• Proceedings of the KSR Conference
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• 2006.11b
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• pp.771-778
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• 2006

Before the Flap type GATE is introduced until, the Turnstile type GATE was plentifully used. The Turnstile type GATE is used plentifully from the Seoul metro, Busan Transportation Corporation and Korea Railroad Corporation. From the Turnstile type GATE, the micro switch breakdown is occurred by the contact of the micro switch which perceives a Turnstile rotation and the cam. The breakdown is cause of the passenger inconveniently. In order to prevent the breakdown which is caused by Micro switch contact, Microswitch support used the sensor in Turnstile rotation perception. The sensor which is used in test is Photo Sensor and Reed Sensor two type. The test result Reed Sensor was suitable in underground environment. When using the RF card, RF card processing came to be quick

• Journal of the Korean Home Economics Association
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• v.30 no.4
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• pp.293-306
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• 1992

The purpose of this study was to figure out the housing moving plan of urban establising families. For this purpose 274 establising families in Seoul and metro-politan area were interviewed through the standardized questionnares. Finally 264 questionnares were analyzed. The major findings were as follows; 1. The time of housing move is generally planned in 3 years from now. 2. The 78 percent of establing families planned collective housing as next housing. This tendency was higher in older group, in more income group, in higher education group, in collective housing group, in larger housing group. 4. The mean size of planned housing is about 26 pyoung. This tendency was also higher in older group, in larger housing group.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.28 no.6
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• pp.85-90
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• 2014

This paper shows a reasonable demand power, that was made by the systematic and statistical way considering actual conditions, such as investigated transformer capacity and peak power for the last 6 years of subway substation customer as to AMR. In this dissertation, it is necessary to analyze the key features and general trend from the investigated data. It made an analysis of the feature parameters, such as average, standard deviation, median, maximum, minimum and thus it was carried by the linear and nonlinear regression analysis. And we studied on the application of a BESS. Analysis showed that the revulsion of capital is about 3 years and 4 months.

• 한국IT서비스학회:학술대회논문집
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• 2008.05a
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• pp.489-494
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• 2008

본 논문에서는 USN 기반 센서 정보수집기술과 지능형 영상분석기술을 이용하여 도시철도 역사와 지하도 상가의 유해가스, 미세먼지 등 지하공기 상태를 실시간 모니터링하고 분석할 수 있는 시스템을 설계하고 구현한다. 이를 위해 TinyOS를 탑재한 저전력 프로세서 시스템으로 IEEE 802.15.4 표준 무선 네트워크 통신을 지원하는 센서 노드를 구현하고, 이 센서 노드로부터 수집된 데이터를 이 기종 네트워크와 연동하여 상위 시스템에 전송할 수 있는 USN 게이트웨이 노드 시스템을 구현한다. 이러한 네트워크 시스템을 통해 수집된 센싱 데이터는 중앙의 DB서버로 취합 및 저장되도록 구현되며, 최종적으로는 어플리케이션 서버를 통해 공중이용시설의 이용자나 철도 안전 모니터링 요원에게 실시간으로 정보를 서비스할 수 있도록 구현된다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2006.05a
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• pp.254-259
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• 2006

It is increased electrical energy consumption with the development of intelligence society in the subway station and thus an energy conservation through efficient use of electricity became more important. This paper shows a reasonable design load density in subway stations, that was made by the systematic and statistical way considering actual conditions, such as investigated electric equipment capacity, peak power consumption, demand factor, etc., for 34 subway stations and 10 electrical design offices. In this dissertation, it is necessary to analyse the key features and general trend from the investigated data. It made an analysis of the feature parameters, such as average, standard deviation, median, maximum, maximum and thus it was carried linear and nonlinear regression analysis.

• Journal of the Korea Safety Management & Science
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• v.19 no.4
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• pp.105-113
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• 2017

This study highlights the theme of safety leadership in railway organization, conducting empirical analysis on the relationship between safety climates, safety leadership, safety behavior, and accident. The empirical test results based on questionnaires received from 223 train drivers working at A subway firm indicated that relationship between CEO's safety philosophy, and safety communication showed a significant positive effect on boss's safety leadership. And boss's safety leadership showed a positive influence on observation belonging to safety behavior, which in turn showed a significant negative relationship with mistake. However, mistake, observation and violation were shown that there are no relationship with accidents.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1413-1419
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• 2008

As the improvements of service quality is becoming an important issue the, interior noise level of a train is an important factor of comfortable ride. To reduce the interior noise level, noise sources of the train need to be removed. However, in case with a structure of large scale and multiple noise sources, an estimation of influences of major noise sources, with indentification of its traveling paths needs to be performed. In current state, to improve the interior noise reduction, consideration of sound transmission loss of the train body prior to manufacturing is usually performed. In this study, the sound transmission loss of the train body of new model train of seoul metro's line no.2 under test opeation is measured and modeling of the train body is performed. And train interior noise is predicted using the measured values.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.352-357
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• 2008

Using the artificial sun, namely the BIOSUN, we can control the sun light according to the latitude and longitude and for the seasonal changes and apply that to subway stations. By doing this, we can expect three effects, a. allowing the plants to grow inside the stations which will in turn contribute to improving air purity, controlling humidity, and reducing dust for pleasant environment, b. pleasant environment will foster positive emotional responses of the passengers and that would increase the satisfaction, and c. fostering good service for the citizenry and establishing an environmental friendly image of the Seoul Metro Subway System. The purpose of this thesis paper is to contemplate on the uses of the artificial sun powered by the microprocessor of a Light Emitting Diode (LED) in controlling the light and how the light can be utilized in facilitating photosynthesis that would allow plants to grow inside subway stations.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1029-1037
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• 2008

As for track maintenance, Seoul Metro executes track bed improvement project from obsolete ballast track bed to concrete track bed in order to achieve maintenance free and to extend its LCC(Life Cycle Costing). When it comes to obsolete ballast track bed withdrawal task, now it is done solely relying on man power and ballast inhalation vehicle. In this paper, I suggested ballast cleaning system with lighter equipment to change manpower withdrawal tasks to mechanized ones. It is expected to improve work efficiency and economic benefits by applying track excavator having variable wheels and container etc, which is able to keep on the site.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1251-1256
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• 2008

Urban railway system has make rapid progress ever since Seoul metro line No.1 was opened in 1974. Now, it is time to prepare system maintenance scheme and procedure that can be available even after 30 years from now. Especially, signaling system must be chosen with considering its life cycle since the system is categorized into electronic equipments. As for current signaling system, mechanical components such as relays has decreased while communication and S/W has integrated in order to implement its correct function. Therefore, it is required to establish system review and switch-over scheme with considering operational environment, maintenance system and an operator. In this paper, therefore, we analyzed various factors - technical, operational and economic - that have effect on system improvement so as to prevent making any mistakes on system improvement.