• 한국주거학회논문집
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• 제19권5호
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• pp.103-110
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• 2008

The purpose of this study is to know how visual-field obstruction from fire smoke influences a resident's necessary time to reach fire escape and evacuation movement in a high-rise apartment housing. Generally, fire smoke not only gives visual-field obstruction and breath troubles to residents but interrupts their evacuation behavior. If a fire smoke layer is formed in the core department when evacuee enters at the evacuation staircase until, residents will be made to undergo a range of vision obstacle. In order to set a situation like that, participants wore eye bandage which had been made especially before the experiment. Also as a comparative standard, through no.1442 Japanese construction ministry notices about the building evacuation safety verification method, this study calculated smoke layer's dissent time and evacuation time. Then to compare with the former, the participants without an eye bandage joined a experiment once again. This study has understood how fire smoke effects on one's evacuation delay by analyzing residents' evacuation time to reach the staircase and movement route, however, in this study a toxic gas is not considered because it might threaten participants not to breathe.

• 대한안전경영과학회지
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• 제24권4호
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• pp.143-148
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• 2022

This paper attempted to analyze the correlation between the risk image of the evacuees in the tunnel and the variables that affect the evacuation behavior due to the closed feeling. As to whether there is a difference in the level of recognizing the tunnel risk image according to the distribution of jobs, the null hypothesis was rejected at the significance probability of 0.002, so it can be said that the level of recognition of the tunnel risk image varies depending on the job group. In the distribution difference between gender and tunnel risk image recognition level, the significance probability was 0.012, indicating that the null hypothesis was rejected, indicating that the tunnel risk recognition distribution according to gender was different. As a result of analyzing the distribution difference between the tunnel's closed feeling and the tunnel risk perception level, the significance probability was 0.001, and the null hypothesis was rejected, indicating that there was a difference in the tunnel risk image level.

• 한국화재소방학회논문지
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• 제25권5호
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• pp.100-107
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• 2011

본 연구에서는 비상시 인명피해의 위험요소인 연기발생에 따른 시야장애 상황을 연출하여 음성피난유도 시스템의 적용을 위한 모의실험을 실시하였으며 피험자들의 피난행동과 피난 대피시간을 조사 분석하였다. 피난유도음을 스피커 4개에서 동시에 발생시킬 경우, 대부분의 피험자는 방향감을 상실하고 지정된 지점으로 이동하는 시간도 비교적 길게 나타났다. 스피커 2개보다 1개에서 피난유도 멘트가 나왔을 때 방향감 및 피난행동에 가장 좋은 결과를 보여주었다. 또한 2개 이상의 스피커에서 피난유도 멘트가 동시에 발생되었을 때는 선행음효과를 활용하고, 스피커 설치가 가까울수록 피난유도 내용 및 방향감 인지가 높고 대피시간도 짧은 것으로 나타났다.

• 대한조선학회논문집
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• 제50권3호
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• pp.175-181
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• 2013

This paper presents a simulation for passenger ship evacuation considering the inclination of a ship. In order to describe a passenger's behavior in an evacuation situation, a passenger is modeled as a rigid body which translates in the horizontal plane and rotates along the vertical axis. The position and rotation angle of a passenger are calculated by solving the dynamic equations of motions at each time step. To calculate inclined angle of damaged ship, static equilibrium equations of damaged ship are derived using "added weight method". Using these equations, physical external forces due to the inclination of a ship act on the body of each passenger. The crowd behavior of the passenger is considered as the flock behavior, a form of collective behavior of a large number of interacting passengers with a common group objective. Passengers can also avoid an obstacle due to penalty forces acting on their body. With the passenger model and forces acting on its body, the test problems in International Maritime Organization, Maritime Safety Committee/Circulation 1238(IMO MSC/Circ.1238) are implemented and the effects of ship's inclination on the evacuation time are confirmed.

• 한국BIM학회 논문집
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• 제10권4호
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• pp.1-10
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• 2020

While the importance of barrier-free and fire evacuation design is highlighted in architectural design education, systemic analysis, and examination on such performances are still challenging due to methodological lacks. The present study investigates the effectiveness of BIM-based human behavior simulation for architecture major students' analytical examinations to promote barrier-free and fire evacuation performances. To achieve such an aim, quasi-experiments were conducted, which compare 50 students' analysis and examination scores according to the use and non-use of the simulation, and the data were collected via participants' survey and interview. As a result, T-Test and MANOVA analyses indicate that, compared with its non-use counterpart, the use of human behavior simulation better facilitates the students' (1) examination of the physical properties and dimensions for the disabled's accessibility and evacuation, (2) understanding of the bodily capacity and handicap of the disabled, (3) examination on the spatial layouts and locations of exits, (4) understanding on evacuees' urgent behaviors, and (5) responsibility as an architect. Based on previous studies, the reasons of statistical results are interpreted as the explicit observation and analytical measures of multiple numbers of virtual-evacuees and direct-experience from body range of the disabled responding to the populated occupants as what they face in authentic reality.

