬레이션)

  • LEE, Jae-Young;LEE, Min-Hyuck;JUN, Chul-Min
    • Journal of the Korean Association of Geographic Information Studies
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    • v.21 no.2
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    • pp.56-67
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    • 2018
  • In general, fire and evacuation simulators are used independently to diagnose the safety of building. Because this method does not reflect the movement of pedestrians considering fire spread, it is difficult to expect diagnosis of safety with high accuracy. In this study, we propose the simulation method that can describe the movement of pedestrians in the fire emergency. Our method reflects the FDS fire spread data into FFM and explains the situation in which a pedestrian recognize a fire and escapes to a safe route. This study consists of data linkage between FDS and FFM and development of improved FFM. Experiment of the proposed method is progressed using the EgresSIM. Simulation result shows that the number of evacuees on each exit is affected by the presence or absence of fire and it was confirmed that the evacuation time increase and the bottleneck phenomenon deepened by exit.

The Effect of Amplitude, Event, and Duration of Electrical Stimulation on the Evacuation Velocity of Rodents: An Evacuation Experiment (설치류 대피 실험에서의 전기 자극의 크기, 횟수, 지속시간의 대피 속도에 대한 영향)

  • Kim, Somi;Nguyen, Duyen Thi Hai;Park, Junyoung
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.20 no.3
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    • pp.8-15
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    • 2021
  • Despite advances in technology, crushing accidents still occur during emergency evacuations of crowded public spaces. To prevent crushing accidents, it is necessary to understand the flow of pedestrians during evacuation scenarios through experiments. Since experiments with humans can generate real accidents, we performed experiments on rodents to approximate human behavior. To trigger an emergency evacuation response, we applied electrical stimulation to the feet of the rodents. Although electrical stimulation has been applied to mice in many experiments, studies on the intensity and pattern of electric stimulation required to evoke a rapid evacuation response in mice is still lacking. In this study, we experimentally investigated how the evacuation flow of mice changes according to the amplitude, event, and duration of electric stimulation.