• Title/Summary/Keyword: 리스크 요소

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Analysis of Schedule Risk using PROMETHEE (PROMETHEE 기법을 활용한 공정리스크 중요도 분석)

  • Lee, Jang-Young;Yoon, Yoo-Sang;Jang, Myung-Hoon;Suh, Sang-Wook
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.353-357
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    • 2008
  • The building construction projects include a variety of risk factors due to uncertainties. To succeed in the projects, it is important how risks are managed. Risk management processes identification, analysis and response. Especially, the analysis process is important to objectively identify importance and priority among risk factors. The purpose of this study is to develop the effective analysis process by studying and supplement the problem of the AHP analysis method. The study provides a analysis process to use the PROMETHEE analysis method proposed.

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A Comparative Analysis of Risk Assessment Depending on International Project Types (플랜트, 건축, 토목 공종별 해외건설 리스크평가 비교분석)

  • Baek, Seungwon;Han, Seung-Heon;Jung, Wooyong
    • Korean Journal of Construction Engineering and Management
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    • v.20 no.5
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    • pp.125-136
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    • 2019
  • This study investigated checked risk level before bid, actual risk level after award, contingency, and cost growth rate in the 124 international construction projects executed by Korean major companies. This study conducted comparative analysis by product type using rank analysis, ANOVA and correlation analysis. As a result, plant and civil projects have worse risk level than architecture projects not only in before bid but also in after award. Especially, country risk is the worst risk in both plant and civil projects, followed by project risk and capability risk. Also, although plant and civil projects reflect more contingency than architecture projects, contingency is not correlated with the checked risk level before bid. Lastly, the cost growth rate is correlated with the actual risk level in all product types. This study is expected to support in planning better practical risk management for international construction projects.

Development of Risk Breakdown Structure of Nuclear Power Plant Decommissioning Project: Focusing on Structural Damage / Work Process Risks (원전 차폐 콘크리트 구조물 제염해체공사 리스크 분류체계 구축: 구조적 / 작업 리스크를 중심으로)

  • Kim, Byeol;Lee, Joo-Sung;Ahn, Yong-Han
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.22 no.3
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    • pp.38-45
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    • 2018
  • The purpose of this study is to deduct the structural damage / work process risks factors which can be occurred during the decommissioning in the NPP containment concrete structure. To achieve these purpose, risk profile specified in the construction industry is analyzed, and the work process of NPP decommissioning and the construction project were matched based on the similarity of each works. Accordingly, human and physical risk factors are classified. Finally, the risk associated with the building structure and work process was classified as per their process activities, and risk typology explaining the disaster which put the structure, equipments, machine and workers in serious danger was developed.

The Strategy of Effectiveness Risk Management for Company (기업의 효율적인 리스크관리 방안)

  • Cho, Won-Gil
    • The Journal of Information Technology
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    • v.7 no.4
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    • pp.103-117
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    • 2004
  • The risk management industry has grown considerably in the past few years. Risk managers are entering the ranks of senior management, becoming a part of the decision making process and the oversight of its operations. Risks are inherent in any project. Furthermore, risk taking is essential to progress, and failure is often a key part of learning. Although some risks are inevitable, this does not mean that attempting to recognize and manage them will harm opportunities for creativity. Risk management is, and will remain, very much reliant on timely, clean and comprehensive data. Therefore, this paper was designed the current state of risk management practice, and planning the strategy of effectiveness risk management for company.

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Methodology of Constructing spatial information for Risk Assessment (재난리스크 평가를 위한 리스크 요인의 공간정보화 방안)

  • Lee, Jae Joon;Yun, Hong Sik;Kim, Tae Yun
    • Proceedings of the Korean Society of Disaster Information Conference
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    • 2016.11a
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    • pp.400-401
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    • 2016
  • 본 논문은 재난 리스크 평가를 위한 집계구 통계자료의 활용방안에 대한 연구를 수행하였다. 인구통계자료, 주택통계자료, 전국사업체 자료는 재난취약성분석과 리스크 평가를 위한 필수 요소이다. 재난의 분석과 평가를 위하여 GIS에 구축하는 자료로는 인구의 총인구, 평균나이, 인구밀도, 노령화지수, 교육수준 등이 있다. 이 자료들을 공간정보로 구축함으로써 기존의 넓은 수준의 데이터를 활용하는 것 보다 정밀한 분석이 가능하다고 판단된다. 또한, 인구와 관련된 데이터뿐만 아니라 집계구 통계 자료는 주택의 건축년도와, 주택의 유형(다세대, 아파트, 연립, 영업용건물주택의 정보를 가지고 있다. 이는 건물의 경제적 평가를 위한 자료로 활용될 것이다. 또한 선정된 지역의 사업체를 분류하여 각 폴리곤의 주요 사업체를 조사하여 공간정보를 구축함. 구축된 공간정보는 리스크 평가를 위한 자료로서 활용될 수 있다 판단된다.

