• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.435-439
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• 2015

It is important for Singaporean companies to manage the multifaceted risks when forming international construction joint ventures (ICJVs) with developing countries. The objectives of this study are to assess the risks associated with Singaporean ICJVs with developing countries, and investigate the risk allocation preferences in these ICJVs. To fulfill these objectives, a literature review was carried out and a questionnaire survey was performed with 38 professionals. The survey results reported "political instability" as the most critical risk, and market level risks were less critical than country and project level risks. Additionally, the results showed agreement on the risk ranking between building and infrastructure ICJVs, despite significant differences in the criticalities of five risks. Furthermore, five risks were preferably allocated to host and foreign partners, respectively, while 13 risks could be shared among partners. As few studies have explored the risk allocation preferences in ICJVs, this study expands the literature. Also, the identification of the risks allows other companies to customize their own lists of critical risks, while the preferred risk allocation provides valuable information for companies from various countries that intend to form ICJVs with developing countries. Thus, this study contributes to the global body of knowledge relating to ICJVs.

• 대한건축학회논문집:계획계
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• 제35권6호
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• pp.3-12
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• 2019

Current risk assessment methods typically determine accident risks embedded in construction projects by combining severity and frequency; however, they do not reflect the characteristics of construction projects. To solve the problem, this study aims to develop a novel risk assessment method that combines severity, frequency, and disaster influence factors (i.e., weather conditions and worker's characteristics) for assessing risks of activities occurring on a construction site actually. In this study, a severity was estimated by death against victims, and a frequency was estimated by the victim rate. The frequency was then converted to probability taking disaster influence factors into account. Thus, instead of considering severity and frequency for assessing the original risks (RO), the proposed method uses severity and probability to yield adjusted risks (RA) for each activity. A case study was conducted to determine if the proposed method works as intended in a real setting. The results show that RA is more sensitive to disaster influence factors than RO and, therefore, is able to assess the actual risks reflecting the working environment and conditions of a construction site. This study contributes to risk management of construction projects by offering a risk assessment method that measures a possibility of potential disasters from the probabilistic perspective. This method would help project managers assess accident risks in a more systematic and quantitative manner.

• 한국건설관리학회논문집
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• 제14권5호
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• pp.92-102
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• 2013

PF사업은 민간의 투자를 유치하여 국가 경제와 산업의 발전에 도움을 주려는 목적으로 수행되는 프로젝트 발주방식의 한 형태이다. 그러나 국내의 경우 개발이익 극대화라는 측면만을 고려함으로 인하여 무분별한 PF사업의 급증과 최근의 금융위기의 여파로 인하여 사업의 중단이 속출하고 있다. 이러한 주된 원인은 PF사업을 객관적으로 정량화하고 이를 분석하여 사전에 발생 가능한 리스크를 차단하려는 노력이 미흡한 결과이다. 본 연구의 목적은 PF사업의 건전성을 평가할 수 있는 방법론을 제안하기 위한 사전 연구로 PF사업의 성공에 영향을 끼치는 원인을 분류하여 세부요소를 파악하고 이를 바탕으로 PF사업의 리스크를 평가할 수 있는 정량적인 체계를 제안하는데 있다. 본 연구는 PF사업의 성공요인과 실패요인을 선행연구와 면담조사를 바탕으로 5개영역, 15개 항목, 104개의 영향인자를 도출하였고, 전문가 설문조사를 통해 영향정도를 검증하였다. 후속 면담조사를 통해 설문조사 결과에 대한 분석을 실시하였고, PF 사업의 건전성 평가를 위한 도구로 활용이 될 경우 PF 개발사업의 건전성 평가에 많은 도움이 될 수 있을 것으로 판단되며, PF 사업에 대한 객관적인 평가 도구 개발 시 유용한 기초자료로 이용될 수 있을 것으로 기대된다.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.742-743
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• 2015

Korean construction industry has developed with national economy growth for a couple of decades. However, because of slump of real estate, the domestic construction industry was intimidated. In this situation, many construction company has no choice but to go abroad to find construction projects. However, almost small or medium-sized construction companies are very hard to operate their business because they have small funding ability and weak labor power. Therefore, this study aims to propose an assessment tool through analyzing risk factors of overseas construction projects for small or medium-sized companies by examining preceding research and interviewing industry experts. Weights of the risk factors are determined through the surveys of the industry practitioners. All of the data is configured into the assessment tool and this converts the quantitative information which leads to the optimal of strategies choice. This paper provides a quantitative measurement of possible performance and detailed assessment of each itemized risk factors. This assessment tool is qualified for industry experts so that it can safely be applied to the future projects. Ultimately, many small or medium sized construction companies will benefit from the tool proposed in this study to examine the potential of the overseas market expansion.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2006년도 제27회 추계학술대회논문집
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• pp.71-74
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• 2006

본 논문은 미국의 우주개발과 함께 고안되어 여러 산업에 걸쳐 적용된 바 있는 확률적 위험 분석(probabilistic Risk Assessment; PRA) 기법의 역사와 내용을 소개하고 현재 항공우주연구연이 개발하고 있는 소형위성발사체(KSLV-I)의 추진기관에 대하여 그 흐름대로 적용하여 실제 기술적 위험 관리와 신뢰도 분석에 적용 가능함을 확인하고 한다.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.107-110
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• 2011

The key role in safety management is to identify any possible hazard before it occurs by identifying any possible risk factors which are critical to risk assessment. This planning/assessment process is considered to be tedious and requires a lot of attention due to the following reasons: firstly, falsework (temporary structures) in construction projects is fundamentally important. However, the installation and dismantling of those facilities are one of the high risk activities in the job sites. Secondly, temporary facilities are generally not clearly delineated on the building drawings. It is our strong belief that safety tools have to be simple and convenient enough for the jobsite people to manage them easily and be flexible for any occasions to be occurred at various degrees. In order to develop the safety assessment system, this research utilizes the BIM technology and collects important information by importing data from BIM models and use it in the planning stage.

