• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.504-509
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• 2004

Safety assessment of construction projects may be affected by various factors such as types and scale of projects, construction methods, procedure, climactic, and site conditions etc. Presently, in planning and design phases, designers are still often uncertain of their responsibilities, l3i]I information and training of safety. Therefore, designers are still failing to exploit the potential that have to eliminate and reduce risks on site. In this study, the concepts of safety impact assessment is introduced in order to derive the performing design for safety in design phase. For this purpose, a framework for safety impact assessment model using risk-based approach for construction projects is suggested. The suggested model includes of information survey and scenarios, classification of safety impact factors occurred by design and construction, and quantitative estimation of magnitude and frequency. Moreover, the checklist which is enable to identify relationship between safety impact factors and design factors is developed and the methodology of safety impact assessment model using risk-based approach is also proposed.

• Proceedings of the Korea Water Resources Association Conference
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• 2008.05a
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• pp.1659-1663
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• 2008

홍수 범람에 의한 피해를 경감시키기 위해서는 하천관리에 필요한 제반 수리 수문 자료를 지속적으로 축적함으로써 하천관리의 과학화를 도모해야 하며 효율적인 홍수피해 경감을 위한 체계를 구축해야 한다. 이를 위한 기초 자료로써 범람 홍수의 거동특성을 파악하는 것은 무엇보다도 우선되어야 한다. 본 연구에서는 극한 홍수의 발생으로 제방의 붕괴위험이 증가되는 상황을 고려하여 과거범람 지역 조사 및 분석, 제방마루 높이와 여유고 평가, 무차원 소류력에 의한 취약지점 분석 및 제방의 월류위험도 분석을 통해 홍수재해에 대한 취약지점 선정 및 제내외지의 홍수특성 분석 방법을 제안하여 현실적인 하천방재계획 수립에 기여하고자 하였다.

• Korean Chemical Engineering Research
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• v.45 no.1
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• pp.103-108
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• 2007

HAZOP analysis is a systematic method on the basis of the experts' experience and knowledge and is used for hazard identification and risk assessment by using brainstorming method. So, HAZOP analysis has been applied to major chemical industries efficiently. But it does not apply to small and midium chemical industries because of the insufficiency of the experts. Hence, in this study a new hazard identification method is proposed by modifying complexity and expertise of the HAZOP analysis and will be contributed to improve risk management for small and midium chemical industries.

• Journal of Korean Society of Disaster and Security
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• v.5 no.2
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• pp.61-70
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• 2012

The range of special management target facilities is seperated by the building sector and the field of civil engineering. In the present study, the risk analysis was performed, related to fire occurred for the last five years, in the field of residential and non-residential facilities in buildings. Most of fire incidents occurred in residential and non-residential facilities was the cause of the electrical, and the resulting casualties were also very high. Therefore, based on the results, the risk evaluation index was developed, identifying the causes of fire occur and doing the fire vulnerability analysis for each facility. The result of this study can be utilized safety management to these facilities for the future, especially, inducing a more specialized and intensive safety management.

• Journal of the Korean Society for Railway
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• v.12 no.4
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• pp.443-449
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• 2009

This study propose a model for railway safety evaluation with which the safety of whole railway system can be evaluated. The evaluation model is to generate a safety index which quantitatively represent the degree of railway safety. Safety index is proposed a function of three indexes; an accident index, safety management index, and safety culture index. This paper describes the first result from the study on the safety target which will be a key starting point toward the development of safety evaluation model. It is recommended that the safety target be composed of several sub-targets that are apportioned to constituent components. It is coneluded that the classification of safety target influence on deciding components or attributes that constitute each sub-indexes; an accident index, safety management index, and safety culture index.

• Journal of Technology Innovation
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• v.21 no.1
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• pp.165-198
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• 2013

The purpose of the study is to identify risk factors and analyze risk impacts to increase R&D outcome by taking into consideration the activities undertaken in each phase of New Product Development(NPD) process. The paper builds on survey research that has been developed new IT products within the past 5 years at SAMSUNG and LG subsidiaries in the Republic of Korea. This study identified risk factors in accordance with NPD process and evaluated the identified risk factors with survey questionnaires. To analyze the risk impacts were used to perform a logistic regression analysis based on R&D output. The impact of risk factors were higher for the low-output group. High-output group took a risk into consideration unique undertakings in project management and managed risk factors effectively in order to increase R&D output. Consequently, with the aim of improving output of R&D, a risk management is necessary to identify the risk factors for each phase of NPD and focus on managing risk factors with great effect.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.50-50
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• 2017

