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TOC Thinking Process를 활용한 철도종합안전심사 안정화방안 연구
오인택(Oh In Tack),장성용(Jang Seong Yong) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
To cope with the change of railway safety environment and to prevent the catastrophic accident, the railway safety management system was established through the legislation of railway safety rules. And to audit and evaluate the accomplishment of railway safety rules by the railway operators, the Integrated Railway Safety Audit System(IRSAS) has been conducting. This study find out the strategy to stabilize the IRSAS by applying Theory of Constraints(TOC) Thinking Process. For meeting the IRSAS"s goal of effective levelling up of railway safety, the two necessary conditions, 1)the secure of substantial safety through the IRSAS and 2)the execution of efficient IRSAS, should be fulfilled. Estimated undesirable effects(UDEs) from the IRSAS were identified, and 3 of them were selected for creating the requisite conflict clouds. Entities from these conflict clouds were synthesized into a core conflict cloud that foamed the base of Current Reality Tree. The strategic direction for change extracted from the conflict cloud is the reinforcement of IRSAS preparation system including the level up of operator"s self audit, the deepening of preliminary survey, the establishment of complementing system of audit check list and the build up of auditor"s specialization. These injection were logically validated via a Future Reality Tree and expected to be confirmed by further progressing of IRSAS.
오인택(Oh In Tack),강동수(Kang Dong Soo),박선영(Park Sun Yung),이창희(Lee Chang Hee) 한국철도학회 2015 한국철도학회 학술발표대회논문집 Vol.2015 No.10
본 연구는 전국 13 개 도시철도 운영기관의 운영서비스에 대한 도시철도 이용자 만족도를 분석하고, 이를 바탕으로 도시철도 운영현황 파악 및 운영 서비스 개선방안을 도출하고자 하였다. 만족도분석을 위한 구조방정식 분석 결과, 이용자 만족도에 미치는 영향은 쾌적환경 서비스와 이용환경 서비스가 높은 것으로 나타났고, 운영서비스와 정보서비스는 상대적으로 적은 영향을 미치는 것으로 나타났다. 또한, IPA 분석결과, 배차간격과 환기상태에 대한 서비스 품질이 최우선적으로 개선되어야 할 것으로 나타났다. 본 연구의 결과를 통해 향후 도시철도 서비스 만족도 제고를 위한 기초자료로 활용될 수 있을 것이라 판단된다. This study looked into urban railway corporation user satisfaction with operation services of these corporations of 13 urban railway systems in Korea both to improve understanding on current status of urban railway corporation and to offer ideas on how to enhance the operation services. In order to analyze effects on user satisfaction, the study designed a structural equation model and proceeded with the analysis using IPA that would evaluate user perception and satisfaction. The findings of the structural equation analysis reported that pleasant environment service and use environment service significantly influence user satisfaction but that the satisfaction is relatively less affected by operation service and information service. In addition, based on the results of IPA analysis, the study confirmed that the service quality of arrival intervals as well as ventilation should improve as the greatest priority
오인택(Oh In-Tack),이종석(Lee Jong Seock) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
Recently the assurance of railroad safety is very important issue in KOREA because there are lots of changes in the railroad industries. The Railway Safety Act was established in order to cope with these changes effectively and prevent the railroad transportation accidents. According to this law, Korea Transportation Safety Authority (KOTSA) has been entrusted with "Integrated Railroad Safety Audit (IRSA)" and has implemented the safety audit to the railroad operation agencies such as Korea Railroad (KORAIL) and the railroad facility management organization such as the Korea Rail Network Authority (KR Network). The target of IRSA is to establish the effective rail safety management system and to raise the safety level of the railroad operation and facility agencies by checking synthetically their performance of safety duties with sincerity according to the Railway Safety Act. The purpose of this paper is to improve the efficiency of IRSA by the comparative research between IRSA and other similar safety audit system. To study the efficiency of IRSA, we investigated the rail safety audit systems of EU system specially France, England where the big changes have happened for the rail operation concepts and Japan where government entity control the railroad safety. The international standards of Occupational Health & Safety Assessment Series (OHSAS 18001), Quality Management System (ISO 9001) and Guidelines for Quality and/or Environmental Management Systems Auditing (ISO 19011) are investigated.
