• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.245-252
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• 2022

Risk identification for bridge projects is a knowledge-based and labor-intensive task involving several procedures and stakeholders. Presently, risk information of bridge projects is unstructured and stored in different sources and formats, hindering knowledge sharing, reuse, and automation of the risk identification process. Consequently, there is a need to develop structured and formalized risk information for bridge projects to aid effective risk identification and automation of the risk management processes to ensure project success. This study proposes a semantic risk breakdown structure (SRBS) to support risk identification for bridge projects. SRBS is a searchable hierarchical risk breakdown structure (RBS) developed with python programming language based on a semantic modeling approach. The proposed SRBS for risk identification of bridge projects consists of a 4-level tree structure with 11 categories of risks and 116 potential risks associated with bridge projects. The contributions of this paper are threefold. Firstly, this study fills the gap in knowledge by presenting a formalized risk breakdown structure that could enhance the risk identification of bridge projects. Secondly, the proposed SRBS can assist in the creation of a risk database to support the automation of the risk identification process for bridge projects to reduce manual efforts. Lastly, the proposed SRBS can be used as a risk ontology that could aid the development of an artificial intelligence-based integrated risk management system for construction projects.

• 한국건설관리학회논문집
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• 제4권2호
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• pp.109-117
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• 2003

건설사업은 그 규모와 복잡성으로 인하여 다른 산업에 비해 위험에 대한 노출수위가 크고, 그 형태도 다양하다. 따라서, 건설사업에서 위험을 인지하고 대응하는 일련의 위험관리 과정은 정확하고 체계적으로 수행되어야 한다. 위험관리 과정에서 위험인지 단계는 다양한 위험요인의 인지와 그 위험의 성격을 규정하는 단계이고. 이러한 위험인지 단계에서 위험분류체계는 사업에 내재된 다양한 위험을 인지하게 해주는 유용한 도구이다. 본 연구에서는 기존 위험분류체계의 문제점을 개선하고 재정립함으로서, 실질적인 건설사업에서 위험인지 도구로서 활용될 수 있는 사업단계별, 계약주체별 체크리스트를 제안하였다.

• 한국안전학회지
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• 제29권3호
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• pp.79-84
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• 2014

Human error is one of the major contributors to the accidents. A lot of risk assessment techniques have been developed for prevention of accidents. Nevertheless, most of them were interested in physical factors, because quantitative evaluation of human errors was difficult quantitatively. According to lack of risk assessment techniques about human errors, most of industrial risk assessment for human errors were based on data of accident analysis. In order to develop an effective countermeasure to reduce the risk caused by human errors, a systematic analysis is needed. Generally, risk assessment system is composed of 5 step(classification of work activity, identification of hazards, risk estimation, evaluation and improvement). This study aimed to develop a risk identification technique for human errors that could mainly be applied to industrial fields. In this study, Ergo-HAZOP and Comprehensive Human Error Analysis Technique were used for developing the risk identification technique. In the proposed risk identification technique, Ergo-HAZOP was used for broad-brush risk identification. More critical risks were analysed by Comprehensive Human Error Analysis Technique. In order to verify applicability, the proposed risk identification technique was applied to the work of pile head cutting. As a consequence, extensive hazards were identified and fundamental countermeasures were established. It is expected that much attention would be paid to prevent accidents by human error in industrial fields since safety personnel can easily fint out hazards of human factors if utilizing the proposed risk identification technique.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.901-904
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• 2008

