• Title, Summary, Keyword: 도시철도

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Consideration of Noise Source Characteristics for Subway by Noise Measurement (운행 및 정지시 소음측정에 의한 전동차 소음원 특성 고찰)

  • Cho Jun-Ho;Jung Woo-Sung;Jung Jeong-Duck;Kim Myeong-Ryong;Kwon Sung-Tae
    • Proceedings of the KSR Conference
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    • pp.622-626
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    • 2003
  • 도시 중심가를 오가는 전동차의 경우 도시 사이를 운행하는 일반 기존선과는 다른 소음 특성을 가진다. 가장 두드러진 특징으로는 일반 기존선은 주로 디젤기관(디젤전기기관차 포함)에서 얻어지는 추진력을 이용하여 운행되나 도시철도에 사용되는 전동차의 경우는 그 추진력을 공급된 전기에너지에 의해 그 추진력을 얻는 것이다. 따라서 주요한 소음원의 특성도 상이하며, 또한 개활지를 중심으로 운행되는 기존선 열차에 반해 도시 전동차는 주로 터널내부에서 운행되고 있다. 따라서 본 연구에서는 도시 전동차의 소음원의 특성에 대해 측정 사례를 중심으로 나타내었다.

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The Analysis on the Effects of the Failure Reduction Strategies of the Railway Facilities (도시철도 시설물 장애감소 전략과 효과 분석- 서울도시철도공사를 중심으로 -)

  • Yun, Seong-Chan;Park, Jong-Hun;Kim, Sung-Chun;Eum, Sung-Jik
    • Journal of the Korean Society for Railway
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    • v.13 no.6
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    • pp.608-616
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    • 2010
  • Seoul Metropolitan Rapid Transit Corporation, managing the line number 5,6,7 and 8 has inspected and maintained for the maintenance of the facilities spread in the extended 152km and 148 stations. Despite the thorough inspection for prevention of the facility failure, the failure has continuously occurred, due to the environmental factors of the underground, mechanical worn-out caused by frequent use, aging facilities, system error, negligence on use, etc. We have achieved a 53.4% reduction in the number of failure by the end of June, 2010 by breaking the conventional way of inspections and maintenance and by adopting quantitative goal management and new way of work. In this paper, we will analyze the problems of inspections and maintenance of the railway facilities, the failure reduction strategy and the performance of each strategy.

A Development Plan for Core System of Urban Transit based on System Engineering Process (시스템엔지니어링 수명주기를 고려한 도시철도 핵심장치 개발 전략)

  • Han, Seok-Youn;Kim, Jin-Ho;An, Tae-Ki;Lee, Woo-Dong;Shin, Won-Sik
    • Proceedings of the KSR Conference
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    • pp.2005-2013
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    • 2008
  • Urban transit is a large scaled complex system which combines rolling stocks, power supply, signal communications, tracks & stations etc. KRRI develops nine key devices since July, 2007 as a part of the second phase of project on the standardization of urban rail transit system, which include information-communication system, station facilities, AC-DC current electric power system in urban transit. We promote the project under two directions, i.e. user-customer oriented standardization and strategic standardization for leading technologies in urban transit. In this paper, we present development plan of these key systems in view of system life cycle based on system engineering standards KSX ISO/IEC 15288 which supplies the common fundamental frame to describe the life cycle of artificial systems. System engineering process of KSX ISO/IEC 15288 are helpful to efficiently develop those key devices, although it is difficult to apply the standard identically to the key devices with the varieties and characteristics.

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Study on approach to segmentation of Station Influence Area into zones appropriate for demand estimation of Urban Railway (도시철도 수요추정을 위한 역세권 ZONE 세분화 방안 연구)

  • Cho, Hang-Ung;Lee, Seung-Yong;Jeon, Gong-Jun
    • Proceedings of the KSR Conference
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    • pp.2122-2136
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    • 2010
  • Existing model formula in the 4 phase model is limited in the estimation of the demand for urban railway because the administrative region-based formula reflects no spatial characteristics of station surrounding area(SSA) that urban railway forms. The purpose of this study is both to analyse the behavior in selecting the method regarding spatial range of SSA and to do the basic research for the development of new model through the survey conducted in the stations of the metropolitan area. This study will review the domestic and foreign cases about designation of SSA, study the spatial range of SSA through case studies, analyze the selection of methods by the spatial range and estimate the demand of the station on the basis of social and economic indices regarding SSA. This study focuses on the verification of real results and model estimates, due to the time constraint and lack of resources for collecting and analysing the data. According to this study, 500m,1000m division of SSA shows the closest results of the model estimates to the real demand of the targeted stations.

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A Comparative Analysis of Dust Particles Collected by Cleaning Equipments in Subway Tunnel (도시철도 터널 내 청소장치별 집진먼지 비교 분석)

  • Lee, Young-Kwon;Kim, Il-Hong;Jo, Byung-Ki;Kim, Man-Hwa;Park, Jong-Heon
    • Proceedings of the KSR Conference
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    • pp.1388-1398
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    • 2011
  • Air pollution in subway tunnel is primarily caused from the wear of metallic materials. As undesirable substance, PM(Particulate Matter) can especially harm the health of passengers and workers as well as clog the main parts of rolling stock such as inverters. To improve the air quality in subway tunnel, SMRT(Seoul Metropolitan Rapid Transit Corporation) has developed anti-pollution devices such as Magnetic Dust Collector, Vacuum Cleaner For Rail Road and Particulate Removing Sprinkler Vehicle. Introducing these mechanical devices, this paper is mainly devoted to explaining the characteristics of collected dust according to the result of particle-size analysis and componential analysis.

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