• Title/Summary/Keyword: Safety System

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A Study on the Safety Requirements Establishment through System Safety Processes (시스템 안전성평가를 통한 효율적 요건 도출방안 연구)

  • Yoo, Seung-woo;Jung, Jinpyong;Yi, Baeck-Jun
    • Journal of Aerospace System Engineering
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    • v.7 no.2
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    • pp.29-34
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    • 2013
  • Safety requirements for aircraft and system functions include minimum performance constraints for both availability and integrity of the function. These safety requirements should be determined by conducting a safety assessment. The depths and contents of aircraft system safety assessment vary depending on factors such as the complexity of the system, how critical the system is to flight safety, what volume of experience is available on the type of system and the novelty and complexity of the technologies being used. Requirements that are defined to prevent failure conditions or to provide safety related functions should be uniquely identified and traceable through the levels of development. This will ensure visibility of the safety requirements at the software and electronic hardware design level. This paper has prepared to study on promoting the efficiency of establishing hierarchical safety requirements from aircraft level function to item level through system safety processes.

Effects of Communication Company's Safety Management System on Workers' Safety Consciousness and Safety Observance Behavior

  • Byun, Kwang-Seup;Jung, JIn-Woo
    • Journal of information and communication convergence engineering
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    • v.19 no.2
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    • pp.120-129
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    • 2021
  • In this study, the effect of a telecommunication company's safety management system on workers' safety awareness and safety behavior was empirically verified. The main findings are as follows: First, among the factors of the telecommunication company's safety management system, the management supervisor's capability and level of industrial accident investigations were found to have a significant positive effect on workers' safety awareness. Second, workers' safety awareness was observed to exert a significant positive effect on their safety behavior. Third, among the factors of the telecommunication company's safety management system, the management supervisor's capability and industrial accident investigations were found to have a significant positive effect on the safety behavior of workers. Fourth, although the telecommunications safety management system factors, such as management supervisors' capability and industrial accident investigations, were found to have a positive effect on workers' safety awareness, they had no mediated effect on workers' safety behavior through safety awareness.

Safety analysis to derive safety requirement in the railway system

  • Joung, Eui-Jin;Shin, Kyung-Ho;Kim, Yong-Gyu
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.1
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    • pp.383-386
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    • 2006
  • The safety of the railway system is important because the system is a mass transit system and the results of the accident are inconceivable. The railway system is operated by train operation system such as train control system. So the train control system requires safety critical characteristics. In the European railway, ETCS (European Train Control System) project has been finished to accomplish the interoperability of each national railway signaling system. According to the interoperability degree, ETCS levels are suggested. As the highest level, ETCS level 3 suggests a radio communication. Also recently urban railway system is operated by driverless and automatic train control system. In this circumstance, more safety is required than before in the railway system. In order to accomplish the safety of a system, the requirements considering safety have to be suggested. The requirement is a set of several functions such as general function, environment, safety etc. For the safety critical system, safety function is more important than any other functions. The safety functions are deduced by safety analysis. In order to perform the safety analysis, the system hazards have to be identified and then risk analysis for each hazard should be performed. The risk is related to the frequency and the severity of each hazard. And then countermeasures for each risk have to be prepared. The summary of the countermeasures is about a kind of safety functions in a system. In this paper, the safety functions for a train control system are presented according to the above procedure.

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The Impact of the Safety Awareness & Performance by the Intelligent Image Analysis System (지능형 영상분석 시스템이 작업자 안전의식 및 행동에 미치는 영향)

  • Jang, Hyun Song
    • Journal of the Korea Safety Management & Science
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    • v.17 no.3
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    • pp.143-148
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    • 2015
  • The study examined the relationship between workers' safety awareness, safety performance and the components of the intelligent image analysis system in accordance with preventing the workers from safety hazard in dangerous working area. Based on the safety performance model, we include safety knowledge, safety motivation, safety compliance and safety participation, and we also define three additional factors of the intelligent image analysis system such as functional feature, penalty and incentive by using factor analysis. SEM(Structural Equation Modeling) analyses on the data from the total of 73 workers showed that functional feature of intelligent analysis system and incentive were positively related to safety knowledge and safety motivation. And mediation effects of the relationship were verified to safety compliance and safety participation through safety knowledge as well.

Comparative Analysis of Foreign Armed Forces' Safety Management System for the Development of the R.O.K Defense Safety Management System (국방 안전관리시스템 개선을 위한 주요 외국군 사례분석 연구)

  • An, Jae Hyun;Park, Chan Young;Park, Sang Hoon;Yoon, Hong Sik
    • Journal of the Korean Society of Safety
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    • v.36 no.2
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    • pp.68-79
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    • 2021
  • Department of Defense, Republic of Korea has put in significant efforts towards safety over the years by developing defense safety management systems, such as establishing safety management organizations and enacting laws and regulations. Therefore, the number of casualties due to military activities has been reduced dramatically. However, many errors and problems are present in the safety management system (SMS) owing to a lack of proper SMS. That brings inefficiency and discontinuity in SMS. Hence, typical phenomena such as lack of safety management professionals and reactive safety management activities have not been properly corrected. This study reviews various academic papers on the SMS and research reports of major foreign institutions to redefine the concept and components of the defense safety management system to ultimately suggest improvement in the R.O.K defense safety management system. Additionally, the safety management system of the U.S. and British forces, considered to be the leading safety management system, were analyzed and compared to R.O.K defense SMS to derive their implications.

