• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.21 no.3
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• pp.193-198
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• 2003

The population is increased in the area of a subway station because the accessibility of passengers is improved. Therefore, facilities for commercial purpose are concentrated in this area. To develop the station area as the center among the most urbanized area, overall mater plan should be constructed far the station area. This study was to construct web server for management a variety of 3D spatial object database of station areas using GIS and web 3D technology. These results will be used to manage efficiently a urban space by the connection of a subway station and a adjacent facilities.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.15 no.1
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• pp.21-28
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• 1997

Since beginning of subway construction in 1974, for supplying the demand for increasing urban traffic and solving the traffic jam due to expansion of society and elevation of an individual income, the $1^{st}\;and\;2^{nd}$ construction have been almost done and $3^{rd}$ has been driving forward. However, according to an increment of com-mon usage with the passage of time, structures are superannuated and the amount of improvement and repairs keeps on increasing continuous. And many problems are taking place at underground space because of new constructions for underground facilities such as urban gas, electric power, waterworks, and sewerage. In consequence. The consideration of a counterplan for safety is required deeply This study analyzed problems on maintenance of structure about $1^{st}$ class subway, and will present means that a manage civil structures scientifically and systematically by using GSIS concept that imported into several organizations for facility management recently as making digital graphic elements and historic data into a database rather than using an old method - documents and paper drawings.

• Journal of the Economic Geographical Society of Korea
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• v.14 no.2
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• pp.116-128
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• 2011

Some subway passengers may want to have their fresh vegetables purchased through internet at a service facility within the subway station of the Metropolitan Seoul subway system on the way to home, which raises further questions about which stations are chosen to locate service facilities and how many passengers can use the facilities. This problem is well known as the pickup problem, and it can be solved on a traffic network with traffic flows which should be identified from origin stations to destination stations. Since flows of the subway passengers can be found from the smart card transaction database of the Metropolitan Seoul smart card system, the pickup problem in the Metropolitan Seoul subway system is to select subway stations for the service facilities such that captured passenger flows are maximized. In this paper, we have formulated a model of the pickup problem on the Metropolitan Seoul subway system with subway passenger flows, and have proposed a fast heuristic algorithm to select pickup stations which can capture the most passenger flows in each step from an origin-destination matrix which represents the passenger flows. We have applied the heuristic algorithm to select the pickup stations from a large volume of traffic network, the Metropolitan Seoul subway system, with about 400 subway stations and five millions passenger transactions daily. We have obtained not only the experimental results in fast response time, but also displayed the top 10 pickup stations in a subway guide map. In addition, we have shown that the resulting solution is nearly optimal by a few more supplementary experiments.

• Geotechnical Engineering
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• v.17 no.12
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• pp.26-35
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• 2001

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.1953-1959
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• 2011

Subway stations have a characteristic that the facilities in the ceiling should be checked, replaced and expanded frequently. The new installation of supports (steel anchors) for new facilities and workers moving-around in the ceiling result in the damage in the ceiling finish material and concrete structure which also result in construction cost increase. In addition, the noise, vibration and dust generated during the work harm the station environment. There are civil complaints on these which give difficulty to ceiling works. Accordingly, this study suggests a ceiling frame construction method that considers the convenience, economy and efficiency of ceiling work by improving the support installation method for facilities in ceiling.

• 정보화사회
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• s.111
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• pp.57-60
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• 1997