도시홍수의 잠재적 위험은 홍수경감계획이 발전됨에 따라 감소하지만, 침수피해 가능성은 도시화와 도시 확장에 따라 증가한다. 침수피해 가능성에 대한 사전 파악 및 위험도 분석은 대규모 침수재해 발생 시의 위기관리에도 도움을 준다. 또한, 경제적 피해에 대한 예측은 재해발생 후 복구 및 복원 작업에 필요한 자원 할당에 매우 유용하며, 잠재적 홍수 피해에 대한 예측은 장기적인 홍수경감계획과 재해관리에 필요하다. 본 연구에서는 다차원 침수해석 모형의 결과로 산정 가능한 침수심, 유속 등의 지표들을 복합적으로 고려하여 침수위험도를 산정하고, 침수 발생 위험이 있는 지역의 인문 사회 경제적 지표를 통해 피해 저감 및 복구성을 반영하기 위한 재해 취약인자를 선정하여 해당 지역에 대한 취약도를 산정하였다. 또한, 분석된 위험도와 취약도의 연산으로 통합리스크 분석을 실시하여 침수 발생 시 해당지역에 대한 피해 예상과 지역별 상대평가가 가능하도록 하였다. 위험도와 취약도 및 리스크 분석은 다양한 인자를 동시에 고려하기 위해 여러 개의 기준에 대한 선호도를 결정하거나 최적 대안을 선택하는 다기준의사결정(MCDM)기법을 적용하였으며, MCDM기법 중 보편적으로 많이 이용되는 TOPSIS기법을 적용하였다. 이러한 리스크 분석은 우리나라 전체, 특정 시도, 시군구, 읍면동 간의 침수피해와 관련한 상대적 비교 평가가 가능하며, 대응 및 대비의 관점에서 저감 대책 수립의 우선 지역을 도출하는 데 활용될 수 있을 것이며, 침수피해 발생 후, 리스크가 큰 지역에 대해 우선적으로 복구 조치가 이뤄질 수 있을 것이다. 또한, 한정된 지자체 예산 안에서 도시홍수 피해 경감 대책 수립을 위한 의사결정에 활용될 수 있을 것으로 판단된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.3
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• pp.61-68
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• 2018

In general, defects cause a lot of maintenance costs and serious damage to various stakeholders, such as the owners, contractors or occupants of apartments. For this reason, a systematic and efficient defect management method is needed to minimize defect disputes. This paper derives a defect classification framework and proposes a defect risk assessment model for different types of defects. For this purpose, 6,000 defect items are allocated to the defect classification framework; these items are associated with 34 apartment projects over ten years old. As a result of this analysis, it was confirmed that the defect risks are concentrated in the areas of RC and finishing work. Based on these results, it is necessary to prevent the major risks of defects according to their priority. Based on this research, it is judged that further research to develop a method of managing the risks of defects may be necessary.

• Korean Journal of Construction Engineering and Management
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• v.4 no.1 s.13
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• pp.122-130
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• 2003

Nowadays, as construction projects become bigger, the probability of construction accidents is higher than any other day. When construction accidents break out, we may suffer from the loss of life and property. For preventing these damages, there is lawed that some public constructions have to insure Contractor's all risks insurance policy (CAR), However, CAR is used to preventing the insured from the loss of construction accidents, it is debated that the premium rate of CAR is not fair to the insured (contractors) The objects of this thesis are as follows Firstly, the fairness of the premium rate of CAR is reviewed, and then the amount of risk of the insured evaluates and applies to the premium rate. Secondly, the development direction of components for evaluating the amount of risk of the insured is presented in the research. Lastly, how to use the team which assesses the risk of the insured and construction works is proposed for deciding reasonably the premium rate of CAR

• Journal of the Korean Institute of Gas
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• v.7 no.1 s.18
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• pp.33-40
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• 2003

In this work, a novel approach was introduced to assess cost of loss resulting from risk as well as to help deciding inspection period through quantifying risk. In order to quantifying risk of city gas pipeline, frequency and consequence analysis were required. The main causes of city gas accident were analyzed to be digging, external corrosion, ground movement, and equipment failure. Tools to evaluate frequency of each cause was also suggested. Among city gas accidents, fire damage is the dominant one and mainly discussed; fatality, burning injury, and damage to building were estimated using the consequence model suggested. By combining frequency and consequence analysis, evaluating cost of risk management together with calculating example. This work could be applicable for city gas companies to plan how to manage risk most effectively.