• Title/Summary/Keyword: Safety guarantee

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Performance Evaluation Procedure for Advanced Emergency Braking System (자동비상제동 시스템의 안전성능평가)

  • Kim, Taewoo;Yi, Kyongsu;Choi, In Seong;Min, Kyong Chan
    • Journal of Auto-vehicle Safety Association
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    • v.7 no.2
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    • pp.25-31
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    • 2015
  • This paper presents a performance evaluation procedure for advanced emergency braking (AEB) system. To guarantee the performance of AEB system, AEB test scenario should contains various driving conditions which can be occurred in real driving condition. Also, performances of each elements of AEB system, such as sensor, decision, human machine interface (HMI) and control, should be evaluated in various situations. For this, driving conditions, road types, environment, and elements of AEB system were introduced. Test scenario has been designed to represent the real driving condition and to evaluate the safety performance of AEB system in various situations. To confirm that the proposed AEB test scenario is realistic and physically meaningful, vehicle test have been conducted in two cases of proposed AEB test scenario: subject vehicle cut-out scenario and narrow street turn left scenario.

Stress Monitoring System for Buried Gas Pipeline in Poor Ground (연약지반 배관응력 모니터링 시스템 개발 및 적용)

  • Hong, Seong-Kyeong;Kim, Joon-Ho;Jeong, Sek-Young
    • Journal of the Korean Society of Safety
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    • v.21 no.1 s.73
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    • pp.41-47
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    • 2006
  • This paper introduces stress monitoring system for buried gas pipeline in poor ground. During the six months of improvement construction of poor ground, maximum settlement of gas pipeline is about 40 cm. This value represents relative small compared to the initial settlement estimation of ground improvement construction plan, 90 cm. Also, this paper includes the result of finite element analysis of gas pipeline to confirm safety of pipelines in poor ground. The stress monitoring system for gas pipeline was developed to guarantee the safety of buried gas pipeline in poor ground. Eventually, the ground improvement workings are ended safely and it is proved that the pipeline has no safety problem.

A Study on the Introduction of IMO Casualty Investigation Code and Marine Safety Investigation System in Korea (IMO 해양사고조사코드의 도입과 해양사고조사제도에 관한 고찰)

  • Lim, Chae-Hyun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.16 no.1
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    • pp.57-63
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    • 2010
  • The marine safety investigation inquires and concludes the facts and causes of the marine casualties and incidents with the objective of preventing similar roses in the future. Thus, IMO and most states adopt and revise marine safety related conventions and national laws based on the results of marine safety investigation. In particular, IMO recently adopts mandatory IMO Casualty Investigation Code to identify the precise cause of rose with states' cooperation, to report the result of investigation, and to establish new international safety standard helping prevention of similar cases based on the report. The Judgement of the Korean Maritime Safety Tribunal system based on the 'Act on the investigation of and inquiry into marine accidents' is used for the purpose of marine safety investigation in Korea to prove cause of marine accident and to improve marine safety. Therefore, this study examines the Code and compares the Code with the Act to reflect the contents of provisions in the Code into the Act. The study would also be the basic references in relation to revising of marine safety investigation system in Korea Specially, the contents in relation to the independence of investigation authority and mandatory counselling system, and guarantee of seafarers human rights to ensure fairness of investigation would be included.

A Study on the Safety and Improvement of Small Theatres in Korea (소규모 공연장 안전실태 및 개선방안에 대한 연구)

  • Park, Yong Gyu;Kim, Dong Kyun;Park, Jin Kyu;Kim, Kyung Hoon
    • Journal of the Korean Society of Safety
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    • v.29 no.6
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    • pp.22-27
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    • 2014
  • The market of performance arts industry such as concert, musical and opera etc is now expanding in Korea. However, the inadequate safety management in theatres often causes some accidents. The guarantee of safety in theatres is very important since the accidents in theaters can lead to many casualties and serious property damages. In particular, the small theatres which have no obligation of safety inspection by law are very vulnerable to safety mattes. This study has done the research into the improvement of safety in small theaters through the inspection and analysis of their safety status. For the purpose, this study has inspected and analyzed the safety status of small theaters over 120 in the field of theater management and operation, fire protection, electrical facilities, ceiling structure and etc. Moreover, this study had investigated the law and technical standards related to theatre safety. This study shows that the essentials to make sure of the safety in small theaters are (1) the education to improve the sense of security of people who work in theaters (2) the training to strengthen the operating skills of the facilities in theaters (3) the cooperation and support of the related organization such as technical research center, central and local government.

The Analysis of the Priority and Progress Direction of Electrical Safety Technology using Analytic Hierarchy Process (계층분석과정(AHP)을 이용한 전기안전기술 우선순위 및 추진방향 분석연구)

  • Kim, Han-Sang;Yi, Geon-Ho;Kim, Dong-Woo;Jeon, Jeong-Chay;Lee, Ki-Yeon;Kim, Young-Seog;Jung, Jin-Soo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.62 no.12
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    • pp.1784-1791
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    • 2013
  • Electrical safety technique is a disaster prevention technology to protect the life and property of the people and it has high correlation with all electricity industry. According to the latest statistics, loss of human life and property damage due to electrical fire have increased from 2011. Therefore, technological development for guarantee safety of electrical facilities for customer will become more important. In this paper, we drew priority and weigh for the electrical safety technology using analytic hierarchy process and present progress direction of each technology through Risk-Return assessment. We expect development of the research and development policies of government about electrical safety technology in a higher state and think that policymakers and experts will be more interested in these fields based on this paper.

