• 한국안전학회지
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• 제36권4호
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• pp.80-87
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• 2021

Risk assessment techniques are processes used to evaluate hazardous risk factors in construction sites, facilities, raw materials, machinery, and equipment, and to estimate the size of risk that could lead to injury or disease, and establish countermeasures. The most important thing in assessing risk is calculating the size of the risk. If the size of the risk cannot be calculated objectively and quantitatively, all members who participated in the evaluation would passively engage in establishing and implementing appropriate measures. Therefore, this study focused on predicting accidents that are expected to occur in the future based on past occupational accident statistics, and quantifying the size of the risk in an overview. The technique employed in this study differs from other risk assessment techniques in that the subjective elements of evaluators were excluded as much as possible by utilizing past occupational accident statistics. This study aims to calculate the size of the risk, regardless of evaluators, such as a manager, supervisor, safety manager, or employee. The size of the risk is the combination of the likelihood and severity of an accident. In this study, the likelihood of an accident was evaluated using the theory of Bud Accident Chainability, and the severity of an accident was calculated using the occupational accident statistics over the past five years according to the accident classification by the International Labor Organization.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 추계학술대회
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• pp.209-221
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• 2009

In the steel industry, steel is manufactured and processed to produce a variety of steel products. The industry provides fundamental materials to the whole range of industries including car, ship, electric appliance and construction industries, so that it is very important as an infrastructure industry. The steel manufacture process involves aerial work, many danger factors caused by the treatment with hazardous gases including BFG and COG and by high pressure gases including H2, O2, N2 and LPG. It requires the management over the large area because many workers work in a plant. The potential dangers in the steel plant were identified and the effect of the danger assessment was verified through the analysis of the danger assessment for the steel plant. The allowed degree of danger was lowered after the improvement through the danger assessment in the plant where the case studies were conducted, which indicates that the danger assessment is highly effective.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.254-261
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• 2004

Recently because of high-speed operation of trains, railway crossings become more and more hazardous components among the whole ones of railway system. It is desirable to remove all the railway crossings for reducing fatalities at railway crossings. it is impossible to eliminate all the crossings for unrealistic investment, so it should be considered to construct multi-level crossings by the order of priority. In this paper operation conditions, various hazard factors on the train accident at domestic railway crossings and foreign cases of risk-based safety assessment models are reviewed and then necessary record data that be added and modified, some essential considerations for developing railway crossing safety assessment software program are proposed.

• 사물인터넷융복합논문지
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• 제8권6호
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• pp.65-73
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• 2022

본 연구는 노인일자리 전담기관인 시니어클럽에 활동하고 있는 참여 노인을 대상으로 업무상 위험사고와 코로나-19로 인한 위험사고 발생 가능성을 실증 분석하여 위험사고에 대한 인식 정도를 파악하였다. 연구 결과를 바탕으로 노인일자리 전담기관에서 발생할 수 있는 위험사고 개선방안 마련을 위한 기초자료 제공과 위험사고 예방을 위한 대응방안을 제시하는 것이 목적이다. 연구 대상과 자료수집은 부산광역시 소재 16개 시니어클럽 참여 노인으로 하였고, 수거된 430부 중 최종적으로 425부를 활용하였다. 본 연구 결과 첫째, 노인일자리 전담기관 참여 노인은 업무상 위험사고 발생 가능성과 코로나-19로 인한 위험요인 발생 가능성은 대체적으로 낮게 인식하고 있는 것으로 나타났다. 둘째, 인구사회학적 특성에 따른 업무상 위험사고 발생 가능성은 참여기간에서 통계적으로 유의미한 차이가 있는 것으로 나타났고, 코로나-19와 위험사고 발생 가능성은 참여노인 구분과 연령에서 통계적으로 유의미한 차이가 있는 것으로 나타났다. 본 연구 결과를 바탕으로 사업담당자는 안전사고 관리기록지 작성, 위험관리 매뉴얼 마련, 참여자의 개인적 특성을 반영한 위험관리 시스템 구축 등을 제언하였다.

• 한국안전학회지
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• 제30권5호
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• pp.108-113
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• 2015

Plastic injection moulding machine is widely used for many industrial field. It is classified into mandatory safety certification machinery in Industrial Safety and Health Act because of its high hazard. In order to prevent industrial accidents by plastic injection moulding machine, it is necessary for designer to identify hazardous factors and assess the failure modes to mitigate them. This study tabulates the failure modes of main parts of plastic injection moulding machine and how their failure has affect on the machine being considered. Failure Mode & Effect Analysis(FMEA) method has been used to assess the hazard on plastic injection moulding machine. Risk and risk priority number(RPN) has been calculated in order to estimate the hazard of failures using severity, probability and detection. Accidents caused by plastic injection moulding machine is compared with the RPN which was estimated by main regions such as injection unit, clamping unit, hydraulic and system units to find out the most dangerous region. As the results, the order of RPN is injection unit, clamping unit, hydraulic unit and system units. Barrel is the most dangerous part in the plastic injection moulding machine.

