• 수산해양교육연구
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• 제28권5호
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• pp.1358-1364
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• 2016

Maritime accidents caused by a ship include collisions, sinking, stranding and fire etc. This study is intending to consider fire accidents among such diverse marine accidents. It is much likely that various sorts of fires break out because crewmen are living in a narrow space for long periods of time consequent on the ship's characteristic of sailing on the sea. According to the ship fire survey, about 50% of the total fire accidents occurred at an engine room, and the main fire origin was analyzed to be oil. In addition, ship fire breaks out in the order of baggage racks and living quarter. In short, the survey indicates that all sorts of fires belonging to A, B, C and D-class have occurred. This study, targeting an actual passenger ship 'A', found the response time to evacuation, during which the people on board a ship recognize the outbreak of fire, and act, and the travel time for evacuation which is the actual travel time. In addition, this study carried out a simulation through the special program for fire analysis - FDS (Fire Dynamics Simulator) in order to find the effective evacuation time, i.e. life survival time. Particularly, this study did comparative analysis of the influence on the survival of passengers and crew based on the collected simulation data by fire size and sort. As a result of the analysis, it was found that when examining the only actual evacuation movement time excepting the response time to evacuation, people are safe by completing evacuation before the effective evacuation time only in case fire size is 100Kw among all sorts of fires. In other words, in case of the outbreak of fire more than 1 MW, it was found to fail to meet evacuation safety regardless of fire size.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.475-480
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• 2010

The safety step has been developed to ensure the passengers' safety including the disabled and the weak by eliminating gap between vehicle and platform. The type of safety step is divided according to the position that the safety step is installed. The type of safety step attached platform is the rubber type that is previously attached to a platform. The installed rubber can reduces the gap between vehicle and platform by a fixed distance. If the safety step is installed on the vehicle, it is possible to respond to the various platform typed such as straight or curved form. It is also flexible to the height of riding depends on number of passenger and platform conditions and does not require crew's additional operation. We have been developed vehicle attached safety step for advanced electric multiple unit. We hope to increase the use of safety step for the disabled and the weak to expand the convenience use of railway transportation system.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 춘계학술대회
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• pp.53-61
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• 2003

The process of railway traffic planning is composed of several steps such as long - term, mid - term, short - term, and real - time plan. The planning of vehicle and manpower resources is a main research topic in tactical short - term planning step Railway vehicle is usually consisted of a power car, passenger/freight cars and human resource is composed of engine driver, cabin crew, ground personnel. So far , power car was main research target in railway vehicle scheduling problem. Recently according as the light electric railway or high - speed railway is introduced, the operational planning of train set vehicles become important . In this paper , we introduce the conceptional model for trainset restoring problem and developed heuristic algorithm.

• 해양환경안전학회지
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• 제27권7호
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• pp.1044-1050
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• 2021

우리나라는 여러 건의 여객선 사고를 겪으면서, 여객선 안전관리를 위해 다양한 제도를 운영하고 있다. 2021년 기준 우리나라 연안을 운항하는 여객선 162척 중, 차량갑판이 개방된 형태의 차도선이 105척(65 %)을 차지하고 있다. 차도선은 2~4개의 섬을 경유하는 운항 패턴을 가지고 있다. 출항지(모항)에서 안전점검은 선원과 운항관리실의 운항감독관, 해사안전감독관에 의해 실시된다. 경유지에서의 안전점검은 자체점검이 실시되는 경우가 있다. 여느 제도와 마찬가지로 제도적, 현실적 한계 등이 있다. 이를 위해 영상처리기법을 활용하여 차량을 검출하고 이를 선박 복원성 계산과 연동하는 방안을 제안하고자 본 연구를 수행하였다. 차량 검출을 위해 차영상을 이용하는 방법과 기계학습을 이용하는 방법을 사용하였다. 검출된 데이터를 선박 복원성 계산에 활용하였다. 기계학습을 통해 차량을 검출하는 경우, 차영상에 의한 차량 검출 방법보다 차량 식별에 안정적임을 알 수 있었다. 다만, 카메라가 일몰과 같은 상황에서 역광을 받는 경우와 야간과 같은 상황에서 부두와 선박 내부의 강한 조명에 의해 차량이 식별되지 않는 한계가 있었다. 안정적인 영상처리를 위해 충분한 영상 데이터 확보와 프로그램 고도화가 필요해 보인다.