Total Safety Management System by Owner's Lending for the Effective Prevention of Construction Accidents (효과적인 안전사고 예방을 위한 발주자 선도의 총체적 안전관리제도)

  • Hong, Sung-Ho;Lee, Seung-Hyun
    • Journal of the Korean Society of Safety
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    • v.20 no.3 s.71
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    • pp.164-173
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    • 2005
  • In this paper, the systematic problems of safety management in domestic construction industry are presented by the investigation and analysis of construction fatal injuries. In particular, it is discussed that the current construction safety management system by contractors leading is ineffective to prevent the serious accidents caused by inappropriate planning and design and to circulate the safety management cycle without interruption. A couple of ways for improving domestic construction safety management system are suggested in broad perspective. This is done by the analysis of construction safety management system of four advanced industrial countries such as the United States, the United Kingdom, Germany, and Japan and the study of a best practice. Total safety management system by owners leading is recommended to prevent construction accident effectively because this system makes all the parties join to the management system and distribute the responsibilities clearly to each party. This will drop the accident occurrence rate by dragging all the parties' cooperations and activating the total safety management system in an early stage.

Establishment of a Safety Inspection System for Public Institutions Ordered Construction Projects (건설공사 발주 공공기관의 안전점검 체계구축에 관한 연구)

  • Eung Ho Park;Sudong Lee;Kihyo Jung
    • Journal of the Korea Safety Management & Science
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    • v.25 no.3
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    • pp.55-62
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    • 2023
  • Public institutions have a responsibility to ensure the safety of their employees and the public. One way to do this is to implement a systematic safety inspection system based on risk assessments and continuous improvements. This study developed a systematic safety inspection system for public institutions that are ordered construction projects. The proposed system in this study consists of a three-step process: (1) developing safety grade evaluation tables, (2) preparing and conducting safety inspections, and (3) evaluating and improving safety management grades. The first step is to develop safety grade evaluation tables by analysis and diagnosis of the construction site's work type, disaster statistics, and related laws. The second step is to conduct safety inspections using the developed evaluation tables. The third step is to determine the safety management grade based on the results of the safety inspection, and to improve risk factors found during the safety evaluation. The proposed system was implemented in highway construction projects carried out by public institutions. The results showed that the proposed system has two major effects: (1) reducing accident-related deaths and injuries, (2) improving safety management levels by continuous evaluation and improvement. The proposed system can be utilized in construction projects ordered by public institutions to improve the level of occupational safety and health.

A Study on the Improvement of Subcontractors' Safety Management System in Construction Industries (건설업 협력회사 안전수준 향상 방안에 관한 연구)

  • Lee, Jae Yun;Oh, Tae Keun
    • Journal of the Korean Society of Safety
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    • v.32 no.2
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    • pp.78-84
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    • 2017
  • Subcontractors have an increased risk of accidents compared to large contractors. Subcontractors' safety management system is in close association with workers in construction sites. Contractors should strengthen subcontractors' roll and responsibility and provide continual support to prevent an accident. And also these supporting system should be provided to subcontractors' headquarters as well as construction site. Contractors' priority management for subcontractors safety should be transferred from the post management for disciplinary action to the preventive management to improve subcontractors participation and safety performance. Subcontractors can not establish the safety management system with just a one time supporting only. Contractors support and monitoring should be provided to subcontractors regularly and continuously to establish their self safety management system. The subcontractors safety management system improvement program(SSMSIP) suggested in this study will be a effective supporting system for subcontractors to establish and improve their safety management system. If we carry out the objective and quantitative evaluations and supporting system such as SSMSIP and provide the consequential incentive program to subcontractors, it can contribute to the accident reduction.

Integrated Safety, Quality, and Environment Information System Based on Web Environment (웹 기반 하에서의 안전, 품질, 환경 통합 정보 시스템)

  • 박재현;김형준;나승훈;서지한;김귀남
    • Proceedings of the Safety Management and Science Conference
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    • 2000.05a
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    • pp.27-32
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    • 2000
  • This study presents the design of integrated safety, quality, and environmental information system based on the internet environment. Quality management system, environmental management system, and safety management system are adapted in many manufacturing and service organization respectively but those system does not work effectively. Especially safety management system and environmental management system are very similar with format and contents. Therefore, Those system must be integrated to increase effiency.

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Analysis of Safety Assessment Methodology for Railway Signaling Systems

  • Hwang, Jong-Gyu;Jo, Hyun-Jeong;Yoon, Yong-Ki
    • International Journal of Safety
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    • v.6 no.2
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    • pp.38-42
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    • 2007
  • As railway signaling system is computerized, the significance on safety demonstration and assessment has been increased. Therefore, railway signaling system should reflect the needs for safety assessment technique. Various studies on safety assessment technique for railway signaling have been made in Europe and standardization of the requirements for safety acceptance has been initiated by IEC. In order to develop and establish the safety assessment techniques for railway signaling in Korea, we try to review safety assessment activities for signaling system via reviewing relevant case studies and consulting with experts. And also we propose the safety assessment activity/methodology for Korean railway signaling system.