• 기본간호학회지
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• 제6권2호
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• pp.185-197
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• 1999

For the past 10 years, the number of male smokers has dwindled. On the other hand, the number of female smokers has increased abruptly. Cigarette smoking is more hazardous to a woman than to a man because it can affect her health and her fetus during pregnancy. Many studies show that cigarette smoking is one of the most important risk factors determining the mortality and the morbidity of various kinds of diseases such as lung cancer and pharyngeal cancer. But, it is also known to be one of the risk factors we can handle and prevent easily. The subjects of this study consisted of 263 female nursing students in Seoul and Chonbuk Province. Using questionnaires, we were collected data from December 1 to December 10 1998. The questionnaire included 24 questions related to environmental factors and 14 questions related with self-efficacy. The statistical analysis was done with SPSS ver. 8.0(SPSS Inc. U.S.). The results of this study are as follows. 1) Cigarette smoking in women was influenced by her family or friends. That is to say, the higher number of her friends or family members who smoked cigarettes, the more likely a woman was to become a smoker. Economic status and knowledge level about the risks of cigarette smoking were also related to women smoking. So, women with lower levels of economic status and less knowledge about the risks of cigarette smoking were the more likely to become smokers. 2) Woman with higher levels of self-efficacy were less likely to become smokers. 3) The factors influencing a woman's smoking were whether her friends smoked, whether her mother smoked and her self-efficacy in that order. Environmental factors, self-efficacy were found to be important factors influencing smoking in women. It is suggested a quit-smoking program for women college students, be based on consideration of these environmental factors and self-efficacy.

• 한국컴퓨터정보학회논문지
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• 제25권9호
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• pp.143-150
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• 2020

본 연구는 다중위해사례를 중심으로 경호임무수행 간 출입통제 활동을 실시하는 과정에서 유발되는 경호원의 휴먼에러가 무엇인지 규명하고 그에 따른 대책을 제시하는데 목적이 있다. 이를 검증하고자 사건의 순서를 시계열로 배열한 뒤 변동노드를 중심으로 문제점을 파악할 수 있는 'VTA 기법'과 'Why-Why 분석 기법'을 활용하였으며, 추가적으로 'M-SHEL Matrix'를 통하여 휴먼에러를 유발하는 환경요인과 개인요인을 추출하였다. 분석결과, 출입통제 사고를 유발하는 경호환경요인으로는 시간부족(조급함), 방문자에 대한 편견, 편중된 근무방법, 보안 관리미흡, 무사안일주의, 익숙한 분위기(긴장이완), 형식적인 근무활동, 편의제공, 과소평가 등으로 조사되었다. 그리고 경호원 개인적 측면에서 유발되는 휴먼에러는 낮은 경계의식, 형식적인 근무, 검측소홀, 안일한 대처 등으로 조사되었다.

• Safety and Health at Work
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• 제13권2호
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• pp.135-140
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• 2022

Background: Coal mining is a hazardous industry. The purpose of the study is to identify the nature of occupational injuries and diseases among coal miners and to determine the factors that affect the rate of injury and duration of time loss from work. Methods: A retrospective cohort study was conducted using accepted workers' compensation claims data of 30,390 Australian coal miners between July 2003 and June 2017. Results: Musculoskeletal and fracture conditions accounted for approximately 60% of claims in all occupational groups. Cox regression analysis showed that older age and female gender were significant predictors of longer time off work. Injury types and occupations were associated with work time loss: mental health conditions, and machine operators and drivers had significantly longer durations of time off work. Conclusion: Future research can further address how these factors led to longer time off work so that coal industry regulators, employers, and healthcare providers can target interventions more effectively to these at-risk workers.

• 한국산업보건학회지
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• 제8권1호
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• pp.36-49
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• 1998

The purpose of this study is to investigate the relationship between the work postures and upper extremity cumulative trauma disorders(CTDs) in female medical insurance bill reviewers(n=448). This study included diagnosis for CTDs, anthropometry and job analysis (workstations and posture). The characteristics of subject were 33.6 years of average age and 8.7 years of average work duration. The results were as fallows. Ergonomic conditions of workstation were unsuitable compared with anthropometry result. The height of work surface(79.5 cm) and chair(43.0 cm)were high. work space was small, and legs space under the table was limited. Work postures were awkward compared with recommended neutral postures. Neck flexion($21.0-36.0^{\circ}$), elbow elevation, shoulder abduction ($46.0-47.0^{\circ}$). wrist radial and ulnar deviation, forearm supination and pronation, and wrist repeated motion(12.7-21.5 freq./min) were analyzed as hazardous risk factors by job analysis. The prevalence of CTDs was 32.8 % by medical diagnosis. The prevalence rate of CTDs in hazardous work posture group was significantly greater than safe work posture group both neck-shoulder (relative prevalence = 5.2, p<0.001) and wrist-hand (relative prevalence = 2.5, p<0.05).

• Safety and Health at Work
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• 제15권2호
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• pp.200-207
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• 2024

Background: Workers are often exposed to hazardous heat due to their work environment, leading to various injuries. As a result of climate change, heat-related injuries (HRIs) are becoming more problematic. This study aims to identify critical contributing factors to the severity of occupational HRIs. Methods: This study analyzed historical injury reports from the Occupational Safety and Health Administration (OSHA). Contributing factors to the severity of HRIs were identified using text mining and model-free machine learning methods. The Multinomial Logit Model (MNL) was applied to explore the relationship between impact factors and the severity of HRIs. Results: The results indicated a higher risk of fatal HRIs among middle-aged, older, and male workers, particularly in the construction, service, manufacturing, and agriculture industries. In addition, a higher heat index, collapses, heart attacks, and fall accidents increased the severity of HRIs, while symptoms such as dehydration, dizziness, cramps, faintness, and vomiting reduced the likelihood of fatal HRIs. Conclusions: The severity of HRIs was significantly influenced by factors like workers' age, gender, industry type, heat index , symptoms, and secondary injuries. The findings underscore the need for tailored preventive strategies and training across different worker groups to mitigate HRIs risks.