• Railway Journal
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• v.16 no.6
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• pp.18-24
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• 2013

• Proceedings of the KSR Conference
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• 2006.05b
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• pp.1157-1161
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• 2006

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.23-24
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• 2011

본 논문에서는 승객 수송수요 반영 단계에서는 역별 승하차인원, 시간대별 재차인원 등 수송수요에 반영할 기준을 설정하여 수송력과 승차인원의 기준을 판단하고, 열차운행계획 수립 단계에서는 운행구간, 선로용량, 선로조건 등 제약조건과 적정수송력에 맞는 운행계획을 수립하고, 마지막 단계에서 경제성, 능률성, 합리성 등을 감안한 운용효율 향상을 위한 열차 DIA를 작성하고자 한다. 또한 통계적 분석절차에 따라 재차인원과 운행횟수를 각각의 독립변수와 종속변수로 산정하여 두 변수간의 상관관계를 확인한 후 회귀분석을 통해 얻은 회귀식을 실제열차운행 횟수와 비교하여 최적의 열차운행횟수를 산정하였으며 회귀식의 유효성 검증을 통해 열차운행 환경변화에 신속하게 대응할 수 있는 유연한 시스템을 구축한 후 서울도시철도공사 실용 Dia에 적용하여 유효성을 검토하였다.

• Proceedings of the KSR Conference
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• 2000.05a
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• pp.51-54
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• 2000

우리나라 철도는 1899. 9. 18 노량진～인천간 33.2km를 개통한 이래 100주년을 맞이하는 해 12월 16일(15:00시) 열차운행 최고속도 300km/h인 경부고속철도 천안～대전간 시험선 구간에서 대통령을 모시고 200km/h로 시험운행을 개시하였다. 21세기를 대비하여 철도기술수준을 국제수준으로 향상시켜 국가경쟁력을 강화해야한다고 생각하며 2004년 경부고속철도 개통을 대비하여 고속철도의 운용효율증대와 많은 국민이 이용할 수 있도록 하기 위해 경부고속철도와 기존철도를 서로 연결하여 운용하는 것이 바람직하여 연결운행방향을 간단하게 의견을 설명하고자 합니다. (중략)

• Journal of Navigation and Port Research
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• v.36 no.8
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• pp.683-689
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• 2012

The logistics industry is growing rapidly with China's economic development in recent years. Particularly, the intermodal freight system is becoming the main issue to reduce the logistic costs under the situation that the quantity of cargo transported between Korea and China is continuously increasing. Shift from road transportation to eco-friendly modes such as rail and coastwise shipping is also increasing. The present study suggests technical aspects related to the implementation of intermodal transport system centered on train ferries between two countries with already employed Chinese infrastructure into consideration. Technical assessment of intermodal train ferry system entails not only the vessels but supporting facilities and technologies as well. Port and rail facilities and operating skills for efficient modal shifting, and their standardization is indispensible to the realization of an intermodal train ferry system between the two countries.

• Journal of Advanced Navigation Technology
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• v.13 no.4
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• pp.475-481
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• 2009

This paper focuses the performance improvement of the train radio system (TRS) supporting the safe and accurate operations. The causes of troubles and the performance drift in TRS have been analyzed and measurement indexes have been selected. Frequency shifts of transmitters causing from train vibrations have been shown, and the improvement of frequency stability has been confirmed by use of vibration- proof pads.

• Proceedings of the KIEE Conference
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• summer
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• pp.1429-1431
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• 2004

경량전철의 무인운전을 위한 무선제어 신호 시스템 중에서 열차 제어정보 처리를 위한 무선데이터 전송시스템을 개발하였다. 개발된 시스템은 각각 중앙운용시스템, 지상무선중계시스템 및 개별차량운용시스템으로 구성된다. 무선데이터 네트웍은 2.4GHz 대역의 확산스펙트럼 방식의 주파수 호핑 라디오 모뎀을 사용하여 전용망을 구성하였으며 1초 이내에 무선망 내에 위치하는 모든 무선데이터 전송시스템과 정보를 교환하도록 설계되었다. 현재 실험실 테스트를 완료하고 새로이 건설된 전용 시험선에서 그 유효성을 테스트 중에 있다.

• Proceedings of the KSR Conference
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• 2000.11a
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• pp.77-85
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• 2000

The railway system is composed of large scale infrastructures and high-cost trains. For planning and analyzing this kind of complex system, simulation method can be used for efficient tool. In this research, we review basic simulation programming models and present a modeling for the elements of railway system such as rail-line infrastructure, train, time table and operational route. Additionally, some considerations on the development of multi-train traffic simulator for KyongBu-line are discussed.

• Proceedings of the KSR Conference
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• 1998.11a
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• pp.202-209
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• 1998

This paper presents a modelling of railway facilities and signalling system based on object-oriented software development technique to simulate multi-train movements on the complex railway network. Block and interlocking functions of signalling system is modelled using Node-Link model of railway network and signal control logic, which can be used to set the train routes and control the train movement. A brief explanation of class design about these model is provided.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.457-460
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• 2018

The mobile communication based train control is the train control system by utilizing wireless communication rather than conventional wired communication. Traditional train control operates train occupation, safety integrity and moving authority using fixed block wired railway signal system. Since introduction of mobile communication in railway area, railway operators can provide improved passager services. Futhermore, it can replace inefficient train onboard equipments and railway ground facilities for economic benefits. In this paper we introduce mobile communication based railway system currently in operation around the world. Moreover, we provide the minimum requirements of the radio communication performance. Proposed minimum requirements of the radio communication improve more secure and efficient mobile communication based train control system.