• 한국건설관리학회논문집
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• 제14권6호
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• pp.49-60
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• 2013

건축물에 있어 피난 계획은 프로젝트 전반에 걸쳐 고려되어야 할 매우 중요한 요소 중 하나이다. 기존 다양한 연구 및 실제 재난 사례등을 통해 피난의 중요성은 지속적으로 강조되어 왔으며, 사전 대비를 위한 다양한 노력들이 수행되어 왔다. 또한, 실제와 유사한 대응 훈련 준비의 어려움을 극복하고자 시뮬레이션을 통한 해결책 마련이 새로운 대안으로 떠올랐다. 그러나 피난 계획의 경우 시설물 뿐만 아니라 재실자의 특성 또한 신중히 고려되어야 한다. 현실과 가까운 피난 계획의 수립을 위해 본 연구에서는 인간 행태를 고려한 피난 과정을 분석한다. 기존 사회과학 이론에 기초하고 시스템 다이내믹스 모델링을 이용하여, 피난 초기부터 탈출까지 다양한 재실자 그룹의 특성으로 인해 발생하는 요인들을 포함하며, 이에 따른 의사결정, 행동의 변화 등의 분석한다. 이러한 모델을 통해 그룹 형성 및 재실자 간 상호 작용 등 긴급 상황에서 발생하는 인간 행태가 전체 피난 행태 및 결과에 미치는 영향을 파악하며, 향후 피난 시뮬레이터의 모듈로써의 활용 및 시설물 안전 관리자의 피난 계획 수립 시 의사결정의 기초자료를 제공할 것이라 예상된다.

• International Journal of Naval Architecture and Ocean Engineering
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• 제11권1호
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• pp.329-343
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• 2019

In order to simulate the evacuation simulation of a ship during a sinking, the slope angle change of the ship must be reflected during the simulation. In this study, the passenger evacuation simulation is implemented by continuously applying the heeling angle change during sinking. To reflect crowd behavior, the human density and the congestion algorithm were developed in this research and the walking speed experiment in the special situation occurring in the inclined ship was conducted. Evacuation simulation was carried out by applying the experimental results and the change of the walking speed according to the heeling angle of the ship. In order to verify the evacuation simulation, test items suggested by International Maritime Organization (IMO) and SAFEGUARD Validation Data Set conducted on a large Ro-PAX ferry (SGVDS 1) which performed real evacuation trial in full-scale ships were performed and the results of simulation were analyzed. Based on hypothetical scenario of when a normal evacuation command is delivered to the passengers of MV SEWOL in time, we predicted and analyzed the evacuation process and the number of casualties.

• Nuclear Engineering and Technology
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• 제53권3호
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• pp.825-832
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• 2021

A simulation-based approach is proposed to study the protective actions taken by residents during nuclear emergencies using cognitive findings. Human perception-based behaviors are not heavily incorporated in the evacuation study for nuclear emergencies despite their known importance. This study proposes a generic framework of perception-based behavior simulation, in accordance with the ecological concept of affordance theory and a formal representation of affordance-based finite state automata. Based on the generic framework, a simulation model is developed to allow an evacuee to perceive available actions and execute one of them according to Newton's laws of motion. The case of a shadow evacuation under nuclear emergency is utilized to demonstrate the applicability of the proposed framework. The illustrated planning algorithm enables residents to compute not only prior knowledge of the environmental map, but also the perception of dynamic surroundings, using widely observed heuristics. The simulation results show that the temporal and spatial dynamics of the evacuation behaviors can be analyzed based on individual perception of circumstances, while utilizing the findings in cognitive science under unavoidable data restriction of nuclear emergencies. The perception-based analysis of the proposed framework is expected to enhance nuclear safety technology by complementing macroscopic analyses for advanced protective measures.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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• pp.380-386
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• 2001

In considering the issue of safely during emergency building evacuations, it is important to be able to make accurate predictions about evacuation conditions and to be able to assess safety levels. Simulation techniques are often used to make predictions regarding evacuation conditions. The two main types of prediction models are crowd flow models and discrete models. We have developed an evacuation simulation system based on the discrete model which attempts to address the implementation problems of existing evacuation models. Our model incorporates characteristics such as evacuee profiles and spatial considerations, and is capable of dynamically predicting the behavior of individual evacuees. The simulation system is primarily designed for buildings in which many people are incapacitated and require helpers in order to evacuate, such as hospitals and facilities fur the elderly. We show the results that the evacuation simulation system was used to perform two trial simulations.

• 한국산학기술학회논문지
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• 제22권1호
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• pp.553-561
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• 2021

본 연구의 목적은 재난 취약계층 특히 장애아동을 전문으로 보육하는 어린이집의 피난 부하를 고려한 피난 모델 구축을 통해 장애아동의 피난 환경 개선 방안을 제시하는데 있다. 피난 부하 및 모델에 대한 이론적 고찰 및 장애아전문 어린이집 피난 훈련을 통해 장애아동의 피난 행태 및 방법을 분석하고, 이를 기초로 장애아전문 어린이집의 장애아동 피난 부하 모델을 제시하였다. 이상의 연구 결과 다음과 같은 결론을 도출하였다. 첫째, 장애아동의 피난은 장애 유형 및 수준, 피난 행태를 고려하여 피난 계획 수립의 필요성이 있으며, 피난시 피난 수단 및 방법의 특별한 고려의 필요성이 있다. 둘째, 재난시 장애아동의 피난 부하는 비장애인의 피난 부하와 상이한 조건을 보이며, 장애아동의 특별한 피난 행태(피난 방법 및 수단)를 반영하는 피난 통로 및 피난 부하 모델 구축의 필요성이 있다. 셋째, 휠체어 또는 뇌성마비 등 장애 유형 및 수준에 따라 수직 피난이 불가능한 경우, 장애아동의 안전한 피난을 위해서 2층 이상의 활동실에는 장애아동의 안전한 구난시까지 대기할 수 있는 피난안전구역을 설정할 필요성이 있다.