• Title/Summary/Keyword: Near accident

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Study for Real-World Accident Database and Occupant Behavior Analysis in Far-Side Collisions (Far-Side 실사고 분석과 승객거동해석 연구)

  • Jaeho, Shin;Chang Min, Baek
    • Journal of Auto-vehicle Safety Association
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    • v.14 no.4
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    • pp.77-83
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    • 2022
  • Occupant behaviors and body contact with vehicle interior parts are main injury mechanism in far-side collisions. In vehicle side impact accident where the crash accident occurs on the opposite side of the vehicle from the a particular occupant, it is exposed in terms of relatively larger lateral motion to interact with the opposite side of the vehicle structure. The challenge of minimizing motions of upper body and injury risk according to a direct contact is a primary occupant protection research. This study has performed a data analysis of real-world accident database extracted from the 2016~2020 CISS database and a parametric investigation of impact angles and occupant kinematics in far-side lateral and oblique impact simulations. A detailed data analysis was conducted to reveal the relationship among the accident and injury data. Database analysis and computational far-side impact results proposed the fundamental vehicle design for safety improvement in far-side collisions.

An Ergonomic Design of Brake and Accelerator Pedal Placement for Korean Driver (자동차 브레이크 페달 배치의 인간공학적 설계)

  • 김유창
    • Journal of the Korean Society of Safety
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    • v.10 no.3
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    • pp.106-109
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    • 1995
  • Optimum relocation of the brake relative to the accelerator can reduce stopping diatance and may mean the difference between an accident and a near-accident. A driving simulator was used to examine effiency of brake time. Brake time was measured for 30 participants in six conditions. Brake times were shown to improve as a result of moving the brake pedal from its typical heights above the accelerator to positions below the accelerator.

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A Study on the Actual Status of Accident and Measure of Water Safety (수상 안전사고 실태와 안전대책에 관한 조사 연구 - 1998년~2000년 전국 익수 사고자를 중심으로 -)

  • Kim, Kab-Sun;Lee, Young-Hyun
    • The Korean Journal of Emergency Medical Services
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    • v.5 no.1
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    • pp.165-175
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    • 2001
  • The purpose of this study is to investigate the actual status of occurrence of near-drowning accident by regions, sex, causes, places, months and days through Bureau of Statistics for 3 years from 1998 to 2000. 1. As the results of the drowned persons for 3 years from 1998 to 2000, the total number of them were 5,058 persons and 1,686 persons the yearly mean experienced near-drowning accidents. In the actual status of drowned persons by regions, 255 persons(15.1%) of Kyung-Ki regions are highest, 27 persons(1.62%) of Che-Ju regions are lowest. 2. In the actual status of drowned persons by sex, the yearly mean 1324 male persons(78.58%) and 362 female persons(21.42%) of 1,686 persons the yearly mean are drowned and the number of male drowned persons is 3.7 times higher than that of female. 3. In the actual status of drowned persons by age, among 1,686 drowned persons the yearly mean, 467 persons between fifteen and nineteen are drowned(9.23%). 4. In the actual status of drowned persons by causes, the major causes due to the poor swimming skills are 43.4%. 5. In the actual status of drowned persons by places, the major places are rivers and riversides(50.0%). 6. In the actual status of drowned persons by months, among 1,686 drowned persons the yearly mean, 319.33 persons(18.94%) on the July and 403.66 persons(23.94%) on the August had the highest the drowning accident. It is one of major cause of seasonal accidental death especially in summer. 7. In the actual status of drowned persons by day of the week, among 1,686 drowned persons the yearly mean, most of near-drowning accidents are happened on weekend(56.62%).