• Journal of Advanced Marine Engineering and Technology
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• 제38권9호
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• pp.1156-1162
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• 2014

294명이 사망하고 10명이 실종된 세월호 사고와 같은 해상사고의 재발을 방지하기 위하여, 본 연구에서는 세월호 사고 전후 국내 여객선 승객의 안전의식 변화를 비교, 분석하였다. 설문조사는 제주연안여객터미널에서 2014년 2월과 5월에 두차례 수행되었고 설문에 대한 각 유효응답인원은 394명, 401명이었다. 세월호 사고 이후 승무원이 알려주는 경로를 따르겠다는 응답은 24.8% 낮아졌고, 승무원의 유도에 따라 피난을 가겠다는 응답도 18.5% 감소하는 등 전반적으로 승무원에 대한 신뢰가 낮아졌다. 또한 세월호 사고 이후 여객선 일반 승객의 77.6%는 세월호 사고와 같은 재난을 당할 수 있다는 불안감을 느끼지만, 약 60% 응답자는 승선 중 진행된 안전교육을 받지 않았고, 45%는 구명조끼 착용법을 모르며, 약 50%정도는 비상대피로를 확인하지 않으고, 60%는 구명벌, 구명보트의 위치를 파악하지 않는 모순을 보였다. 한편, 86.9%의 응답자가 현재 주로 동영상으로만 진행되는 안전교육 방법의 개선이 필요하다고 응답했다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.326-330
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• 2005

Crahworthy design of trains is now indispensable procedure in modern railway vehicle design for ensuring the safety of passengers and crew. It is now widely recognized that a more strategic approach is needed in order to absorb higher level energy in a controlled manner and minimize passenger injuries effectively. The first design step in this strategic approach is the design of the front end structure(so called HE extremities) to absorb a large part of total impact energy and then the structure of passengers non-accommodation zones(so called HE extremities) is designed to absorb the rest of impact energy. In this paper, the passengers entrance door area is selected as the LE(low energy) extremities and the design of the LEE was carried out. The main part of LEE design procedures is the design of energy absorbing tubes. For this purpose, the several tube candidates are introduced and compared to each others with numerical crash simulation.

• 대한인간공학회지
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• 제21권2호
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• pp.87-100
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• 2002

Ergonomic ship design aims to improve the safety and convenience of crew and passenger. Recently, ergonomic design is a key issue in the warship design, as a basis of analysing and evaluating ergonomic design and evaluation methods for warship, existing military design guidelines and navy criteria in the fields of ergonomics were surveyed. Also, the methodology including ergonomic human model was introduced. Finally, it is shown that the ergonomics evaluation of a design at the early stage of warship design can be performed using commercial ergonomics evaluation model such as Delmia's ERGO.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.652-656
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• 2004

Crashworthy design of trains is now indispensable procedure in modern railway vehicle design for ensuring the safety of Passengers and crew. It is now widely recognized that a more strategic approach is needed in order to absorb higher level energy in a controlled manner and minimize passenger injuries effectively. The first design step in this strategic approach is the design of the front end structure(so called HE extremities) to absorb a large part of total impact energy and then the structure of passengers non-accommodation zones(so called LE extremities) is designed to absorb the rest of impact energy. In this paper, the passengers entrance door area is selected as the LE(low energy) extremities and the design of the LEE was carried out. The main part of LEE design procedures is the design of energy absorbing tubes. For this purpose, the several tube candidates are introduced and compared to each others with numerical crash simulation.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.626-631
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• 2007

With its critical pending task of putting the management into the right track, it is extremely important for the Korea Railroad Corporation to incorporate more reasonable distribution into train consists to cut down its operation costs and attain higher income surplus in the Metropolitan Train Business. Furthermore, for Jung-ang Line soon to be operated without any crew on-board, more adequate train formation looks very indispensable mainly to satisfy transportation demands as well as enhance the passenger safety. This paper will examine the Jung-ang Line with hourly-basis congestions and inter station O/Ds to get the better operation schedules and trainset numbers.

• 대한기계학회논문집A
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• 제38권4호
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• pp.385-391
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• 2014

차륜형전투차량은 보병부대의 전투력 강화와 기동성 향상을 목적으로 운용하는 군용차량이다. 전투차량은 운용 특성상 험난한 지형의 주행이 불가피하고 높은 무게 중심으로 인해 전복 사고의 위험성이 크다. 이러한 이유로 전투차량의 내부는 전복 사고에 따른 승무원의 안전성을 고려하여 설계해야 할 필요가 있다. 하지만 실제 차량을 이용한 시험은 현실적으로 많은 어려움이 있다. 따라서 본 연구에서는 차륜형전투차량의 전복 시험을 모사하여 승무원의 안전성을 측정하기 위한 컴퓨터 시뮬레이션 및 모델링 방법에 관한 연구를 수행한다. 본 논문의 연구 범위는 전투차량 전복 시험 조건, 전투차량 유한요소 모델링, 유한요소 인체 더미의 적용 방법, 전복 시험 시뮬레이션, 시뮬레이션 적용 시 발생 가능한 문제와 해결 방안 제시, 인체 상해치 계산 및 평가를 포함한다.