측량은 건설 공사 전반에 수행되고 있기 때문에 측량이 건설 공사에 미치는 영향은 매우 크다고 할 수 있다. 그러나 측량의 리스크 식별 및 관리에 관한 연구는 다른 분야에 비해 미비하다. 따라서 본 연구에서는 건설 공사의 시공 시 수행되는 측량에 관한 효율적인 리스크 관리를 목적으로 건설 공사 중 도로 공사에 수행되는 측량을 대상으로 리스크 관리에 관한 연구를 수행하였다. 일반적으로 리스크 관리는 리스크 식별, 분석, 대응의 3단계로 수행되지만, 본 연구에서는 리스크 식별 및 분석 단계에 초점을 맞추어 도로 공사의 측량 리스크 체크리스트 작성을 위한 연구를 수행하였다. 리스크 인자의 식별에는 도로 공사 시방서, 측량법, 도로 공사 체크리스트를 사용하였으며, 식별된 리스크를 바탕으로 도로 공사의 측량 관련 체크리스트를 작성하였다. 작성될 체크리스트는 측량 관련 전문가 집단의 면담 조사를 통하여 중요도를 분석하여 측량 리스크 체크리스트를 작성하였다.

• Architectural research
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• 제21권2호
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• pp.49-57
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• 2019

Risk assessment during pre-construction phase is important due to the uncertainty of the risks that may exist in projects. Risk checklist is a method to systematically classify and organize the risks that have been experienced in the past, and to identify the risk factors that may be present in the future projects. In addition, risk value assessment based on checklists plays a key role in risk management, and various risk assessment researches have been conducted to carry out this systematically. However, previous approaches have limitations in common, this is because risk values are evaluated individually in risk checklists, which ignore interdependencies among risk factors and neglect the emergence of co-occurrence of risks. Hence, when multiple risk factors cooccur, they cannot be far off from the conventional method of summing the total risk value to establish the risk response strategy. Most of risk factors are interdependent and may have multiple effects if occurred than expected. In particular, specific cause can be overlapped if multiple risks co-occur, and this may result in overestimation of the risk response for the future project. Thus, the objective of this research is to propose a model to help decision makers to quantify the risk value reflecting the interdependency during the identification phase using existing risk checklist that is currently being practiced in actual construction projects. The proposed model will provide the guideline to support the prediction and identification of the interdependency of risks in practice. In addition, the better understanding and prediction of the exceeding risk response by co-occurring risks during the risk identification phase for decision makers.

• 융합경영연구
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• 제10권5호
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• pp.1-6
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• 2022

Purpose: To overcome the question that depends too much on expert's subjective judgment in traditional risk identification, this paper structure the multilevel generalized fuzzy comprehensive evaluation mathematics model of the risk identification of project, to research the risk identification of the project. Research design, data and methodology: This paper constructs the multilevel generalized fuzzy comprehensive evaluation mathematics model. Through iterative algorithm of AHP analysis, make sure the important degree of the sub project in risk analysis, then combine expert's subjective judgment with objective quantitative analysis, and distinguish the risk through identification models. Meanwhile, the concrete method of multilevel generalized fuzzy comprehensive evaluation is probed. Using the index weights to analyse project risks is discussed in detail. Results: The improved fuzzy comprehensive evaluation algorithm is proposed in the paper, at first the method of fuzzy sets core is used to optimize the fuzzy relation matrix. It improves the capability of the algorithm. Then, the method of entropy weight is used to establish weight vectors. This makes the computation process fair and open. And thereby, the uncertainty of the evaluation result brought by the subjectivity can be avoided effectively and the evaluation result becomes more objective and more reasonable. Conclusions: In this paper, we use an improved fuzzy comprehensive evaluation method to evaluate a railroad engineering project risk. It can give a more reliable result for a reference of decision making.

• Environmental Analysis Health and Toxicology
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• 제25권3호
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• pp.207-214
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• 2010

Toxicity identification and quantification are important factors to evaluate the effect of industrial effluent on the aquatic environment. In order to measure the potential and real toxicity of mixed chemicals in the effluents, the biological method (i.e., WET test) should be used as well as chemical analysis method. In this study, we conducted WET test for various kinds of industrial effluents using aquatic organisms such as water flea (Daphnia magna), algae (Pseudokirchneriella subcapitata), fish (Oryzias latipes, Danio rerio), and microorganism (Vibrio fisheri). In addition, we carried out chemical analysis and TIE (Toxicity Identification Evaluation) for effluents in order to identify the substances causing toxicity. Among the 30 kinds of wastewater, S13 showed the highest eco-toxicity and $Ca^{2+}$ and $Cl^-$ ion were suspected as major compounds causing toxicity for aquatic organisms. In order to confirm these suspected compounds, various confirmation procedures need to be carried out.

