• 전기학회논문지
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• 제66권3호
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• pp.533-539
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• 2017

ERTMS/ETCS Level 2 is currently planning, making contract, constructing and operating at several lines in European well-developed railway countries different from past ten years ago, and applying extensively for purpose of its intercompatibility and operational efficiency, and economic feasibility. On the other hand, ATP system correspond to ETCS Level 1, which was domestically introduced in early 2000, has introduced, operated, and planned or constructed in national railwaynetwork, but the lines, which its improvement period is come, are being occurred starting Gyeongbu Line. Therefore, we study the consideration and construction plan by stages if LTE-R Korean Radio-based Train Control System for conventional & high-speed railway under domestic development is extensively applied as the third National Railway Network Construction Plan was announced.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2008년도 정기 학술대회
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• pp.114-119
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• 2008

A refined three-dimensional finite element interaction model between the high-speed train and railway bride deck has been developed in the present study. Analytical predictions of vertical deflections for a railway bridge are compared with in-situ test results and a good agreement is achieved. Then, input variables employed in the analytical comparisons are selected as random variables for the limit state functions. followed by risk assessment. For this purpose, a linear adaptive weighted response surface method has been developed and applied. A typical railway bridge has been selected and the limit state functions are employed from UIC and Korean specifications in the comparative studies. The results reveal that Korean specifications give significantly risky reliability indices in comparison with UIC specifications. It is thus encouraged from the above that the present linear adaptive weighted response surface method can be an alternative for the fast estimation of nonlinear structural systems.

• 전기학회논문지
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• 제66권9호
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• pp.1431-1436
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• 2017

The high-speed railway of catenary system, supplies a stable electric power supply to the train by satisfying the special conditions between pantograph and trolley wire, which operates more than 250km/h mutually sliding and feeding electric lines. According to Korean Railway Standard KRS PW 0026-13 (R), the standard for the grip strength of the dropper clamp in conventional line is established, but the high-speed railway line is not yet. When the grip strength of the dropper clamp is detached from the catenary line of the high-speed railway line, various problems may occur, such as damage to the pantograph due to the collision and arcing. In this paper, it is expected to be used as a basic data for establishing the durability criteria of the high-speed railway dropper clamp by verifying the dropper clamp on the Gyeong-bu and Honam high-speed line.

• 한국철도학회논문집
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• 제19권6호
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• pp.736-743
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• 2016

고속화 및 자동화 추세에 따라 열차제어시스템(TCS: Train Control System)은 유선으로 정보를 주고받는 기술에서 무선을 이용한 제어방식으로 기술이 발전되고 있으며, 무선방식도 2세대의 GSM-R에서 4세대 통신인 LTE를 적용한 LTE-R 무선통신 기술이 적용되고 있다. 따라서 무선통신(LTE-R)을 적용한 일반(250km/h이하) 고속철도(350km/h)용 열차제어시스템(KRTCS-2: Korea Radio based Train Control System-2, 이하 KRTCS-2라 함)에 적합한 표준사양(안)을 작성하고, 표준사양(안)을 기반으로 제작한 시작품을 일반열차 및 고속열차에 설치하고, 호남 고속선(정읍~익산) 및 원주-강릉선에 시험선을 구축하여 다양한 성능시험을 통해 표준사양(안)의 신뢰성 및 안전성을 확보하고자 한다. 이후 표준사양(안)은 국가 철도규격으로 제정하여 일반(광역) 고속철도 노선에 열차제어시스템을 적용함으로써 표준사양(안)이 실용화될 수 있도록 할 예정이다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2225-2234
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• 2011

According to Railway Safety Act, Korea Transportation Safety Authority (KOTSA) has been entrusted with 'Integrated Railway Safety Audit (IRSA) and has implemented the safety audit to the Railway operation agencies such as Korea Railway (KORAIL) and the Railway 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 Railway operation and facility agencies by checking synthetically their performance of safety duties with sincerity according to the Railway Safety Act. Even though newly introduced IRSA is conducted smoothly, it is necessary to study the methodology and criteria of the state's safety audit system. The purpose of this paper is to improve the efficiency of IRSA by the comparative research between IRSA and other similar safety audit system and to establish the consecutive improvement concept of IRSA. Second purpose is to confirm the effectiveness of IRSA by the analysis of the relationship between audit results and the safety level of the rail operation agencies.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 추계학술대회 논문집
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• pp.581-582
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• 2006

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.719-728
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• 2007

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.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.2250-2257
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• 2008

This study examined the existing issues and current status of how to best approach the establishment of railroad asset of the corporation in the long run. It also explored some preventative measures for further problems. Based on the law of state property and related railroad statutes, the research referred to basic plans for railroad management of Korea Rail Network Authority, the outcome of file research, handbook of asset management, guidelines and policy of Ministry of Finance and Economy for state property management, recommendations of the Board of Audit and Inspection and fact-finding research of state property (miscellaneous properties). The findings are making a few suggestions on the service of the Korea Rail Network Authority and Korail.

• 한국철도학회논문집
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• 제10권1호
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• pp.34-38
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• 2007

Rail network authority have to do the safety ensuring activities including the maintenance of railway facilities, integrated performance verification between the facilities and related lolling stock and safety inspections, etc. When constructing the new lines or upgrading the conventional lines, full system commissioning should be done before the revenue service with railway operator. To develop the optimal full system commissioning model, the status of domestic and foreign railway facilities and railway accidents are analysed and the problems of the safety management are derived. As one of countermeasures for the problems, the procedures and criteria for the full system commissioning are developed.

• 한국철도학회논문집
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• 제20권3호
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• pp.382-388
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• 2017

지구온난화로 인한 범세계적 위기가 초래됨에 따라 1997년 선진국을 중심으로 교토의정서가 체결되었고 2015년 개발도상국까지 공동의무를 부과하는 파리협정이 체결되어 이를 계기로 온실가스 감축 규제 및 국가적 노력이 본격화 되고 있다. 본 연구에서는 한국철도시설공단에서 효율적인 철도건설을 위해 전통적인 건설사업관리 업무를 전산화함에 따라 저감되는 탄소배출량을 분석하였다. 이를 위해 '방문감소에 의한 탄소발생 저감'과 '종이감소에 의한 탄소발생 저감'효과를 측정하는 산출모델을 제시하고자 한다. 수립된 산출모델을 활용하여 건설사업관리시스템 도입에 따른 탄소저감량을 산출하고 이를 경제적 비용으로 환산한다. 본 연구에서 제시한 산출모델 및 산출방식은 정보화사업 추진으로 인한 탄소저감 효과를 분석하는데 도움이 될 수 있을 것으로 기대된다.