• 한국군사과학기술학회지
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• 제2권2호
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• pp.197-208
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• 1999

위험관리는 최근 다양한 분야의 산업에 적용 가능한 매우 중요한 토픽이다. 본 연구에서는 기본적인 위험관리의 일반적인 방법론과 새로운 위험관리 평가의 방법론을 제시한다. 위험관리의 실제 적용에 있어서 재정, 보험산업 등의 분야에서는 이미 많은 현실적 방법론들이 개발되었다. 다양한 산업현장에서 발전된 많은 적용사례들이 있으나 여전히 위험관리는 어려운 부분이며, 두 가지 주요한 위험평가 방법론이 시스템 엔지니어링 분야에서 개선되고 발전되어왔다. 그중 하나는 본래의 위험평가의 기본개념을 바탕으로 하여 발전한 것이며 다른 하나는 소프트웨어 엔지니어링분야의 위험평가에서 비롯된 것이다. 규모가 크고 복잡한 시스템에서 효과적인 위험관리는 프로젝트의 최종 목적을 달성하는데 있어서 불확실성에 적절히 대처하여 총 개발비용을 줄이고 목표일정과 성능을 달성하는 효과를 가져온다.

• 인터넷정보학회논문지
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• 제15권4호
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• pp.57-65
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• 2014

최근 한국의 대규모 IT 서비스 프로젝트의 수익률은 저하되고 있는 것으로 파악된다. IT 서비스 프로젝트의 수익률을 저하시키는 가장 큰 이유는 프로젝트와 관련된 여러 위험 요인들이 프로젝트의 일정 지연 및 비용 초과를 초래한 것으로 파악 된다. 이러한 일정 지연 및 비용 초과 현상을 방지하기 위해서는 프로젝트의 위험 요인들을 계약 체결 전에 식별하는 것이 매우 중요하다. 왜냐하면 발주사와 개발사간 계약 조건 협상 시 식별된 위험 요인들을 제거할 수 있기 때문이다. 본 연구에서는 IT 서비스 프로젝트의 특성으로 인해 프로젝트 수행 과정에서 발생할 수 있는 계약 위험 요인들을 사전에 파악하고 평가할 수 있는 체크리스트를 제시하고, 이를 실제 금융 산업의 IT 서비스 프로젝트에 적용하여 그 효과를 확인하고자 하였다. 적용 사례를 분석한 결과 IT 서비스 프로젝트의 위험 요인들을 식별하고 제거하는데 본 연구에서 제시된 체크리스트가 효과가 있음을 확인하였다.

• Nuclear Engineering and Technology
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• 제50권3호
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• pp.319-326
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• 2018

Since the Fukushima Daiichi nuclear disaster, concern and worry about multiunit accidents have been increasing. Korea has a higher urgency to evaluate its site risk because its number of nuclear power plants (NPPs) and population density are higher than those in other countries. Since the 1980s, technical documents have been published on multiunit probabilistic safety assessment (PSA), but the Fukushima accident accelerated research on multiunit PSA. It is therefore necessary to summarize the present situation and draw implications for further research. This article reviews journal and conference papers on multiunit or site risk evaluation published between 2011 and 2016. The contents of the reviewed literature are classified as research status, initiators, and methodologies representing dependencies, and the insights and conclusions are consolidated. As of 2017, the regulatory authority and nuclear power utility have launched a full-scale project to assess multiunit risk in Korea. This article provides comprehensive reference materials on the necessary enabling technology for subsequent studies of multiunit or site risk assessment.

• 대한산업공학회지
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• 제24권4호
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• pp.627-638
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• 1998

For any hazardous operation or risky project to be carried out safely and economically, it is of the utmost importance to formulate proper risk management policies based on the rational assessment of the risk levels of various potential hazards. In this paper, a Fuzzy Multi-Criteria Decision Making(FMCDM) method for risk assessment is proposed. The method evaluates, on the basis of fuzzy set theory, the risk level of a risky situation by aggregating the assessed levels of risk factors and their subjective weights. The method also allows some flexibility for the future users in the sense that, first, the relative importance weights for the three risk factors can be adjusted according to the nature of projects or systems and, second, the users have the choice between the two types of risk assessment results, that is, the assessed risk levels or the ranks of the risk situations. A numerical example for the proposed FMCDM method is provided to illustrate the computational procedure. To see how the suggested FMCDM method describes well people's perceived risk level, we compared the risk values derived from the suggested method with the subjective risk evaluations for ten risky situations.