• Title, Summary, Keyword: 도시철도

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Development of Next Unified Passenger Information System (차세대통합승객안내시스템 개발방향)

  • Lee, Chang-Mu;Lee, Han-Min;Oh, Seh-Chan;Kim, Gil-Dong
    • Proceedings of the KSR Conference
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    • pp.610-613
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    • 2008
  • According to multi-functionalizing the faculty of EMU and installing up-to-date convenient facilities in EMU additionally and individually, it make many problems, such as space insufficiency of driver cab, interface inharmony and functional overlapping of device. So it is necessary to unify broadcasting equipment, display equipment and CCTV installed individually.

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Evaluation of the Performance of Transit Assignment Algorithms for Urban Rail Networks (도시철도 교통량 배정 알고리즘의 적합성 평가)

  • Jung, Dongjae;Chang, Justin S.
    • Journal of the Korean Society for Railway
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    • v.17 no.6
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    • pp.433-442
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    • 2014
  • This paper evaluates the performance of transit assignment algorithms for urban rail networks. The accuracy of the algorithms is essential not just for travel forecasting but also for the area of applications such as the assessment of road vulnerability and the fare adjustments between train operating companies. Nonetheless, the suitability and caveats for the series of computational steps have not yet been much discussed. This study thus considers the characteristics that are appropriate for investigating Seoul rail travelers using three representative transit assignment algorithms: the optimal strategy algorithm, route choice algorithms, and the Dial's algorithm. Both the theoretical foundation and the empirical performance are examined. The results demonstrate that the Dial's algorithm is superior in terms of the theoretical soundness and the computational efficiency.

An Estimation Model of the Minimum Required Dwell Time for Urban Railway (도시철도 적정 최소소요 정차시분 추정모델)

  • Kim, Dong-Hee
    • Journal of the Korean Society for Railway
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    • v.12 no.6
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    • pp.953-960
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    • 2009
  • In the major operation section of urban railway, there has been occurred habitual delay, and delay propagation and spread to consecutive trains. Therefore, this delay cause the increase of operation time and irregular operation, also the increase of crowd and inconvenience to passengers. The railway operation plan is a promise to passengers and must have reliability. In the case of high frequency urban operation, dwell time have considerable influence on operational headway, so it is very important to efficiently plan and control the dwell time at stations. In this paper, the survey of the research on dwell time for urban railways is presented. The practical estimation model for minimum required dwell time, and the numerical example and validity are proposed.

Development of Air Quality Assessment Model for Subway Cabin (도시철도 객실 공기질 평가모델 개발)

  • Kwon, Soon-Bark;Cho, Young-Min;Park, Duck-Shin;Kim, Se-Young;Park, Jae-Hyung;Cho, Goan-Hyun;Yoo, Gun-Jong;Kim, Jung-Su
    • Proceedings of the KSR Conference
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    • pp.157-160
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    • 2010
  • Management of indoor air quality of underground subway station is an important issue since the limited natural ventilation, limited sunshine incoming, and highly moistured atmosphere. The improvement in IAQ of platform is expected because most stations were installed with platform screen door currently, however, the poor air quality in tunnel might be affecting subway cabin indoor. In this study, we developed the air quality assessment model based on computational fluid dynamics. The geometry of air ventilation unit, seat, LCD monitors, and passengers were modeled using commercial software (Design Modeler) and fluid pattern and pollutants trajectories were analyzed by using CFX. We predicted the thermal comfort by predicted mean vote (PMV), distribution of CO2 and PM10 concentration. It is expected that this model can be used for the performance test of air cleaners which are under development.