오인택(Oh In-Tack),팽정광(Paeng Jung-Goang),장성용(Jang Seong-Yong) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper defines the Safety Management System(SMS) based on the rail safety act and surveys the status of the English rail SMS and International Civil Aviation Organization (ICAO) SMS and OHSAS18001 SMS. Through the investigation of establishment and implementation status of domestic rail operators" SMS, the improvement directions of the current rail SMS are developed. First, to establish the continual improvement system for SMS, the guide which describe detailed continual improvement method for each steps of SMS including management review by CEO shall be established and implemented. Second, to settle the SMS based on the risk management, it is necessary to endeavor for converting the rail operators mind and to establish the supply system of operating model and basic data and to define the requirement precisely and to include in the related guide for the risk management.
박민규(Min-Kyu Park),최양규(Yang-Kyu Choi),우경갑(Gyung-Kap Woo),이종석(Jong-seock Lee),오인택(In-Tack Oh),유연춘(Yeon-Chun Yuu) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.11
지금까지 정부를 비롯하여 철도운영기관에서는 휴먼에러 예방을 위해 많은 비용과 노력을 투자하고 있다. 특히 최근의 대구역 KTX 추돌사고 등은 대표적인 휴먼에러에 의한 사고로 인적, 물적 피해를 유발하였다. 이러한 많은 노력에도 불구하고 아직도 철도 현장에서는 휴먼에러에 기인한 사고가 지속적으로 발생하는 것이 현실임을 생각할 때, 우리의 휴먼에러 예방을 위한 철도안전연구 및 사업 등이 방향성을 원점에서 다시 한번 생각해 볼 때이다. 따라서 본 논문에서는 제4회 국제휴먼팩터학회(The 4<SUP>th</SUP> International Rail Human Fact Conference)에 참석하여 유럽등 철도 선진국들의 휴먼에러 예방 연구 동향 분석 결과를 중심으로 작성하였다. It has invested a lot of money and efforts to prevent human error in railway operation fields, including the latest KTX conflict accident in Daegu station. Despite a lot of efforts, railway accident due to human error continues to occur in the railway operations. Now our railway safety researches and projects for the prevention of human error have required appropriateness and research direction. In this paper, we have analysis the published papers at the 4th Rail Human Factors Conference in London.
철도종합안전심사제도 발전을 위한 국가 항공안전감독체계 고찰
김만웅(Kim Mhan Woong),오인택(Oh In-Tack),신정범(Shin Jeong Beom),이종석(Lee Jong Seock) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Recently the assurance of railroad safety is very important issue in KOREA because there are lots of changes in the railroad industries. The Railway Safety Act was established in order to cope with these changes effectively and prevent the railroad transportation accidents. According to this law, Korea Transportation Safety Authority (KOTSA) has been entrusted with "Integrated Railroad Safety Audit (IRSA)". Even though newly introduced IRSA is conducted smoothly, it is necessary to study the methodology and criteria of the state"s safety audit system in other fields to improve the efficiency. In ICAO (International Civil Aviation Organization) Safety Management Manual, a state"s safety programme embraces those regulations and directives for the conduct of safe operations from the perspective of aircraft operators and those providing air traffic services(ATS), aerodromes and aircraft maintenance. The safety programme may include provisions for such diverse activities as incident reporting, safety investigations, safety audits and safety promotion. To implement such safety activities in an integrated manner requires a coherent SMS(Safety Management System). In this paper, to improve the efficiency of IRSA, we investigated the ICAO"s the State"s Aviation Safety Audit Systems and ICAO Safety Management Manual. And through the result of investigation, we proposed the improvement concept of IRSA.