• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.04a
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• pp.432-435
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• 2011

산불로 인한 피해는 비단 산림뿐만 아니라 산림인접지 가옥, 사찰과 같은 건축물에서도 발생된다. 특히, 사찰은 국보뿐만 아니라 다양한 문화재를 보유하고 있어 산불로 인해 소실될 경우 문화 자산의 피해가 불가피하다. 이에 국보보유사찰, 문화재 다량보유사찰, 조계종 교구 본사, 세계문화재 등재 사찰 등을 포함한 우리나라 주요사찰 42개소에 대해 미국 Firewise 및 캐나다의 Firesmart에서 제시한 산림인접지 시설물의 위험성 평가 방법을 기반으로 체크리스트 기법을 이용하여 '사찰 산불 위험성 평가'를 실시하였다. 체크리스트 주요 항목은 크게 입지 여건, 임상 및 산림과 사찰의 이격거리, 산불발생 개연성, 사찰 주변 가연물 화재위험성, 적정소방시설 여부, 기타 화재방지를 위한 시설물 평가 등 총 6개 항목으로 구분하여 26개 세부항목을 작성, 평가하였다. 정성적 위험성 평가 결과, 산불로 인한 화재 위험성이 높은 사찰과 산불피해 저감 대책을 제시하였고 향후, 정량적 위험성 평가를 통한 위험관리 모델 제시에 관한 연구를 수행하고자 한다.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.05a
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• pp.317-322
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• 2002

위험성 편가의 목적은 현재의 위험 상태를 평가하고 이들 위험이 허용가능한가를 평가하여 시스템의 개선과 위험을 감소시기는 데 있다. 기업에서 모든 위험을 Zero화 시킨다는 것은 현실적으로 어렵기 때문에 사업장에서 발생할 수 있는 모든 이탈 상태를 파악하고, 안전경영의 우선순위를 정하여 운영해야 한다. 이에 필요한 것이 위험성 평가이며 위험성 평가의 필수적인 요소는 정량화를 통하여 허용가능성 여부를 판단하는 것에 있다.(중략)

• Fire Science and Engineering
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• v.17 no.4
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• pp.20-27
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• 2003

Hazard Analysis is one of the basic tasks to ensure the safety of chemical plants. However, it is an arduous, tedious, time-consuming work and requires multidisciplinary knowledge and demands considerable cognitive load from the analysts. To overcome these problems, there have been attempts to automate this work by utilizing computer technology, particularly in the area of knowledge-based technique. There is two methods in the risk assessment of Chemical plant; quantitative and qualitative risk assessment. Both of them have been applied respectively, but if the integrated method of quantitative and qualitative risk assessments is used, all of the advantage of two methods can be applied. It is difficult to carry out integrated risk management of chemical plant. Therefore, automated integration system of risk management is necessary. We developed S/W Automated System for Hazard Screening & Analysis(ASCA) and applied to practical plant. By applying ASCA to case study, we can get the information about relative ranks of equipments, variable deviation, and consequence of potential accident. In this study, we applied ASCA to the H.T.U(Hydrotreating Unit) of the process to produce aromatic material. We could know relative ranks of equipments, variable deviation of malfunction in storage tank, D-101, and consequence of potential accident using ASCA. If integrated risk management in the chemical plant is applied, we can develop the emergency plan and prevent the accident.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.05a
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• pp.381-386
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• 2002

2002년 7월 1일부터 시행되는 제조물 책임법에 대비하여 기업에서 준비하여야 하는 사항중에 가장 어려움을 느끼는 부분중의 하나가 제품의 안전성 평가 부문이다. 제품의 안전성 평가는 과거의 성능검사나 특성검사가 아니라, 사용자의 오사용으로 야기될 수 있는 위험성의 평가까지도 고려하여야 한다. 이에 대표적인 정량적 안전성 평가기법인 FTA(Fault Tree Analysis)를 사용하여 전기 밥솥에 대한 정량적 평가를 실시하여 보았다. 전기밥솥에서의 잠재위험 중 가장 피해가 클것으로 생각되는 화재를 정상사상으로 하고 이에 대하여 m.cutset 분석과 빈도분석 등을 시행하여 제품안전성평가의 과정과 분석방법들을 설명한다.(중략)

• 한국방재학회:학술대회논문집
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• 2011.02a
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• pp.46-46
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• 2011

가뭄은 인간이 극복하기 힘든 자연재해로 사회, 경제, 환경등에 막대한 피해를 가져온다. 따라서, 이를 극복하기 위해 지속적인 가뭄 모니터링이 필요한데, 현재 가뭄의 모니터링은 대부분 기상학적 인자를 고려한 가뭄지수의 심도에 의해 이루어지고 있다. 본 연구는 이러한 가뭄모니터링 방법을 좀 더 현실적으로 개선시키고자 가뭄심도를 근거로 가뭄발생 빈도와 가뭄발생 시 취약인자의 선정을 통해 가뭄위험평가기법을 제안하였다. 이를 위해 가뭄의 위험정도를 정량화하고 가뭄발생으로 인해 발생 가능한 피해 요소들을 정량화하여 가뭄재해지수(Drought Hazard Index)와 가뭄취약성지수(Drought vulnerability Index)를 산정하고, 두 지수의 결합으로 가뭄위험지수(Drought Risk Index)를 산정하였다. 가뭄재해지수는 가뭄지수 EDI를 바탕으로 가뭄심도에 따른 발생확률을 근거로 산정하였으며, 가뭄취약성지수는 가뭄 발생 시 취약한 인자를 선정하여 이를 지수화 하였다. 가뭄위험평가의 적용을 위해 2001년의 경상도 지역의 가뭄을 평가하였다. 가뭄위험지수를 바탕으로 경상도 지역의 가뭄의 위험정도를 평가할 수 있는 가뭄위험지도를 작성한 결과 경상북도 지역이 경상남도 지역보다 가뭄발생빈도와 취약정도가 컸음을 확인할 수 있었으며, 경상도 내륙지방을 중심으로 가뭄의 위험이 높음을 확인할 수 있었다.

