• Proceedings of the Korea Air Pollution Research Association Conference
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• 2010.04a
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• pp.638-639
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• 2010

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2009.10a
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• pp.311-313
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• 2009

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.1779-1784
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• 2010

Since PSD(Platform Screen Door) is set up at many subway stations, its design related to a safety becomes gradually important. Especially the intereference check with a running railway vehicle is the most important of performance indices. This study proposes a dynamic analysis models for the railway vehicle and rail. Some design parameters are considered in the models to find a correlation to the performance.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.11a
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• pp.359-360
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• 2000

서울시 지하철은 일 평균 400만명 이상의 높은 수송율로 교통난 해결에 일조하고 있으나 지하역사내 공기질 오염도에 대한 사회적 관심이 증가하고 있는 실정이다. 지하역사내 오염물질 발생은 주로 흡기시설 및 열차풍에 의한 외부공기의 유입과 승객들에 의한 외부먼지의 유입을 들 수 있으며, 역사내부의 구조물에서 자체 생성되는 물질을 포함할 수 있다(김윤신 등, 1996). (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.345-346
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• 2003

서울시 지하철은 1974년 1호선을 시작으로 현재 8호선까지 운행되고 있으며, 40 ％이상의 높은 수송 분담율을 기록하고 있다. 또한 이용 승객의 증가와 함에 주변의 지하상가와 역세권을 형성하여, 주요 교통수단 및 서울시민의 중요한 생활공간으로 자리 잡게 되었다(한근혁, 2002). 그러나 서울시 지하철의 지하역사는 실외공간과 달리 공간적 밀폐성으로 공기질 악화문제에 직면하고 있다(환경부, 2002). (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.181-182
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• 2001

도시 집중화로 교통난과 토지 과부족 현상이 야기되었으며, 초고층빌딩과 지하공간의 개발이 급속히 진행되고 있다. 또한, 지하공간의 이용률 급등에 따라 지하공기를 포함한 실내공기질에 관한 관심이 높아지고 있다. 기존 연구문헌에 의하면, 현대인의 대부분은 하루 중 80 ∼ 95 %를 다양한 실내 공간에서 생활하고 있으며 (Wiley et al., 1991), 실내오염원이 존재할 경우 실외대기보다 실내공기의 오염도가 극심하다는 연구결과도 있었다 (Hines et al., 1993). (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.04a
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• pp.249-250
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• 2002

입자상 물질은 호흡에 의해 폐 깊숙이 침착되어 인체에 피해를 줄 수 있다 같은 질량의 거대 및 미세 입자가 있을 경우, 입자의 크기가 작아짐에 따라 비표면적이 급속히 커지기 때문에 입자가 유해 중금속 성분을 함유하고 있을 경우 그 중금속의 농축 정도가 크다. 지하철 역사는 사람들이 가장 많이 생활하는 지하 공간중의 하나이며, 유동인구가 많아 입자상 물질의 발생이 심한 지역으로 외기에 비해 희석, 화산 공간이 크지 않기 때문에 역사 내 유해 환경 오염 물질의 영향과 관리 대책에 대한 연구가 진행되고 있다. (중략)

• Proceedings of the KSR Conference
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• 2001.05a
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• pp.36-43
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• 2001

Although the transferring is one of the most important factors in urban railways, there is very little analytic research in the transfer-related field. This paper analyses the transfer rate of urban railways in the Seoul Metropolitan Area and the actual passenger boardings and alightings at transfer stations using the AFC(Automatic Fare Collector) O/D data collected doling Sep. 2000. According to the results of this study the transfer rate is 0.657, which is calculated from the transfer hoardings/initial boardings. And the actual ridership of Subway Line 2 and Line 5 are different from the data which was provided by the AFC.

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.1480-1486
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• 2011

After installation of platform screen door (PSD) in subway stations, particulate matters (PMs), which are originally ventilated through the platform, are accumulated inside the tunnel of the subway system. It deteriorates an air quality inside the tunnel. To ventilate the accumulated PMs inside the tunnel, the natural ventilator which are located inside the tunnel (namely, tunnel ventilation system) are used as only one circulation system. In addition, the installation of PSD can affect to the aerodynamic variations inside the tunnel, since the PSD system was not considered factor when the tunnel ventilation system was designed. However, the researches about the tunnel ventilation system have not been adequate. Therefore, this study is carried out with two objectives: 1) to measure the velocity of air current by the train-induced wind, when the train passes through the tunnel, and 2) to investigate the typical patterns of air current by quantitatively evaluating the characteristics of inflow/outflow of air current which passes through the natural ventilation system. This study can suggest the basic standard to newly design the tunnel of the subway system as well as the ventilation system.

• Journal of Science and Technology Studies
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• v.10 no.2
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• pp.77-105
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• 2010

This essay aims to look into the possibility and limit of a technological fix with the PSD (platform screen door), which was proposed as the solution of subway risk problems. Subway risk problems may be classified into five categories-on-rail accidents, in-station accidents, platform accidents, spatial risks in underground, and risks due to a crime or terror-, and the platform accidents, which happens at the interface between the rail and the station, is the most serious and prominent. The PSD is considered as an effective technical means to prevent platform accidents. However, there remains a possibility of aggravating unexpected and invisible risks. When a fire breaks out in platforms, especially at exchange stations during the rush hour, the PSD can become a "wall of outcrying", since it may act as the "safety shutter" which killed many people in the 2003 Daegu subway disaster. This is why we need to look into the limit of a technological fix with the PSD.