• 품질경영학회지
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• 제42권3호
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• pp.311-324
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• 2014

Purpose: It can deduce improvement plan that recognizes any risk factors in initial production and mass production by using FMEA and through this process, the appropriate criteria for defence items can be established. Methods: It proposes two methodology - Apply DT/OT data achieved from the beginning mass production stage based on FMECA data of the design stage, to risk management, and risk management plan that reflected line and field faliure data in case of is offered. Results: It proposes the risk management plan through Bayesian method and the risk identification that considered MTTF estimated value in case of initial production process. In case of mass production process, both risk identification by using fault occurrence frequency scores and Byaesian method, In case of the Initial production and mass production, it proposes use both two methods. Conclusion: A more realistic risk identification method can be applied, and by this method the quality improvement effect is expected.

• 대한안전경영과학회지
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• 제17권2호
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• pp.1-11
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• 2015

Enterprise Risk Management(ERM) is aiming at the establishment of the risk management process to prevent and cope with risks in advance and is composed of Risk Identification, Risk Assessment, Risk Response and Monitoring. It is feedback through the Risk Re-identification. This study has analysed a sample of the risk management system of an airport operating corporation, for this purpose, relevant documents and examples of overseas airports have been reviewed. It has found that corporations establishing ERM have been performing identical procedures such as the process of Identification, Assessment, Effective Reporting, Communication and monitoring and so on. The A corporation has established the process for risk management and crisis management and organized for its organization and system. The risk management has the same process such as above. In this process, when the symptoms of critical crisis have been recognized, it has been transformed into crisis management system, through which, corporate-wide response has been conducted in the process of crisis status analysis, response and follow-up management. This study expects to contribute to systematic foundation for future business continuity on the basis of risks and response procedures acknowledged by this study.

• 한국건설관리학회논문집
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• 제16권1호
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• pp.15-23
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• 2015

건설산업에서 리스크관리는 글로벌 경쟁력 지표를 평가하는 요소로써 활용될 뿐만 아니라 기관 및 기업들의 경쟁력을 확보하기 위한 분야로써 꾸준한 관심을 받고 있다. 효과적인 건설리스크 관리를 위해서는 재무관리, 보험관리, 안전관리 등 기업차원의 전사적인 리스크관리 범위에서 실제 건설현장에서 활용할 수 있는 구체적인 업무 프로세스의 개선이 필요하다. 건설리스크 관리를 위해서는 무엇보다 어떤 리스크가 내재되어 있는지 식별하는 단계가 중요하며 리스크 식별이 선행되어야 그에 따른 대응전략 수립 및 관리방안에 대한 모색이 이루어진다. 본 연구에서는 리스크 식별, 분석, 대응방안 수립, 모니터링 및 관리 등 건설리스크 관리를 위한 단계 중 리스크 식별에 대한 업무 프로세스 개선에 초점을 맞추어 사례현장의 리스크 식별을 위한 체크리스트 도출 과정 및 방법을 제안하고자 한다. 사례현장은 사업단계별 리스크 분류체계 도출을 통해 리스크 요인에 대한 원인을 파악하여 리스크 요인의 위험도 저감 또는 제거를 위한 점검 방안으로써 체크리스트를 도출하였다. 이러한 사업의 특성 및 성격을 고려한 체크리스트 도출 과정은 효과적인 리스크 식별을 가능하게 하고 체계적인 리스크관리 수행을 유도하여 프로젝트의 성공적인 완수에 기여할 것으로 예상된다.