"GIS가 만들어지면 행정 및 국가전략기획, 사회조사 계획 등을 효율적으로 추진할 수 있다. 예를 들어 대구지역의 도시계획을 입안할 경우 지하철, 전화선, 전기배선망, 상.하수도, 도시가스 등을 한눈에 보면서 종합적인 일정을 마련할 수 있다. 대구시에서 구단위 동단위를 확대하면 불과 1cm 단위의 거리에 위치한 정보까지도 검색할 수 있다. 이 시스템이 진작 만들어졌다면 이번 대구 대형참사를 사전에 예방할 수 도 있었을 것이다." 이는 대구지하철공사장 가스폭발사고가 발생한 후 어느 신문에 게재된 기사중의 일부이다. 이 사고를 바라다보는 대부분의 전문가들은 GIS를 구축해야 한다고 말했다. 어떻게 들으면 GIS가 구축되지 않아 이러한 사고가 발생했다고 하는 말과 같이도 들린다. 이 기사는 사실 틀린 말이 아니라고 생각한다. 그러나 이 기사내용을 찜찜한 마음으로 쉽게 받아들일 수 없는 'GIS가 만들어지면'이라는 말 때문이다. 이런 찜찜한 마음이 어디에서 오는 것일까? 여기에서는 우리나라에서 지리정보시스템을 이용하여 도시지하시설물 관리체계를 구축하는데 어떤 문제가 있고, 지리정보시스템이 도시지하시설물 관리에 어떤 역할을 할 수 있는가를 살펴보고자 한다.

• Journal of the Korean Geotechnical Society
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• v.37 no.9
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• pp.37-50
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• 2021

Recently, due to the expansion of urban infrastructure using underground spaces in urban areas, many adjacent constructions and excavations have been made carried out between existing facilities, and complaints related to the stability of existing facilities due to close construction have become significant issues. In this study, it was closely reviewed for the existing metro tunnel structure in the new Dongbuk urban metro railway to determine the behavioral characteristics of tunnel structure according to adjacent tunnel construction. Also, it was analysed the evaluation of the safety zone and excavation method for metro tunnel structure. And after a detailed damage assessment, track irregularities and structural calculation by using a numerical analysis, stability of the metro tunnel structure according to nearby tunnel excavation was evaluated to be secured for safety. This study is expected to be applied as practical reference to review the evaluation of safety effects of existing tunnel structure and buildings according to adjacent construction in complex deep urban tunnelling.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.28 no.6
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• pp.425-432
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• 1999

국내의 경우 소방시설을 설치하여야 할 소방대상물과 그 설치 및 유지에 관한 기준은 소방법에서 정하고 있으며, 그 내용은 표 1과 같다. 지하철과 같은 궤도차량용 터널인 경우 소방법 상의 시설물에 대한 규정을 두고 있지 않다. 따라서 화재가 발생할 경우 피난, 구조 및 소화활동 등이 적절히 고려되지 않은 상태에서 팬의 제원과 성능이 결정되고 있다. 적절한 환기설비를 갖추지 않는 경우에 화재발생시 대형 인명사고가 발생할 가능성이 높다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2009.04a
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• pp.307-308
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• 2009

지하공간은 지하철, 지하도, 지하상가 등 이미 생활의 일부로서 많은 시민들이 이용하고 있다. 최근에는 지하공간의 이용이 더욱 복잡해지고 대형화 되면서 안전에 대한 우려가 커지고 있다. 복합적인 이용공간으로 자리매김하였으나 지하공간의 관리와 지하공간에 대한 관련법 등은 아직까지 지상의 시설물들을 기준으로 한 지하공간의 특성을 반영하지 못한채 머물러 있다. 본 연구에서는 이러한 문제점을 진단하기 위하여 지하공간의 안전한 관리를 위해 관련 법령들을 고찰하여 문제점을 분석하였다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.3
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• pp.617-624
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• 2015

The conflict of opposing pedestrian traffic-flow in a subway station(made up of stair, passageway, and escalator) diminishes the convenience and mobility of its users. In addition, the station's efficiency would be negatively affected by the growth of delay and queue length in pedestrian facilities. As these phenomena have been resulted by the overlapping in pedestrian's traffic-line, the separation of it would alleviate these problems. For the criteria and methodology of separation, this paper has investigated the bi-directional queue length and delay on the entrance of each facility (stair, passageway and escalator). Since the pedestrian flow exists bidirectionally, we have used the weighted average by inflow rate for the delay value. For the optimization of the separation, the Genetic Algorithm has been utilized in order to minimize the delay.