• Fire Science and Engineering
• /
• v.30 no.5
• /
• pp.36-45
• /
• 2016

Integral fire shutters are installed indiscriminately, regardless of evacuation. There is always the risk of an accident because integral shutters are applied mainly to corridors, passages, and stairs of schools This study evaluated the problem of integral shutter's entrance, evacuation, construction management, and maintenance control through a fire shutter accident case, including present condition of fire shutter installed at school of Okgil, Bucheon and Dongtan, Hwaseong. The results suggest that emergency lighting or signs for passage be set up to check location of entrance easily and install obstruction sensors at fire shutter to reduce life damage. In addition, the number of efficiency tests of fire shutters should be increased by running a trial test monthly or weekly to maintain the performance of fire shutter. Schools need to install a fire shutter- applied sprinkler at the entire floor.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.20 no.10
• /
• pp.1-9
• /
• 2006

The emergency lighting plan for underground space should be done with consideration of characteristics of the space. In terms of utilizing the Depthmap program from the Space Syntax theory, it is possible to analyze space quantitatively. Integration and intelligibility are major induces of this theory and we can use them as emergency lighting design parameters. For this study, human behaviors and survivor's evacuation routes in fire emergencies are analyzed through literature review. Based on those results, this study suggests the methodology of emergency lighting plan in underground space.

• Journal of the Korean Society of Hazard Mitigation
• /
• v.9 no.1
• /
• pp.81-89
• /
• 2009

Until now, Korea carried out disaster management under the perception that the central government or the local government bodies are totally responsible. However as the size of disasters become larger, the capacity of the public disaster management did not live up to the expectations. To analyze this issue, this research conducted interviews on disaster response readiness by "individual resident-residents cooperation-public/private collaboration" according to each preparedness-response-recovery stage, as resident representatives (Head of Ri, Head of Tong) as subjects. Based on the interviews, surveys were conducted to deduct the necessary factors needed for the general residents to exhibit disaster prevention capabilities. The surveys consist of 6 factors-risk perception, evacuation inductively, individual evacuation response, disaster prevention system, lookout & precaution, information communication.

• Journal of Satellite, Information and Communications
• /
• v.10 no.4
• /
• pp.28-31
• /
• 2015

The elevator is extreme important due to the large size of the building and public facilities. In particular, it occurs bottleneck phenomenon in a elevator in case of using a theater. So, in this paper, we suggests technology of removing the traffics of visitors' movement and increase the efficiency of the use of elevator. Configuration of the proposed technique is divided parts of the processing unit, the movement route of the mobile cover to help viewers to create a route to collect sensor and the sensed data to detect state and a waiting elevator. This was the design and verification of technical performance and implementation.

• Journal of the Society of Disaster Information
• /
• v.13 no.4
• /
• pp.422-441
• /
• 2017

Notifying emergency evacuation methods, accurate disaster location and evacuation route guidance can be very active alternatives to quickly minimize evacuation and casualties in disaster situation in the development of subway disaster prevention detection system that detects the disaster signs at the subway station early on the basis of Internet of things and leads passengers to evacuate. It's not easy to ensure perfect functioning of fire fighting facilities and equipments due to underground space structure with narrow exits. Therefore, we developed disaster provision EL Display integrated board that can induce the most efficient evacuation and the field experiment was conducted to examine the practical application in this study. Especially the applicability was verified by field application test because there is no case in which EL panels are used to evacuate disasters.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
• /
• 2008.11a
• /
• pp.157-164
• /
• 2008

The optical characteristcs and visibility of emergence esit signs made with phosphorescent materials have been studied and compared with conventional signs. The phosphorescence of the materials meets standards as defineds by JIS, and achieved a level of brightness recognizable by the human eye. The visibility in the dard of the signs using the phosphorescent materials was shown to be higher than that of currently employed materials. It was confirmed that phosphorescent materials show excellent promise to improve the visibility of emergency exit signs.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
• /
• 2009.05a
• /
• pp.83-86
• /
• 2009

