• Title/Summary/Keyword: Safety problem

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Risk Estimation Study on Railway Track Worker Hit by Train (철도 운행선로 작업자와 열차 접촉사고 위험도 평가에 관한 연구)

  • Kwak, Sang Log
    • Journal of the Korean Society of Safety
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    • v.35 no.3
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    • pp.72-78
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    • 2020
  • The accident fatality rate has decreased by more than 90% compared to 2006, due to the safety management and safety investment based on the Rail Safety Act. Most railway safety indicators, including fatality rates, have improved significantly from 60% to 80%, reaching the level of developed countries in terms of most railway safety indicators. However, the only staff fatality rate at work is not improved, and it is 3 to 5 times higher than that of developed countries. Most of the fatality occurred during employee's work recently occurred due to accidents hit by train while track work. In principle, when operating track need to check or maintenance, the operation of the train should be stopped and the work carried out. However, in Korea, due to the highest passenger density and train operating density in the world, it is caused by a structural problem that requires workers to enter the track while the train is running and perform various tasks such as maintenance and inspection. In this study, we analyzed the risk of accidents caused by hit by trains on the track, which is the biggest cause of staff fatality, using the main statistics of the last 10 years. In detail, the scenarios of the main causes of hit by trains and workers were formed to suggest the effectiveness of the current preventive measures and supplementary.

A Study on the Estimating Rate of Safety Management Cost in Building Work (건축공사 안전관리비 비율 산정 모형에 관한 연구)

  • Son, Ki-Sang;Gal, Won-Mo;Yang, Hak-Su
    • Journal of the Korean Society of Safety
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    • v.22 no.5
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    • pp.33-40
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    • 2007
  • Standard safety management costs can not be applied to each site with same rate, it is very difficult, because it depends on the experience, work method, work kind, work progress schedule, and hazard level of each construction company. Therefore, this study is to find out hazard level of each work kinds through questionnaire and interview and investigate analyze the status which standard safety management costs have been used. Also, this study is to show reasonable rates of standard safety management costs in construction industry and to set up countermeasures against those problem after reviewing its status in korea with in Japan and Europe. This study is to investigate eleven project kinds of domestic system, first, and to investigate eleven items of apartment bldg, office. Also this study is to investigate and analyze performed costs of presently processing worker finished work so that it shows a new reasonable rate against standard safety management costs in construction industry, in order to make basical data and material to be systemized.

Study on the Evaluation Method of Electrical Isolation Property for Hydrogen Fuel Cell Vehicle in Post Crash (수소연료전지자동차의 충돌시 절연성능 평가방법에 관한 고찰)

  • Lee, Kiyeon;Gil, Hyoungjun;Kim, Dongook;Kim, Dongwoo;Kang, Daechul
    • Transactions of the Korean hydrogen and new energy society
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    • v.23 no.6
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    • pp.612-618
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    • 2012
  • In this paper, in order to prevent electric shock of high voltage system of HFCV after crash test, insulation performance measurement methods were studied. Under conditions of in-use, insulation performance tests can be divided into measurement method using the vehicle's own RESS as DC voltage source and measurement method using DC voltage from off-vehicle sources. However, these tests can not be applied after a post-crash because parts of high voltage system cover should be removed, and insulation performance can be influenced during these tests. Therefore, we proposed post-crash insulation performance test methods for preventing electric shock through problem analysis of previous post-crash insulation performance tests. Also, test equipment which can measure voltage absence and total energy was developed. We verified performance of the equipment through experiments with vehicle test.

A Study on Factors Mfecting Safety Accidents among Elderly People (노인 안전사고에 영향을 미치는 요인 조사연구)

  • Lee, Chang-Hee
    • The Korean Journal of Emergency Medical Services
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    • v.8 no.1
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    • pp.105-115
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    • 2004
  • The nation is turning into aging society, and safety accidents among elderly people are on the rise. When death roll caused by safety accidents was investigated, senior citizens who died from safety accidents outnumbered the other age groups who died for the same reason. The most common cause of death was traffic accidents, followed by suicide and a hurt from a fall, and Korea rated first among OECD member nations in death roll by traffic accidents. Aging brings a lot of physical changes to elderly people, and they are often likely to be involved in accidents such as a hurt from a fall due to degenerated sensory organs like hearing and eyesight and deteriorated motor skills. Unsafe social facilities also have them face a lot of accidents, including fracture and death, and such accidents take place even at home that is usually considered safe, or are triggered by things of daily use. As a result of comparing every age group's death roll by safety accidents, the number of senior citizens who died from safety accidents was far higher than that of the other age groups who died for the same reason in every accident field. In aging society, a sharp increase in the elderly population and ensuing safety accidents are expected to pose a serious threat to national economy, and diverse efforts should be put into tacking this problem. For instance, safety education should be provided to people in general including senior citizens on a regular basis, and more safety facilities should be prepared. Besides, safety equipment should be developed.

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Estimating Relative Risk Level of Construction Work (건설공사 상대적 위험도 산정)

  • Son, Ki-Sang;Yang, Hak-Soo;Gal, Won-Mo
    • Journal of the Korean Society of Safety
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    • v.21 no.5 s.77
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    • pp.53-59
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    • 2006
  • Standard safety management costs can not be applied to each site with same rate, it is very difficult, because it depends on the experience, work method, work kind, work progress schedule, and hazard level of each construction company. Therefore, this study is to find out hazard level of each work kinds through questionnaire and interview and investigate analyze the status which standard safety management costs have been used. Also, this study is to show reasonable rates of standard safety management costs in construction industry and to set up countermeasures against those problem after reviewing its status in korea with in Japan and Europe. The domestic system of standard safety management costs is not considered in the foreign country, while only related subjective items have been investigated and evaluated for this study. This study is to investigate eleven project kinds of domestic system, first, and to investigate eleven items of apartment bldg, office, civil work such as bridge, tunnel, dam, plant etc, secondly. Additionally, three items of gymnasium, railway, particular steel tower are investigated in this study. Also this study is to investigate and analyze performed costs of presently processing worker finished work so that it shows a new reasonable rate against standard safety management costs in construction industry, in order to make basial data and material to be systemized.