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An Analysis of Time Varying Beta Risk in Domestic Renewable Energy Company (국내 신재생에너지 기업의 리스크 분석)

  • Lee, UiJae;Heo, Eunnyeong
    • Environmental and Resource Economics Review
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    • v.22 no.1
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    • pp.99-125
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    • 2013
  • Renewable energy industry not only has a promising future but also has more risk than conventional energy industry because of its characteristics. Therefore, in this study, an analysis of domestic renewable energy company risk has been performed. The risk of domestic wind and photovoltaic energy companies has been analyzed by using time varying beta model. The model has been constructed based on risk factors like firm size, firm diversification index, domestic installation, and so on. The principal result of analysis can be summarized as follows. First, risk factors affect domestic renewable energy companies have been discovered. Variables like firm size, growth rate of debt ratio, firm diversification index are statistically significant. I found that large firms are less riskier than small firms. It is also confirmed that companies with high diversification index and high debt ratio have high risk. Second, I got the result that policy factors like domestic renewable energy installation and government R&D expenditure could decrease risk of domestic renewable energy company. Third, relative sensitivity of each risk factor have been discovered. The effect of each variable gets bigger in this order: growth rate of domestic installation, firm size or diversification index, growth rate of debt ratio, growth rate of government R&D expenditure.

The Analysis of Risk Factors for Apartment Remodeling Feasibility Study (공동주택 리모델링 사업성 평가를 위한 위험요소 분석)

  • Lee Teck-Wn;Kim Kyoon-Tai;Han Choong-Hee;Kim Sun-Kuk
    • Korean Journal of Construction Engineering and Management
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    • v.3 no.4 s.12
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    • pp.84-92
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    • 2002
  • Recently, apartment-remodeling project is booming since various reconstruction controls are tightened. However, the project has difficulties because management systems used for apartment-remodeling projects are not available. Identifying and analyzing risk factors that are required for risk management, this paper suggests the risk level through paired comparison performed by AHP method and probability assessment for risk level analysis. It is expected that this research will be utilized to minimize the risk of apartment remodeling project and for basic materials to perform the project and helpful to change newly build-oriented construction into sustainable industries. Hereafter using the risk factor analysis data of this paper for this research project, risk management model is considered to be constructed.

Study on the Risk Factors of Construction Projects since COVID-19 (COVID-19가 건설프로젝트 리스크에 미치는 영향)

  • Lee, Jae-Hyun;Lee, Seong-Hyeon;Lee, Donghoon
    • Journal of the Korea Institute of Construction Safety
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    • v.4 no.1
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    • pp.1-8
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    • 2021
  • COVID-19, which is currently in vogue, is a pandemic with the largest number of deaths since the establishment of the "World Health Organization". It is also expected to have a significant impact on countless construction projects. After COVID-19 hit the construction industry, the risk that they needed to cover, decreased every year. However, the prolonged COVID-19 increased the risks of air delays, material supply, and economic losses. The exact measurements will be needed to be identified and the risks of the current construction projects must have a mitigated risk with a greater proportion. Therefore, the purpose of this study is to analyze and identify the risks that have influenced construction projects to the domestic construction companies due to COVID-19. Based on the risks of the previous construction projects, risk case studies, and risks related to COVID-19, are extracted through surveys, weights. Each risk factor are calculated based on the AHP analysis technique. Thus, it is expected that the results of the risk research on construction projects will change due to COVID-19. It will be presented to cope with the current situation and later pandemic situations.

Risk Factor Classification and Weight Estimation for Urban Regeneration Project (도시재생사업의 리스크요인 분류 및 중요도 산정)

  • Cho, Jae-Kyung;Hyun, Chang-Taek;Yoon, You-Sang;Jin, Run-Zhi;Cha, Yong-Woon
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.4
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    • pp.89-99
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    • 2012
  • Urban regeneration projects tingeing the shape of mixed-use development, due to the nature of the business, involve risk factors such as protracted business conflict among participations, subjects, complex approval and permission procedure, frequent policy changes, etc. Therefore, systematic risk management is needed to effectively manage the numerous risk factors that may occur during the process course of project. However, risk management of large and complex development projects such as urban regeneration projects is in the introduction stage yet and somewhat one time risk management plan has been established. Therefore, in this study, in order to systematic risk management of urban regeneration projects inhered numerous risk factors, risk factors for urban regeneration projects through preceding studies and case studies were presented. Also risk factors are classified in accordance with business propulsion phase, by estimating the importance for these, step by step emphasis on managed subjects of risk management was proposed.

The research and correspondence of schedule risk management at the pre-construction phase of curtain-wall (커튼월 공사의 착공 전 단계에서 공정 리스크 규명 및 대응방안)

  • Jung Tae-Sik;Kim chang-duk
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.4 s.26
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    • pp.71-79
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    • 2005
  • As construction projects have been extremely enormous, complex and special, risk factors have been increased consistently. Therefore, it is very important to identify and cope with the uncertain risk factors in such building constructions for successful project accomplishment. The purpose of this research is to approach practical affairs directly and show detail alternatives of risk factors by extracting the risk factors throughout construction process of curtain wall that is largely influenced on cost, quality, schedule ,safety and following activity. Also, extracting these risk factors make it possible to analyze quantitative risk and decide the priority raking of risk factors. Especially, this research is aimed to provide efficient management of scheduling risk that can make the risk minimize to practical workers who have different degree of knowledge and experience to the construction cite when the risk brings out suddenly.