• Journal of Korean Society of Disaster and Security
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• v.16 no.1
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• pp.23-35
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• 2023

Recently, the damage caused by natural disasters such as typhoons and localized torrential rains has been increasing rapidly. The Ministry of the Interior and Safety enacted a ｢law on safety management of small sized infrastructures｣ and local governments have to register small sized infrastructures with the National Disaster and Safety Management System (NDMS) until March 31st every year. Recently, each local government has ordered Safety inspections of small sized infrastructures and maintenance plans and six types of facilities, including small streams, small bridges, farm roads, access roads to village, inlet weirs, and drop structures are being surveyed and digitized into a database. Each facility is being evaluated for risk, and for those deemed hazardous, maintenance plans are being developed. However, since the risk assessment method of small sized infrastructures is not clear so that is conducted through visual investigation by field investigators, risk assessment is conducted in a subjective and ambiguous form. Therefore, this study presented a reasonable and quantitative risk assessment method by providing a quantitative evaluation indicator for small stream, which has the highest disaster risk among other small sized infrastructures, so that small sized hazard infrastructures can be selected to secure transparent evidence for improvement plans and action plans.

• Journal of the Korean Association of Geographic Information Studies
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• v.14 no.3
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• pp.203-222
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• 2011

The characteristics of flood damages have been increasingly strengthened and take the form of unpredictable and unusual weather phenomena caused by climate change and climate anomalies. To prevent inundation damage caused by breach of hydraulic structure such as dam or levee, and trouble of drainage of inner basin, the prediction necessity of flood inundation area, flood risk analysis, and drawing flood risk maps have been on the rise, and the national flood risk maps have been produced. In this study, the quantitative flood vulnerability analysis was performed, which represents population living within flood-affected areas, types of economic activities, facilities affected by flood, in order to extend flood risk mapping from simple hazard concept into risk based idea. By applying it to Nakdong River basin, the flood vulnerability indices were estimated to draw flood risk maps subdivided into administrative districts. The result of this study can be applied to establish the disaster prevention measures and priority decision of disaster prevention project.

• Journal of the Korean Society of Marine Environment & Safety
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• v.22 no.5
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• pp.423-429
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• 2016

A study was conducted to analyze the oil spill dynamic state using system dynamics method, and to developed regional risk program based on oil spill history for better judgement of the situation at the early stage of oil spill. Results were obtained as follows: Firstly, various variables were calculated by a score based on raw data of oil spill history in Korea. Regional oil spill risk was also calculated in a quantitative way. Secondly, calculated regional oil spill risk was analyzed and programmed with a help of smart-device for better use. Thirdly, comparison of oil spill risk between regions became possible and regional oil spill risk program proved to be useful in prompt decision under urgent situation in response to oil spill at sea. Convenient and quick oil spill risk without special restrictions have been able to determine. and it can help in anticipative preparation (strategy) for oil spills.

• Journal of KIISE:Computer Systems and Theory
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• v.36 no.5
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• pp.380-386
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• 2009

It is most important that identifying security threats(or vulnerabilities) of critical IT assets and checking the propriety of related security countermeasures in advance for enhancing security level. In this paper, we present a new security risk evaluation scheme based on critical assets and threats for this. The presented scheme provides the coverage and propriety of the countermeasures(e.g., intrusion detection rules and vulnerability scan rules, etc.), and the quantitative risk level of identified assets and threats. So, it is expected that the presented scheme will be utilized in threat management process efficiently compared to previous works.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.5
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• pp.1179-1189
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• 2019

Cyber security evaluation is a series of processes that estimate the level of risk of assets and systems through asset analysis, threat analysis and vulnerability analysis and apply appropriate security measures. In order to prepare for increasing cyber attacks, systematic cyber security evaluation is required. Various indicators for measuring cyber security level such as CWSS and CVSS have been developed, but the quantitative method to apply appropriate security measures according to the risk priority through the standardized security evaluation result is insufficient. It is needed that an Scoring system taking into consideration the characteristics of the target assets, the applied environment, and the impact on the assets. In this paper, we propose a quantitative risk assessment model based on the analysis of existing cyber security scoring system and a method for quantification of assessment factors to apply to the established model. The level of qualitative attribute elements required for cyber security evaluation is expressed as a value through security requirement weight by AHP, threat influence, and vulnerability element applying probability. It is expected that the standardized cyber security evaluation system will be established by supplementing the limitations of the quantitative method of applying the statistical data through the proposed method.