A Study on the Hazard Factor and Safety Management at Transmission Line During Live Line Works (송전선로 직접활선공법의 위험요인과 안전대책에 관한 연구)

  • Choi, Seung-Dong;Kang, Kyong-Sik
    • Journal of the Korea Safety Management & Science
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    • v.8 no.3
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    • pp.51-66
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    • 2006
  • This study was attempted to analyze risk factors and suggest accident prevention in live line works for power transmission lines to be developed and applied in Korea. Safety problem cannot but occur at development of live line works and application to the field. With respect to this, problems likely to occur in the field among works adopting methods of works including live line works for power transmission lines were investigated and analyzed through documentary survey and risk assessment method. The results are summarized as follows. A risk assessment method model was suggested. This method enables scientific and systematic development of safety control. That is, the owner may autonomously induce safety control and build risk assessment database by work process to use them as best training data for workers. Also, in the field, it may induce all workers to participate in safety program and secure safety by making workers seek for safety working method under smooth flow from looking at risk factors to accident prevention activities. It is deemed that this humble study will prevent both accident and injury likely to occur in live line works for power transmission lines.

Improving the Safety Awareness of Construction Workers (건설근로자 안전의식 향상방안)

  • Zhang, Zhen;An, Sung-Hoon
    • Journal of the Korea Institute of Building Construction
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    • v.14 no.5
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    • pp.451-457
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    • 2014
  • The construction industry has a higher mortality rate of accidents than other industries although safety is recently being more important, and it has become a serious problem that needs to be improved. To reduce the number of accidents at construction sites, improving the safety awareness of construction workers is urgent because the lack of safety awareness is one of the key reasons for construction accidents. For this reason, this study compares and analyzes the safety awareness of construction managers and construction workers. Our research shows that the safety awareness of construction workers is lower than that of construction managers, and they have a different perspective on safety management. The development plan for improving the safety awareness of construction workers based on these results is proposed, and it will potentially help reducing the frequency of accidents at building construction sites.

Development of Accident Cause Analysis Model for Construction Site (건설업 사고 발생원인 파악을 위한 사고 분석 모델 개발)

  • Lim, Won Jun;Kee, Jung Hun;Seong, Joo Hyun;Park, Jong Yil
    • Journal of the Korean Society of Safety
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    • v.34 no.1
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    • pp.45-52
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    • 2019
  • Accident analysis models were developed to improve the construction site safety and case studies was conducted. In 2016, 86% of fatality accidents occurred due to simple unsafe acts. Structure related accidents are less frequent than the non structure related causes, but the number of casualties per accident is two times higher than non structure one. In the view of risk perception, efforts should be given to reduce accidents caused by low frequency - high consequence structure related causes. In case of structure related accident, structural safety inspection and management (including quality), ground condition management / inspection technology, and provision of risk information delivery system in case of non structure related accident were proposed as a solution. In analysis of relationship between safety related stakeholder, the main problem were the lack of knowledge of controller and player, loss of control due to duplicated controls, lack of communication system of risk information, and relative position error of controller and player.

A Study on the Disaster Prevention Measures through Safety Awareness Survey for the Students living in a Dormitory (기숙사생의 안전의식 조사를 통한 재해예방 대책 연구)

  • Lee, Myeong-Gu;Choi, Sin-Hee;Kim, Joo-Mi;Choi, Yun-Young
    • The Journal of the Convergence on Culture Technology
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    • v.2 no.2
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    • pp.37-44
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    • 2016
  • This study was performed to evaluate the safety level of consciousness of college dorm life, and to suggest the problem derivation and to improve the prevention of accidents. The survey research was performed to investigate the contents of safety training for 150 people, and the effectiveness, the demands of safety were also examined. The risk factors were identified in order to assess the level of personal security awareness. The survey was performed for the knowledge of risky behaviors, such as disaster preparedness tips. The research showed that the satisfaction and effectiveness of safety training was high by investigation. Through the research, the recognition factor of the accident, which occurs by a lack of understanding for specific responses, must be enhanced using the safety training to respond adequately when disaster occurs.

A Study on the Safety Consciousness of Resident for the Environmental Factors in Apartments (공동주택 환경요인에 대한 거주자의 안전의식 조사 연구)

  • Park, Hyeon-Ku;Song, Hyuk;Go, Seong-Seok
    • Journal of the Korean Society of Safety
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    • v.20 no.4 s.72
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    • pp.106-113
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    • 2005
  • The housing is a human's basic space and the comfort and the safety are the most basic conditions. According to the flow of age for Well-Being since the 21th, the suppliers and the users of apartment are making best effort now for the embossment of green environmental quality of apartment, and outstretch their hands for marketing strategic purposes in a side of indoor and outdoor environment with distinctive elements. But these supply and use are on progress competitively with the simple distinction, it is thought that indoor and outdoor environment are must be promoted according to the survey of residents' consciousness. So this study aims to provide basic materials with residents for the promotion of comfortable dwelling environment by solving the basic safety problem and also aims to survey and analyze the residents' safety consciousness in object of physical and non-physical environmental quality of indoor and outdoor of apartment by analyzing indoor air quality pollution, the feeling of being victimize caused by air pollution and safety consciousness according to physical environment elements.