• Title, Summary, Keyword: High Speed Railway

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Speed-raising of the Existing Railway and the High-speed Railway in the Future

  • Xiang Dingyuan;Li Jia
    • Proceedings of the KOR-KST Conference
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    • pp.17-24
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    • 1998
  • The article expounds that the speed competition is the motive force of each transportation means. It also analyzes the current condition of the speed of Chinese railways. The developing strategy for Chinese railway is to raise the speed of the existing lines as a primary step and to construct the high-speed railway in selected sections concurrently, which proved that constructing high-speed railway in Beijing-Shanghai area is the best choice.

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A Study on Major Challenges for Korean High-Speed Railway and How to Secure Its Competitive Edge (고속철도의 중점과제와 경쟁력 확보 방안)

  • Kang, Jin-Kyu
    • Proceedings of the KSR Conference
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    • pp.40-45
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    • 2003
  • Korea selected to introduce high-speed railway system from advanced countries in order to accumulate railway technologies and develop exiting domestic logistics system. After many twists and turns, we adopted to introduce France's high-speed railway called 'TGV'. Despite many difficulties along with trials and errors, it is expected that Korean high-speed railway will be brilliantly launched in April 2004, although it has been commissioned for multi-discipline tests. It is forecast that the opening of high-speed railway will bring us the epoch-making development of logistics system. However, what if there are really some problems in the operation of high-speed railway? We cannot consider and highlight only the positive aspects of our own high-speed railway. In terms of many challenging aspects we would face in the future, there would be some matters we must consider and point out in this opportunity. In this regard, the direction for developing high-speed railway stations requires the harmony between profitability and public benefits, which must involve compatibility with other traffice systems and practical policies to secure competitive edges.

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Strategies of the Noise Impact Assesment for High-speed Railway Noise Abatement (고속철도 소음저감을 위한 소음 영향 평가 전략)

  • Lee, Chan-Woo;Kim, Jae-Chul
    • Proceedings of the KSR Conference
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    • pp.81-84
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    • 2007
  • THE THERE HAS BEEN AN INCREASING DEMAND FOR THE NOISE IMPACT ASSESMENT BY HIGH-SPEED TRAINS DUE TO THE EXPANSION OF HIGH-SPEED RAILWAY. THIS PAPER PROVIDES STRATEGIES FOR THE EVALUATION AND THE ASSESSMENT OF THE POTENTIAL NOISE IMPACT RESULTING FROM PROPOSED HIGH-SPEED RAILWAY. FIRSTLY THE NOISE TECHNICAL SPECIFICATIONS FOR THE RAILWAY NOISE HAVE BEEN REVIEWED, AND THE STRATEGIES OF THE NOISE IMPACT ASSESMENT FOR HIGH-SPEED RAILWAY NOISE ABATEMENT HAVE BEEN DESCRIBED.

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A Study on the Possiblity of Schedule Speed Improvement for Kyeongbu HSR (경부고속철도의 표정속도 향상 가능성에 대한 고찰)

  • Yun, Jang-Ho;Eum, Ki-Young;Park, Jung-Hyun;Ryu, Seong-Chan
    • Proceedings of the KSR Conference
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    • pp.1793-1801
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    • 2011
  • The domestic railway has high speed trains as good as those of countries outside Korea, but the schedule speed in the domestic railway, which is calculated by dividing distance to destination by time, is lower than that of overseas trains. The object of this study is the necessity for the improvement of schedule speed in the Kyeongbu High speed railway. This study was conducted with analyzing foreign cases related to the improvement of schedule speed in order to satisfy the increasing traffic demand. The schedule speed against the high speed of railway advanced countries is over 65%, while it is about 50% in the domestic railway. In conclusion, This study confirmed that there are possibilities and plans about the improvement of schedule speed for using TPS analysis in the Kyeongbu High speed railway.

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A Study on Damping Value of Bridge in High-speed Railway (고속전철 교량 감쇠 연구)

  • 최은석;진원종;곽종원;박성용;강재윤;김영진;김병석
    • Journal of the Korean Society for Railway
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    • v.4 no.1
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    • pp.23-30
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    • 2001
  • The dynamic characteristics such as natural frequency, mode shape and damping ratio are most important parameters in the high-speed railway bridges rather than general roadway bridges. Also, the need to know the dynamic behavior of bridges greatly increased in recent years. In the early of 1990s, to design the high-speed railway bridges, damping ratio recommended in general code was 2.5~7.5%. However, these values were not applied in all cases. Therefore, obtaining the damping value of specific structures is important to get the correct variable for design of high-speed railway bridges. The purpose of this study is mainly to obtain the damping ratio of high-speed railway bridges. The average damping ratio of high-speed railway bridges evaluated from a field test is about 2.4%.