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Comparative Analysis of Terminology and Classification Related to Risk Management of Radiotherapy

  • Oh, Yoonjin;Kim, Dong Wook;Shin, Dong Oh;Koo, Jihye;Lee, Soon Sung;Choi, Sang Hyoun;Ahn, Sohyun;Park, Dong-wook
    • Progress in Medical Physics
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    • v.27 no.3
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    • pp.131-138
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    • 2016
  • We analyzed the terminology and classification related to the risk management of radiation treatment overseas to establish the terminology and classification system for Korea. This study investigated the terminology and classification for radiotherapy risk management through overseas research materials from related organizations and associations, including the IAEA, WHO, British group, EC, and AAPM. Overseas risk management commonly uses the terms "near miss", "incident", and "adverse event", classified according to the degree of severity. However, several organizations have ambiguous terminologies. They use the term "near miss" for events such as a near event, close call, and good catch; the term "incident" for an event; and the term "adverse event" for the likes of an accident and an event. In addition, different organizations use different classifications: a "near miss" is generally classified as "incident" in most cases but not classified as such in BIR et al. Confusion might also be caused by the disunity of the terminology and classification, and by the ambiguity of definitions. Patient safety management of medical institutions in Korea uses the terms "near miss", "adverse event", and "sentinel event", which it classifies into eight levels according to the severity of risk to the patient. Therefore, the terminology and classification for radiotherapy risk management based on the patient safety management of medical institutions in Korea will help in improving the safety and quality of radiotherapy.

A Proposal of Bridge Design Guideline by Analysis of Marine Accident Parameters occurred at Bridges Crossing Navigable Waterways (항만횡단 해상교량의 해양사고 관련 인자 분석을 통한 교량설계안 제안)

  • Park, Young-Soo;Lee, Yun-Sok;Park, Jin-Soo;Cho, Ik-Soon;Lee, Un
    • Journal of Navigation and Port Research
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    • v.32 no.10
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    • pp.743-750
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    • 2008
  • Recently Bridges crossing waterway are constructed in navigable waterway, so marine accidents near bridges navigable waterway often occurred bemuse that has affect dangerous element for. This paper analysed the necessary environmental factors to navigate safely near bridges and how to set up the environmental factors. Marine accidents elements occurred near bridges relate to span of bridge, size of navigating ship, length of straight way and traffic volume except mistake of mariners. As results of marine accident parameter analysis, Span of bridge is necessary more than 300m at least based on marine accident's analysis, and in case of more than ship's Length 150m, span of bridge is necessary more than 500m, $3{\sim}4L$(L; Ship's Length). Length of straight way before bridge is necessary more than 8L to minimize the marine accident.

Design and implementation of a GIS-based accident management system using tracking technique

  • Niaraki Abolghasem Sadeghi;Kim Kye-Hyun
    • Journal of Korea Spatial Information System Society
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    • v.8 no.2 s.17
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    • pp.1-11
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    • 2006
  • This paper addresses a GIS (Geographic Information System) based system in order to reduce the rate of public transportation accidents occurring in Iranian roads network. Over the years, the road accidents are a major issue throughout the world. Today, particular consideration is given to those technologies which can lead to diminish on the number of critical incidents. One of the main factors resulting in accidents and fatalities rates growth is the speed violation of buses in Iranian road network. The conventional speed controlling approach in Iran based on the Tachograph which records vehicle's speed, time, and stoppage in the mechanical processing has many problems. Hence, this research is intended to design and implement a GIS-based system to manage road accident of Bus transportation system using offline tracking system. This was accomplished using a GIS-based technique that encompasses three steps. The first step is developing a GIS-based accident system. The second step includes designing and applying a tracking system inside 90 buses for recording Bus information for speed controlling. Lastly, by using mentioned system in police center, the illegal drivers' punishment would be considered properly. Overall, this system has been successfully applied in this work. Therefore, the police and transportation office are able to control and make policy to diminish the number of accident. It is anticipated that online tracking system through the Web GIS would be utilized In this system in the near future.