A Study on the Improvement of Safety Certification Marks Displayed on the Surface of Temporary Equipments at Construction Site (II) : Marking Method and Location (건설현장에 사용되는 가설기자재의 안전인증표시 개선방안 연구(II) : 표시방법 및 표시위치)

  • Jeong, Seong-Choon;Bong, Jin Kyun;Won, Jeong Hun
    • Journal of the Korean Society of Safety
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    • v.33 no.1
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    • pp.95-102
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    • 2018
  • This study investigated the improvement of safety certification marking method and location marked on temporary equipments in order to guarantee the quality and safety of temporary equipments. The survey was performed for the stakeholder (manufacturers, lessors, and users) to find out the effective way that all stakeholder can agree each other. The main reason which users checked the safety certification making is that the mandatory safety certification marking can prevent the usage of poor and illegal temporary equipments. For the marking method, all stakeholder agreed that a depressed engraving method was an effective and usable displaying method. The opinions about the position of safety certification marking among the users, lessors, and manufacturers did not come into the agreement. The manufacturers preferred the marking position in which the engraving process is easy, but users wanted the conspicuous place such as vertical member. However, it is necessary to continuously study ways to adopt the position preferred by the users.

Quantitative Risk Reduction Model according to SIL allocated by Risk Graph for Railway Platform Door System (Risk Graph에 의해 할당된 SIL에 따른 철도 승강장 도어 시스템의 정량적 Risk 저감 모델)

  • Song, Ki Tae;Lee, Sung Ill
    • Journal of the Korean Society of Safety
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    • v.31 no.5
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    • pp.141-148
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    • 2016
  • There exists required safety integrity level (SIL) to assure safety in accordance with international standards for every electrical / electronics / control equipment or systems with safety related functions. The SIL is allocated from lowest level (level 0) to highest level (level 4). In order to guarantee certain safety level that is internationally acceptable, application of methodology for SIL allocation and demonstration based on related international standards is required. Especially, in case of the SIL allocation method without determining of quantitative tolerable risk, the additional review is needed to check whether it is suitable or not is required. In this study, the quantitative risk reduction model based on the safety integrity allocation results of railway platform screen door system using Risk Graph method has been examined in order to review the suitability of quantitative risk reduction according to allocated safety integrity level.

Secure Execution Assurance Mechanism of Mobile Agent from Truncation Attack in Free-Roaming Environments (Free-Roaming 실행 환경에서 절단공격으로부터 이동에이전트의 안전한 실행 보장 기법)

  • Jung, Chang-Ryul;Lee, Sung-Keun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.1
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    • pp.97-108
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    • 2010
  • The data security of free-roaming mobile agent is a problem which hasn't been resolved to the mobility and inter-host mapping. totally, especially in theaspect of keeping away truncation attacks. Therefore, when the agent is utilized for user oriented applied technique, the secure execution guarantee of agent is essential. In this paper, it guarantees safe execution from security threats generated by malicious host during the agent's execution. And the secure execution guarantee mechanism of agent is proposed from favorable host is maliciously abused by attacker. Thus, the execution trace protocol mechanism proposed as secure mobile agents execution guarantee. As security analysis of the safety analysis.

Effect of Mobile Crane Load on Excavated Slope Stability (이동식 크레인 하중이 굴착사면 안정성에 미치는 영향 분석)

  • Kim, Jeong Kon;Na, Ye Ji;Won, Jeong-Hun
    • Journal of the Korean Society of Safety
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    • v.36 no.5
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    • pp.18-26
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    • 2021
  • The effect of heavy construction equipment on the excavated slope is investigated by slope stability analysis. A mobile crane with 500 kN capacity is applied as a working load to the background surface of the excavated slope, in both sandy soil and clay, designed to guarantee the safety of slope stability. Major parameters such as the distance between the edge of the slope and the mobile crane, groundwater level, and ground plate size of the mobile crane are considered. Only 23.8% and 14.3% of the analysis models with sandy soil and clay excavated slope, respectively, satisfied the slope stability. By changing the slope of the sandy soil from 1:1.0 to 1:1.2, the number of analysis models securing slope stability increased from 23.8% to 40.5%. For the clay excavated slope, the analysis models securing slope stability increased from 14.3% to 42.9% by changing slope inclination from 1:0.8 to 1:1.2. In addition, it is found that the increase in the size of the ground plate of the mobile crane increases the analysis models that secure slope stability. Therefore, it is an effective way to relax the excavated slope's inclination angle and simultaneously increase the ground plate size to guarantee stability.

A Study for the Improvement on Use Transparency of the Occupational Safety and Health Management Cost in Construction (건설업 산업안전보건관리비 사용 투명성 강화 방안 연구)

  • Lee, Sun Yong;Jeong, Seong-Choon;Oh, Se Wook
    • Journal of the Korean Society of Safety
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    • v.35 no.1
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    • pp.34-44
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    • 2020
  • The purpose of this study is to suggest ways to improve the transparency of occupational safety and health management cost (OSHMC) in order to create a safe working environment that can guarantee the health of construction workers. It was performed in the following procedures and methods. (1) collecting and analyzing resources related to the OSHMC in construction, (2) gathering stakeholder opinions for interviewing actual conditions, (3) deriving the improvement plans based on survey results and (4) suggesting direction for improvement of related laws based on the results of the research. As a result of this study, the following ways were found to be effective for enhancing transparency of the OSHMC in construction. (1) disclosure of usage details in sites, (2) Expansion of the standard for the OSHMC in construction, (3) Increase in fines for false use, (4) Establishment of the plan to improve the OSHMC ratio of small-scale construction sites, (5) Strengthen the role of supervisory and support organizations such as the Ministry of Employment and Labor and the Korea Occupational Safety & Health Agency. The result of this study is expected to be used as a basic data for future improvement of the occupational safety and health acts in Korea.