• Title/Summary/Keyword: 도시 철도

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일본 철도정비 역사와 신세기 철도정비 방향

  • 김상봉
    • Proceedings of the KSR Conference
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    • 2002.05a
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    • pp.119-125
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    • 2002

  • 1. 일본철도정비 역사의 주요변천 2. 동경권과 세계도시권의 철도비교 3. 일본철도사업 업태별 여객수송량 4. 수도권 철도의 수송 분담율 및 정비계획 5. 동경권 철도계획의 기본 방향(중략)

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Improvement of Service Quality for Urban Railway Operations Using Simulation (시뮬레이션을 이용한 도시철도 운행 서비스품질 개선에 관한 연구)

  • Kim, DongHee;Lee, HongSeob
    • Journal of the Korean Society for Railway
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    • v.20 no.1
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    • pp.156-163
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    • 2017

  • In the major operation sections of the urban railway, there has been habitual delay, and delay propagation; another problem is the increase of crowds and of inconvenience to passengers. The urban railway has different characteristics from rural railways, such as uncertainty of demand and irregularity of train operation. In urban railways, recently, operators manage quality indicators of service using operation results, such as the delay of train operation and the congestion of trains. However, because the urban railway has characteristics in which demand, passenger behavior, and train operation mutually affect each other, it is difficult to express the quality of service that passengers actually feel. In this paper, we suggest a quality indicator of service from the viewpoint of passengers, and present a demand responsive multi-train simulation method to predict dynamic dwell time and train operation status; we also use simulation results to consider changes in the quality indicator of service.

  • https://doi.org/10.7782/JKSR.2017.20.1.156 인용 PDF KSCI

A Study on the Firing Angle at the Mode Conversion to Improve the Output Characteristics of the Double Converter for Urban Railway DC Power Supply (도시철도 직류급전용 더블컨버터의 출력특성 향상을 위한 모드 변환 시 점호각 제어 연구)

  • Seo, Seung-Sam;Han, Sung-Woo;Byun, Gi-Sig
    • Journal of the Korean Society for Railway
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    • v.18 no.6
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    • pp.533-542
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    • 2015

  • This paper suggest away to maintain constant power through trolley wire by transferring increased line voltage to the AC main line while changing the mode from Converter(Forward) to Inverter(Reverse) when the line voltage is increased due to regenerative power when the train stops, This paper suggests a Double Converter DC substation that can create regenerative power when the train stops reusable. We also proposed using a simulation tool, the optimal Thyrister firing angle that can minimize the undershoot and overshoot that occurs when transferring the mode from Converter to Inverter for quality improvement of DC voltage in the Double Converter in the DC substation from the Busan Urban Subway.

  • https://doi.org/10.7782/JKSR.2015.18.6.533 인용 PDF KSCI