음 배리어 프리(acoustic barrier-free)는 '음과 관련하여 장애인과 고령자의 생활에 불편을 주는 장벽을 제거하는 방안'이라고 정의 된다. 음 배리어프리는 건축, 도시 공간 및 교통 수단에서의 시각 또는 청각약자를 위한 안내, 유도, 경보 및 피난 시설에 대한 설계와 관련된다. 또한 보청기 등의 청각지원기기, 전자기기 등의 신호음 및 안내음과 음성 전송 장치와 같은 제품 디자인에도 음 배리어프리 개념은 요구된다. 본고에는 일본사례를 중심으로 음 배리어프리의 현황을 소개하고자 한다.

• Proceedings of the Computational Structural Engineering Institute Conference
• /
• 2011.04a
• /
• pp.371-374
• /
• 2011

본 연구는 개방형 BIM 환경의 품질관리 기준 확보를 목적으로 건설 산업의 공통업무분야와 추가적인 세부업무분야에 대한 품질관리 체크리스트를 제안하고자 한다. 공통업무는 일반적인 목적으로 적용 가능한 설계기준, 시설기준, 시공기준으로 대상을 분류하고, 세부업무는 초고층 건축물의 개방형 BIM적용 및 활용 목적에 따라 피난동선 검토, 에너지 분석 검토 측면으로 대상을 분류하여 각 분야 별 체크리스트를 도출하였다. 도출된 체크리스트가 검증을 통해 실무에 적용되면 BIM 모델의 작성 기준 및 지침과 연계되어 요구되는 조건들을 충족시키는 모델링을 유도하며 BIM 모델의 품질향상의 결과를 가져다 줄 것이라 기대한다.

• Tunnel and Underground Space
• /
• v.25 no.6
• /
• pp.568-576
• /
• 2015

In this study, scenarios based on the leakage of highly compressed air and fire occurrence turned out to be high risks in an operation stage of CAES facility were constructed and estimated. By combining Bernoulli equation with momentum equation, an expression to calculate an impact force of a jet flow of compressed air was derived. An impact force was found to be proportional to the square of diameter of fracture and the pressure of compressed air. Four types of fire scenarios were composed to evaluate an effects that seasonal change and location of fire source have on the spread behavior of smoke. Smoke from the fire ignited in the vicinity of CAES opening descended more quickly below the limit line of breathing than one from the fire occurred 10 m away from CAES opening, which is expected to occur due to a propagation of wave front of smoke. It was shown that a rate of smoke spread of the winter fire is faster than one of the summer fire and smoke from the winter fire spreads farther than one of the summer fire, which are dependent on the direction of air flow into access opening. Evacuation simulation indicated that the required safe evacuation time(RSET) of the summer and winter fires are 262, 670 s each.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.24 no.7
• /
• pp.870-874
• /
• 2018

In the worst maritime accidents, people should abandon ship, but ship structures are narrow and complex and operation takes place on rough seas, so escape is not easy. In particular, passengers on cruise ships are untrained and varied, making evacuation prospects worse. In such a case, the evacuation management of the crew plays a very important role. If a rescuer enters a ship at distress and conducts rescue activities, which zones represent the most effective entry should be examined. Generally, crew and rescuers take the shortest route, but if an accident occurs along the shortest route, it is necessary to select the second-best alternative. To solve this situation, this study aims to calculate evacuation routes using Q-Learning of Reinforcement Learning, which is a machine learning technique. Reinforcement learning is one of the most important functions of artificial intelligence and is currently used in many fields. Most evacuation analysis programs developed so far use the shortest path search method. For this reason, this study explored optimal paths using reinforcement learning. In the future, machine learning techniques will be applicable to various marine-related industries for such purposes as the selection of optimal routes for autonomous vessels and risk avoidance.