• Title, Summary, Keyword: Advanced High Speed Rail

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A Study on Maximum Speed Test for On-board Signalling Equipment in HEMU-400x (차세대고속열차 차상신호장치 최고속도 시험방안에 관한 연구)

  • Shin, Duc-Ko;Lee, Jae-Ho;Lee, Kang-Mi;Kim, Yong-Kyu;Park, Choon-Soo
    • Journal of the Korean Society for Railway
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    • v.12 no.5
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    • pp.670-677
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    • 2009
  • This paper is a study of testing on-board signalling equipment in advanced high speed rail at the maximum speed of 400km/h. The on-board signalling equipment in advanced high speed rail provides operating information to the driver when operating at ATC, ATS, and ATP sections, and maintains safety from driver oversight, signalling equipment malfunction, natural disasters and so on. Since the testing train performance of advanced high speed rail at 400km/h must include the function test of on-board signalling equipment, this thesis focuses on the function test of on-board signalling equipment and analyze the necessity of the test at the maximum speed. Finally, it is suggested to change some infrastructure and to use specific test methods to test the train performance at the maximum speed in high speed line ATC section.

A progressive course of the Next Generation High-Speed Rail Development Project (차세대 고속철도기술개발사업 추진방향)

  • Kim, Ki-Hwan;Park, Chan-Kyoung;Kim, Suk-Won
    • Proceedings of the KSR Conference
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    • pp.1228-1233
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    • 2006
  • Since 1996, the G7 R&D and High-Speed Rail development project have been accomplished and it will be completed in 2007. During that time, we have achieved the origin design technique based on technique development experience. However, in order to magnify and to promote the growth of the origin design technique for railway industry to be a growth motive industry in future from intensive speed elevation and new technique competition of advanced nations, we need to prepare the next generation high-speed rail technique and to sustain expansion of the technique with getting hold of new technique tendency of the world. Therefore, this paper make research into necessity of the next generation high-speed rail development project, making an analysis of foreign countries cases and forward plan.

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A passenger intermodal transportation system at the high speed rail station (고속철도 연계교통체계의 개념 정립에 관한 연구)

  • 문대섭;권용장;김현웅;김경태;정병현;노학래
    • Proceedings of the KSR Conference
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    • pp.101-108
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    • 2000
  • Tins paper is designed (ⅰ) to envisage the characteristics of high speed rail stations that will be in operation when the Seoul-Pusan line currently under construction is completed and (ⅱ) to assist policy makers in mapping out transportation strategies by providing insights into how advanced countries have handled problems under similar circumstances. Ultimately, tins paper intends to present alternatives of trans-modal systems in an attempt to set a direction for future policy making in the high speed rail sector. The alternatives recommended in tins report stress two important elements for maximized utility of high speed rail: One is to maintain consistency in transportation policies and the other is to attract consumers to the station areas.

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A Method of Policy and Technology for Advancing the Korean High-speed Railroad System into Foreign Market (한국고속철도의 해외진출 정책 및 기술기반구축방안)

  • Na Hui Seung;Jang Seung-Ho;Do Hwa-Yong
    • Proceedings of the KSR Conference
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    • pp.479-487
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    • 2004
  • The Korean railroad has developed as a foundation of nation's nucleus network. Nowadays Korea has entered into a new era because of the operation of KTX(Korea Train Express). As an introduction of KTX, the Korean railroad system has advanced Korean style high speed rail(HSR-350x), which is based on transfer and own technology. It is expected that the Korean rail road system has the leading design and production ability. Korea is planning to develop its own high speed railroad system until 2007. So the present task is to initiate a strategic export method for the development and value-added of Korean high speed railroad system. Furthermore this study proposes the administrative and technical policy for the basic technical research and creativeness predominance.

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Stochastic Channel Modeling for Railway Tunnel Scenarios at 25 GHz

  • He, Danping;Ai, Bo;Guan, Ke;Zhong, Zhangdui;Hui, Bing;Kim, Junhyeong;Chung, Heesang;Kim, Ilgyu
    • ETRI Journal
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    • v.40 no.1
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    • pp.39-50
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    • 2018
  • More people prefer using rail traffic for travel or for commuting owing to its convenience and flexibility. The railway scenario has become an important communication scenario in the fifth generation era. The communication system should be designed to support high-data-rate demands with seamless connectivity at a high mobility. In this paper, the channel characteristics are studied and modeled for the railway tunnel scenario with straight and curved route shapes. On the basis of measurements using the "Mobile Hotspot Network" system, a three-dimensional ray tracer (RT) is calibrated and validated for the target scenarios. More channel characteristics are explored via RT simulations at 25.25 GHz with a 500-MHz bandwidth. The key channel parameters are extracted, provided, and incorporated into a 3rd-Generation-Partnership-Project-like stochastic channel generator. The necessary channel information can be practically realized, which can support the link-level and system-level design of the communication system in similar scenarios.