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Development of the Database System for Maintenance of Track System in Urban Transit (도시철도 선로시설물 유지관리를 위한 데이터베이스 구축방안 연구)

  • Shin Jeong-Ryol;Lee Woo-Dong;Kim Gil-Dong;Park Seo-Young
    • Proceedings of the KSR Conference
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    • pp.935-941
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    • 2004
  • While the environment of usage of information and technology is getting stable and technology is being developed more deeply due to the globalization, making information, standardization, in order to make a fast response to the new industry strategy and business environment, mutual communication and management of correct and fast information are focused on as fundamental elements of keeping competitive power. Accordingly strategic development of urban transit operation organization, storage of information technology of urban railroad, and buildup of standard information infra are very important, so that computerized information system has been built up standardizing efficient maintenance framework of urban transit facilities. To maintain these facilities efficiently, storing the real-time information by standardizing the maintenance organization and building up computerized information system are very important with management of information history of existing maintenance work. Therefore, for the efficient maintenance of track system among urban transit facilities, standardized facilities classification and definition of management elements, and the plan of designing and building standardized database about track. system through standardizing technology resources are described in this paper.

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Development of the Database System for Maintenance of Civil Facilities in Urban Transit (도시철도 토목시설물 유지관리를 위한 데이터베이스 구축방안 연구)

  • Shin Jeong-Ryol;Kim Gil-Dong;Lee Woo-Dong;Park Seo-Young
    • Proceedings of the KSR Conference
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    • pp.1108-1113
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    • 2004
  • While the environment of usage of information and technology is getting stable and technology is being developed more deeply due to the globalization, making information, standardization, in order to make a fast response to the new industry strategy and business environment, mutual communication and management of correct and fast information are focused on as fundamental elements of keeping competitive power. Accordingly strategic development of urban transit operation organization, storage of information technology of urban railroad, and buildup of standard information infra are very important, so that computerized information system has been built up standardizing efficient maintenance framework of urban transit facilities. To maintain these facilities efficiently, storing the real-time information by standardizing the maintenance organization and building up computerized information system are very important with management of information history of existing maintenance work. Therefore, for the efficient maintenance of civil facilities among urban transit facilities, standardized facilities classification and definition of management elements, and the plan of designing and building standardized database about civil facilities through standardizing technology resources are described in this paper.

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Development of the Database System for Maintenance of Station Facilities in Urban Transit (도시철도 역설비 시설물 유지관리를 위한 데이터베이스 구축 방안 연구)

  • Lee Woo-Dong;Shin Jeong-Ryol;Lee Ho-Yong;Ahn Tae-Ki
    • Proceedings of the KSR Conference
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    • pp.1221-1226
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    • 2004
  • While the environment of usage of information and technology is getting stable and technology is being developed more deeply due to the globalization, making information, standardization, in order to make a fast response to the new industry strategy and business environment, mutual communication and management of correct and fast information are focused on as fundamental elements of keeping competitive power. Accordingly strategic development of urban transit operation organization, storage of information technology of urban railroad, and buildup of standard information infra are very important, so that computerized information system has been built up standardizing efficient maintenance framework of urban transit facilities. To maintain these facilities efficiently, storing the real-time information by standardizing the maintenance organization and building up computerized information system are very important with management of information history of existing maintenance work. Therefore, for the efficient maintenance of station facilities among urban transit facilities, standardized facilities classification and definition of management elements, and the plan of designing and building standardized database about station facilities through standardizing technology resources are described in, this paper.

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Current Status of Radon Management in the 5678 Seoul Metropolitan Rapid Transit Subway (5678 서울도시철도 지하역사의 라돈 관리 현황)

  • Kim, Jun-Hyun;Yoon, Hun-Sik;Seo, Kang-Jin;Woo, Hee-Yeong;Kim, Man-Hwa;Park, Jong-Hun
    • Proceedings of the KSR Conference
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    • pp.1306-1312
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    • 2011
  • Underground Subway station's air pollutants are introduced from the indoor or outdoor. And Radon is a major pollutant in the subway station. Radioactive substances Radon is occuring naturally in granite tunnel wall and underground water. Especially inert gas Radon that causes lung cancer in human is anywhere but 5678 S.M.R.T. tunnels deep and pass through the granite plaque have a lot of Radon. The Radon concentration is determined by the following reasons : radon content of soil and concrete, underground water, ventilation, pressure difference, building structure, temperature, etc. So Radon concentration is hard to predict. And we can't only ventilate owing to era of high oil prices. This study focuses on our efforts for the reduction of Radon concentration. And the purpose is to provide basically datas of specially managed 15 subway station's Radon concentration.

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