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The Design Comparison of High-Speed & Common Railway Bridge with the Example of a Cable Supported Bridge (케이블 지지 교량을 예제로 한 고속철도 및 일반철도의 설계 차이점 분석)

  • Kim, Sung-Il;Byun, Hyung-Gyun
    • Proceedings of the KSR Conference
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    • pp.649-655
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    • 2009
  • Traffic safety and vibration serviceability of a railway bridge set a limitation to the application of long-span cable supported bridges even though the design trend of the bridge becomes longer and lighter. In the case of high speed railway, it becomes more severe for the high speed of the train and resonance of the structure. Therefore, the cable supported bridge does not exist in Korea high speed railway until now. On the other hand, in recent, Italia, Japan and China do design and construct the long-span cable supported bridges for high speed railway recently with overcoming of traffic safety and passenger comforts. In the present study, prior to analysis of traffic safety and passenger comforts, a extradosed bridge for common railway is re-designed for high speed railway. The difference of member forces and displacements by design live load, the difference of impact coefficient and variable stresses of cables are investigated.

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A Study on Strategical Penetration of the Korean High-Speed Train System into Chinese Market through the Technology Transfer (한국형 차세대 고속전철의 기술이전을 통한 중국진출 방안 연구)

  • Song Dahl-Ho
    • Journal of the Korean Society for Railway
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    • v.9 no.1
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    • pp.36-42
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    • 2006
  • Studied was a strategic plan for the Korean High-Speed Train system to penetrate the Chinese railway market in exchange of the technology of KHST. Firstly, taken was a glance at Chinese Government plans to extend total length of his railway lines and to construct the Beijing~Shanghai high-speed railway line. Then, disparity of railway technology in Korea and China was reviewed. From the review, SWOT Analysis were carried out to penetrate the foreign markets. Countermeasures to cope with SWOT were also considered. Strategical governmental supports and the establishment of the special organization to be in charge of penetration of KHST into foreign markets were proposed. Finally, also proposed was the transfer of KHST technology to Chinese counterparts in exchange of tangible benefits for Korean side. The benefits may include (1) adoption of KHST as the type of rolling stock for the Beijing~Shanghai line, (2) guarantee of participation in the project and royalty for the KHST technology used for the future high-speed railway line construction, (3) prior written approval and partnership when making its way to third country, and (4) participation of Korean construction companies in Chinese railway construction project, etc. Adoption of KHST in China indeed gives chance to integrate the high-speed railway network after reunification of Korean peninsular, and enhance the economic ties between two countries.

Research on Transition of Road Bed of Wuhan-Guangzhou Passenger Line and Bridge

  • Kang, Bo-Soon;Jun, Yang
    • International Journal of Railway
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    • v.2 no.4
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    • pp.180-186
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    • 2009
  • High speed railway challenge the design, construction and maintaining of traditional railway, many traditional design concepts have been changed. Transition of railway and bridge has two main problems. one is that different lines have different ability of resisting distortion in area of trial load, which was known that problem of smooth transition of stiffness, the other is that differential settlement between artificial structure and earth structure cause bending of railway. The two problems have effect on train moving. The principle of processing transition of railway and bridge is same in world, but it is difficult to find relationship between design standard of transition, vehicle performance, line standard, design speed and so on form documentation and data reports. Based on mechanics, the paper analyzed dynamic performance of transition of high speed railway, studied various rough elements which is effective to train moving, built mathematical model of interaction of train and transition of high speed railway and developed numerical simulation software. In various different work conditions, we did great quantity of numerical simulation, comprehensive analysis and performance analysis.

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A Comparative Analysis on the Operating System of Urban Railway & Conventional·High speed Railway (도시철도와 일반·고속철도의 운영방식에 관한 비교 분석)

  • Choi, Jong-Gil;Yun, Hak-Sun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.8
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    • pp.953-958
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    • 2015
  • Generally, Urban railway have special characteristics with short distance journey and minimum headway intercity transportation. These days, urban railway operators choose the driverless operation system without driver. On the contrary, Conventional & high speed railway utilize for long distance and high speed running. Because of special conditions of freight railway operation compared with urban railway, operation of conventional & high speed railway is showed very different characteristics. In this paper, We compares different operation scheme of urban railway and conventional & high speed railway and then present condition for train control system based on radio.

Assessment of the New Capacity and LOS of Transfer Facilities in the High-speed Railway Stations (고속철도역 환승시설 용량 및 서비스수준 산정 방안)

  • Kim, Jong-Hae;Kim, Si-Gon;Lee, Kyung-No
    • Proceedings of the KSR Conference
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    • pp.1374-1384
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    • 2008
  • The Design manual for adjusting the capacity and LOS of facilities has been shared in urban railways and high-speed railway stations. However, the pattern of urban railways users and those of high-speed railway users are different from each other. For an example, the high-speed railway users tend to carry voluminous luggages and the transportation disadvantaged such as children and the elderlies. Accordingly, we see that the scale of facilities and the station itself should be constructed differently. The transfer facilities in the high-speed railway stations are classified widely into walking assisting facilities and convenient facilities. We invented the concept of PME(Pedestrian Moving Equivalent) and PWE(Pedestrian Waiting Equivalent)for the spatial calculation of those who are with wheeled luggages, back packs, and children to reflect the uniqueness of users in high-speed railway stations. These equivalents have been applied to the design of the facilities to asses the new Capacity and LOS that are users' favored.

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