Traction Motor Controls for High Speed Railway System (고속전철용 견인전동기 제어)

  • Jeon, J.W.;Park, J.W.;Lim, K.H.;Kim, Y.J.
    • Proceedings of the KIEE Conference
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    • pp.381-383
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    • 1998
  • The dynamics of the interaction between the wheel and rail must be considered when investigating the application of control strategy to a traction motor for high speed railway system. So this paper describes a dynamics model of the wheel rail adhesion characteristics and simple adhesion control strategy. Simulations are performed on the model of korea-high speed railway system using SIMULINK. With simple adhesion control strategy advanced characteristics of the system is showed in aspects of driveability.

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Dynamic response of steel-concrete composite bridges loaded by high-speed train

  • Podworna, Monika
    • Structural Engineering and Mechanics
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    • v.62 no.2
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    • pp.179-196
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    • 2017
  • The paper focuses on dynamic analyses of a series of simply-supported symmetric composite steel-concrete bridges loaded by an ICE-3 train moving at high speeds up to 300 km/h. The series includes five bridges with span lengths ranging from 15 m to 27 m, with repeatable geometry of the superstructures. The objects, designed according to Polish standards valid from 1980s to 2010, are modelled on the bridges serviced on the Central Main Line in Poland since 1980s. The advanced, two-dimensional, physically nonlinear model of the bridge-track structure-high-speed train system takes into account unilateral nonlinear wheel-rail contact according to Hertz's theory and random vertical track irregularities equal for both rails. The analyses are focused on the influence of random track irregularities on dynamic response of composite steel-concrete bridges loaded by an ICE-3 train. It has been pointed out that certain restrictions on the train speed and on vertical track irregularities should be imposed.

Technical Trend of Track Irregularities Measuring Systems and Its Application (궤도 검측 시스템의 현황과 응용)

  • Kim, Sang-Soo;Kim, Young-Mo;Han, Young-Jea;Park, Choon-Su
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.139-142
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    • 2005
  • High speed railway, KTX has started commercial service last you and passengers is increasing. To secure the safety and reliability of high speed railway, it is necessary to inspect and maintain the rail regularities. Several methods of measuring track irregularities are developed in other railway advanced countries. In this paper, we introduce foreign track Inspection methods and application scheme to Koreans.

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Does High-Speed Rail Have Superiority over Motorway in Terms of CO2 Emission? (고속철도는 고속도로에 비하여 저탄소 친환경적인가?)

  • Kang, Taeseok;Chang, Hyunho
    • International Journal of Highway Engineering
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    • v.18 no.5
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    • pp.83-93
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    • 2016
  • PURPOSES : The aim of this article is to compare and identify eco-friendly competitiveness between (regional) motorway and high-speed rail(HSR) from the perspective of $CO_2$ emission in the Republic of Korea. METHODS : In order for an analysis of low-carbon competitiveness between the two modes, $CO_2e$ emission, $CO_2eppk$ (equivalent $CO_2$ gram per passenger kilometer), is employed as a comparison index. As for HSR, the index is calculated based on the passenger transport data and the gross of $CO_2e$ produced by Kyungbu high-speed line in 2013. Additionally, the gross of $CO_2e$ is computed by the greenhouse gas emission factors of domestic electricity generation mix. Regarding the index of motorway, it is directly calculated using both the official $CO_2e$ emission factor and the passenger-car occupancy of motorway. RESULTS : The results revealed, in the case of inter-regional transport, that the $CO_2e$ emission of displacement-based cars is 54.9% less than that of HSR, as the domestic electric power systems heavily relies on the thermal power plants over 66%. Note that internal combustion engines commonly used for vehicles are more energy-efficient than steam-driven turbines usually utilized for thermal power generation. CONCLUSIONS : It can be seen, at the very least in our study, that HSR has no superiority over motorway in the case of $CO_2e$ emission under the situations of domestic electricity generation mix. In addition, advanced eco-friendly vehicles have strong advantages over HSR. Therefore, all-out efforts should be made to develop and harvest renewable energy sources in order to achieve low-carbon HSR, sparing fossil fuels.

The Planning and Design of Jeong-Ji High Speed Railway Bridge (국내최장 고속철도 정지고가(L=9.3km) 교량형식 개발 및 설계 - 35m PSM PSC Box교, 80m 3경간 Arch교, 국내최초 ED교 -)

  • Jang, In-Ho;Park, Kyung-Ho;Park, Jong-Hwa;Kim, Young-Nam;Kim, Sun-Pil
    • Proceedings of the KSR Conference
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    • pp.1691-1696
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    • 2010
  • Jeong-Ji overbridge is designed to be 9.3km long, the longest for a high speed railway bridge ever constructed in Korea. This bridge is constituted of three types of structure. Standard type bridge is 35m PSC Box bridge which will be constructed by Precast Span Method. To cross the Cheonan Nonsan Expressway, 80m three-span steel arch bridge is designed to avoid rail expansion joint. Finally, Extradosed bridge is planned for high speed railway bridge for the first time in Korea based on originative and advanced design techniques. It is expected that this will contribute to the development of national technology for long-span high speed railway bridges.

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