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Accident Analysis of Second Daegu Subway Line During its Construction Period (대구지하철 2호선 건설공사 중 발생한 사고분석)

  • Lee, Yong-Tae;Shin, Sung-Heon;Son, Byung-Chang
    • Journal of the Korean Society of Safety
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    • v.20 no.4 s.72
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    • pp.138-147
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    • 2005
  • The accidents which occurred between during february of 1997 to December of 2004 at the 2nd Daegu subway construction site have been classified. The accident types of injuries include accidental falls, falling objects which consist 53.4% of all accidents. This result is higher than the same types of accidents occurring at construction sites which are 46.3%. It was found that the 3.4 times more accidents are caused from safety measures and working methods than problems caused by lack of supervision. 78.0% of the accidents occurred at stations and at the ventilation area. 31.9% of the accidents occurred when the operation was near completion($81.0%{\sim}100.0%$) which means there was pressure to complete the operation to meet the set due date. In the case of 50.0% of the accidents were caused by workers with less than two month work experience. And lumbago is 6.9%, especially lumbago didn't showed before. Maybe accident should increase if not reduce a possibility of danger. In this study a literature search has been conducted for the cause of these accident types and respective suggestions are provided.

Radiation Distribution Around Fukushima Daiichi Nuclear Power Station Decade After the Accident

  • Yukihisa Sanada;Miyuki Sasaki;Hiroshi Kurikami;Fumiya Nagao;Satoshi Mikami
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.21 no.1
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    • pp.95-114
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    • 2023
  • During the decades after the Fukushima Daiichi Nuclear Power Station (FDNPS) accident, ambient dose rates have markedly decreased when compared to those at the early state of the accident. Government projects have been continuously conducted by surveying the ambient dose rate and radiocesium distributions. Airborne surveys using crewed helicopters and unmanned aerial vehicles (UAVs) are the best methods for obtaining an overall picture of the distribution. However, ground-based surveys are required for accurate measurements near the population. The differences between these methods include the knowledge of the post depositional behavior of radionuclides in land use. The survey results form the basis for policy decisions such as lifting evacuation zones, decontamination, and other countermeasures. These surveys contain crucial findings regarding post-accident responses. This paper reviews the survey methods of government projects and current situation around the FDNPS. The visualization methods and databases of ambient dose rates are also reviewed to provide information to the population.

Prevention through Design (PtD) of integrating accident precursors in BIM

  • Chang, Soowon;Oh, Heung Jin;Lee, JeeHee
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.94-102
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    • 2022
  • Construction workers are engaged in many activities that may expose them to serious hazards, such as falling, unguarded machinery, or being struck by heavy construction equipment. Despite extensive research in building information modeling (BIM) for safety management, current approaches, detecting safety issues after design completion, may limit the opportunities to prevent predictable and potential accidents when decisions of building materials and systems are made. In this respect, this research proposes a proactive approach to detecting safety issues from the early design phase. This research aims to explore accident precursors and integrate them into BIM for tracking safety hazards during the design development process. Accident precursors can be identified from construction incident reports published by OSHA using a text mining technique. Through BIM-integrated accident precursors, construction safety hazards can be identified during the design phase. The results will contribute to supporting a successful transition from the design stage to the construction stage that considers a safe construction workplace. This will advance the body of knowledge about construction safety management by elucidating a hypothesis that safety hazards can be detected during the design phase involving decisions about materials, building elements, and equipment. In addition, the proactive approach will help the Architecture, Engineering and Construction (AEC) industry eliminate occupational safety hazards before near-miss situations appear on construction sites.

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A Study on Installation of Carbon Monoxide Detector in a Building (건축물내 일산화탄소 경보기 설치에 관한 연구)

  • Kang, Seung-Kyu;Choi, Kyung-Suhk;Oh, Jeong-Seok
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 2008.04a
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    • pp.217-222
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    • 2008
  • In the last five years, 45 people died and 104 were wounded because of carbon monoxide poisoning accident. CO poisoning accident is higher than any other gas accident in the rate of deaths/incidents. Most of these CO poisoning accidents were caused by defective exhaust tube in the old gas boiler and multi-use facility. In this study, the spread of CO gas released from leakage hole of exhaust tube was analyzed by concentration measuring test. CO gas leaked form exhaust tube in a building was highest concentrated near the ceiling. Through these experiments, the reasonable installation location of CO alarm was made certain and suggested.

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