• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1858-1863
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• 2007

Railway systems are one of the best mass transit systems and many people have prevented incidents/accidents and reduced fatalities remarkably. Especially we have tried analyzing and finding the measures to prevent catastrophic accidents like train collision, derailment and fire because of their severities. It is important to assess the safety performances of railway systems like crash-worthiness analysis, body, derailment affecting factor analysis and so on for reducing and finding out the reasonable causes of disastrous accidents. In this paper the refined top-level system requirements to build-up national infra for assessing railway safety performance and the procedures and methodology for reviewing, verifying and validating infra requirements are explained. Basically the authors have used system engineering processes to analyze and verify the requirements and installation procedures and have tried maximizing the practicality of the various safety assessment systems.

• 전기학회논문지
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• 제61권11호
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• pp.1737-1742
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• 2012

The scott transformer is used to supply single-phase power to the AC railway system. Since the scott transformer is a passive facility, it cannot regulate load-side voltage according to load change. Meanwhile, the Voltage Source Converter (VSC) is able to convert the voltage and control active and reactive power. In this paper, the feasibility of a AC railway system based on Back-to-Back (BTB) VSC which is composed of a rectifier, a DC-DC converter, a inverter, has been proposed. A three-phase to single-phase BTB VSC is modeled. The proposed AC railway system based on BTB VSC is tested on Matlab/Simulink.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.2069-2075
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• 2010

The broadcasting system for the customer safety and conveniency is one of the important convenience facilities taking charge of customer guidance, emergency situation broadcasts for the people waiting at the platform, waiting lounge and train approaching broadcasts. To maintain this broadcasting facility local management control system(LMC) is needed. LMC observes operation status of the facility components which is set up at station and the observation results are confirmed through out remote management PC installed in the jurisdiction branch office. The staff only observes and confirms the errors of the electrical power source at broadcasting facility components accordingly the real mechanical troubles are detected by on-the-spot survey. this paper deals with existing broadcasting system only acting as a simple observation function and the research of LMC function extension which controls, monitors and tests broadcasting facility.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.1725-1730
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• 2004

The railroad station building is a public facility that many people use. The disabled persons cannot move as freely as the ordinary persons do, so the facility shall be considered on this matter. We reviewed on the features of the retarded, visually handicapped and mentally retarded persons upon moving, and calculated the minimum space required in their move, access and use of the reachable space, and we also analyzed the design factors so that the prior guidance can be considered for the visually handicapped such as installation of guidance facility, change of finishing material and Braille points block handrail to avoid obstacles for the use of senses of touch, hearing and remained eyesight of the visually handicapped. In addition, we also analyzed the requests of general design totally to analyze and arrange the design factors with the thought that the facility for the handicapped shall be useful for the ordinary people as well as the handicapped.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1816-1824
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• 2011

Recently, with traffic SOC investment policy changing from road-centered to railway-centered according to environment-friendly and sustainable development, issues regarding overlapping and overinvestment of traffic facility have been raised. Regarding investment of various traffic facilities of which departure and destination are similar to each other, academia, civic organizations, government, etc. are recognizing problems including overlapping investment of budget, environmental destruction, etc., but not suggesting definite solutions. Objective transportation network analysis is required because various positive effects including solutions of delay/congestion may occur due to provision of alternative way and distribution of the amount of traffic when accidents occur, as well as negative effects suggested by some of civic organizations in various transportation facility investment of similar departure and destination. Hereupon, this study tries to suggest a tool that can objectively evaluate interrelations of transportation network by applying multi-criteria analysis including economic feasibility regarding analysis of interconnections between and within means of transportation.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.243-248
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• 2008

Seoul subway is an safety, quick, and clean public transportation to secure citizens safety. One of the most important elements of train is optimizing railroad function and need to conform railroad inspection for function maintenance. Railroad is the most biggest part of the railroad facility and it is a structure which requires sustainable maintenance. The purpose of study is to improve domestic metropolitan railroad facility inspection method and period. For this, we refer documents about present roving method, roving members and period of railroad roving. In addition, analyzed problems of railroad roving investigation method and period by examining the type and standards of railroad investigation and interviewing experts. By this, we analyzed improving plan and expectations of railroad maintenance and repair operation.

• 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.

• 대한토목학회논문집
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• 제43권4호
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• pp.525-533
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• 2023

산지가 많은 부산시의 지형적 특성상 가용토지가 부족한 상황에서 경부선 철도까지 도심을 가로지르고 있어 생활권의 단절과 도심발전을 저해하고 있다. 이에 토지 확보를 위하여 입체개발의 필요성이 제기되고 있으며, 최근에는 경부선 철도의 지하화로 양분화 된 도시를 연결하고 토지를 효율적으로 사용할 수 있도록 하는데 관심이 증가하고 있다. 본 연구에서는 토지의 입체개발의 사례를 통해 개발유형을 분석하고, 부산시내 경부선 철도의 지하화 사업 시 메인이 되는 4개 권역(사상역, 구포역, 가야역, 부산진역)의 입체개발로 발생하는 가용토지에 효과적인 활용을 위한 시민인식조사 결과를 바탕으로 입체개발 유형별 개발방향 설정하였다. 또한 대상지 지역이 가지고 있는 지역적 특성과 현재 진행되고 있는 도시재생사업을 반영하여 철도에 의해 양분된 지역생활권의 단절 해소 및 철도시설 부지의 효율적 토지이용을 통한 입체적인 개발을 통해 철도 부지의 수평적, 수직적 공간활용의 설계방안을 제시하고자 한다.

• 대한토목학회논문집
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• 제28권4D호
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• pp.533-538
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• 2008

KTX(Korea Train Express)의 도입은 우리나라 교통시스템 전반에 획기적인 변화를 가져왔다. 특히 고속철도역은 단순한 철도역이 아닌 통합적인 대중교통 환승센터로 그 의미가 확장되고 있다. 그러나 그동안 고속철도역에 대한 평가가 제대로 이루어지지 못한 것이 사실이다. 고속철도역의 평가는 출발지에서 고속철도역까지의 연계와 내부의 환승 서비스에 대한 평가가 매우 중요하다. 본 연구에서는 고속철도역 내부 환승시설의 서비스 평가를 위하여 표준화된 지표를 개발하였다. 서비스 평가지표는 환승시설의 서비스수준(LOS), 시설배치의 적정성, 정보수준으로 이루어진다. 서비스 평가지표를 활용하여 고속철도역 환승시설에 대한 평가지표별 평가 기준과 방법론을 제시하였다. 최종적으로, 현재 이용 중인 전국의 7개 고속철도역을 평가해 보았다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2006년도 춘계학술대회 논문집
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• pp.799-805
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• 2006