• 한국대기환경학회지
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• 제29권5호
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• pp.625-633
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• 2013

This study attempted to find an alternative method for fine dust control in the pre-exiting facilities of metro-subway stations. A new double-layer design was proposed for the MVAC (mechanical ventilation and air control) system. Several filter lay-outs were combined a pre-filter with electret filter (EF), electret bundle filter (EBF), or electret pleated filter (EPF), and were then examined focusing on the collection efficiency of particulate matters and pressure drop across the filter layers. The experimental results from the lab and field tests showed the best collection efficiency with EPF, which achieved 85% for $PM_{10}$ and 55% for $PM_{2.5}$. It was also found from the long term field test that the new filter lay-out could provide quite consistent dust level particularly in underground platform regardless of external condition.

• 한국재난정보학회 논문집
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• 제13권3호
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• pp.322-331
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• 2017

본 연구는 한국건설기술연구원(KICT)에서 제시한 토목공사용 정보분류체계(Information Classification System)를 기반으로 지하철공사의 정보분류체계를 제시하였다. 그리고 이 기준을 근거로 NAS(Network Analysis System) 운영체계인 공사정보분류체계 - 공정도표 - 작업별 투입 자원을 연동하는 데이터 모델링을 구축하여 통합 모형을 제시하였다. 따라서 본 연구에서 제시한 데이터 모델링의 통합모형은 다른 토목시설물공사에서도 동일한 절차와 방법으로 적용할 수 있어, NAS를 기반으로 한 공정관리 과학화를 유도할 수 있을 것으로 확신한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1478-1485
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• 2011

이 기술은 지하철 역사 특성상 천정판 개방이 수반되는 보수공사와 각종점검이 수시로 이루어지고 있는 바, 잦은 탈 부착으로 천정판이 쉽게 탈락 및 훼손되어 역사 유지관리에 어려움이 발생되고 있는 문제를 해결하기 위해 천정판의 설치 방법을 고정방식에서 탈피하여, 일부분을 미닫이 방식으로 개폐할 수 있도록 설치함으로서 천정판의 탈 부착으로 인한 훼손을 방지하고 내구성을 증대시켜 역사 천정판 교체공사 주기를 연장시키고 이에 따른 유지관리 비용 절감 효과가 있는 천정판 시공방법을 제시코자 함.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2217-2224
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• 2011

The railway industry has well developed with Korea's economic growth as follows - Industrial railway's electrification in 1973, Seoul subway opening in 1974, Busan subway opening in 1985, High speed railway opening in 2004. But LRT as city transportation means has been faced with many difficulties. Looking at the LRT projects implemented until now, there are some issues like the transportation demand, the quality & safety of RS and facilities, the poor management of inhabitant complaints and the failure to maintain policy coherence. They have caused not only the project schedule to extend but also the project costs to increase, even to obstruct the project progress itself in some cases. These risk factors become the obstacle of LRT project's success, but it is said that more basic problem is the lack of risk management capability of competent authorities in railway business. Under these circumstance, Railway specialized Authorities and Local government have cooperated to identify various risk factors and to prepare the measures in advance, so we try to introduce this cooperation case, which will help other local government as an useful reference.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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• pp.113-114
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• 2017

Recently, Subway workers have died from lung cancer. According to the Epidemiological Survey of the Welfare Corporation Institute of Pulmonary Disease of the Welfare Corporation, the family members applied for industrial accidents. The radon concentration in the subway work area was found to exceed 10 times the recommended standard value of 148 becquerels (Bq/㎥) in domestic multipurpose facilities. In addition, as a result of the national indoor radon concentration survey conducted by the Ministry of Environment in 2010 and 2013, housing was found to be over 100 becquerels (Bq/㎥) in 41% of the surveyed subjects. In addition, it was found that in 2012, 16.3% of villages exceeded the radon standard value in the survey on natural radioactive materials containing groundwater.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.2108-2115
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• 2008

Using transportations like railway, aviations and roads has been increasing continuously. Traffic accidents have been increasing as well. To prevent or lessen these accidents become a big issue to solve. Therefore, more enforced safety levels are being required to meet. In railway field, continuous efforts of railway safety are being executed to prevent traffic accidents. In present, a railway accident has been decreasing since subway accident happened in Daegu Subway in 2003. However, safety levels in railway field have not yet achieved as much as in advanced countries. Basic concept for enforced safety level in railway system is to prevent or minimize accidents by managing systems like related facilities, management method, organization, education. This is the same concept to minimize error rate in six sigma theory. In this paper, we are to apply six sigma techniques used in manufacturing industry to railway safety and go through ways to make more efficient railway safety system.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.645-656
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• 2008

The operation of express train on the Seoul Metropolitan Subway Network is centered on the Kyungbu and Kyungin lines and the short section between Dongducheon station and Ganyung station which is 20.7km long. It is true that the needs of many customers who want to reduce their commuting hours by express train is not satisfied. This paper proposes that the operation of express trains be enlarged to Sungbuk station on Kyungwon line which comes to 34.9 km long, and to Yangsu station from Youngsan station on Jungang line. The type of operation is mixed one with high and low speed trains, which operates express train by use of existing siding tracks without improving facilities such as extra building of sidings. This pragmatic study is to apply the goal of reducing running time as express train and to suggest the selection of appropriate stops, effectivenes analysis of express train operation and formation of train diagrams to actual operation.

• 한국철도학회논문집
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• 제14권4호
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• pp.313-319
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• 2011

현대사회는 많은 교통수단이 이용되고 있으며, 그 중 수도권 도시철도는 하루 평균 721만명이 사용하는 중요한 교통수단이다. 실내공기질에 대한 관심과 PSD의 설치로 인해 터널내공기질 문제에서 객실내 공기질로 이동하고 있다. 하지만 현재 객실내 공기질 향상을 위한 장치는 전무한 상태이며 기존 에어필터 기술 적용시 설치비용과 유지보수가 문제점으로 지적되고 있다. 연구의 최종목표는 미세먼지와 이산화탄소를 효과적으로 저감시킬수 있는 독립형 청정장치를 개발하는 것이고, 본 연구에서는 미세먼지 저감기능을 수행하는 롤필터 집진 장치개발을 목적으로 한다. 객실내 롤필터 집진장치를 설치할 수 있는 공간에 대해 조사하고, 이에 따른 도시철도 객실 먼지저감에 효과적인 시스템 구조를 제시하였으며, 적정 풍량을 산정하다. 유동해석과 먼지저감효율에 대한 수치해석적 연구를 통해 최적운영 조건을 분석하였다. 그리고 롤필터에 적용가능한 필터재질에 대하여 차압특성과 입자포집효율을 평가하여 객실 유닛에 가장 적합한 필터를 선정하였다.

• 한국멀티미디어학회논문지
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• 제24권2호
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• pp.312-319
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• 2021

This study aims to help users to have a more satisfying encounter based on the problems found by comparing and analyzing similar applications. That is, an application that derives intermediate points through the subway, which is a public transportation means, and provides information on nearby convenience facilities was proposed. The middle point calculation process uses the dijkstra algorithm, which stores the minimum number of nodes in the stored path from the first input location to the last location. The stack and arraylist are used to search all paths from the first input position to the last position, and then the path with the smallest number of nodes is selected. After that, the number of stations in the route is divided in half and the resulting station is output. In addition, this study provides information on convenience facilities near intermediate points in order to have differences from similar applications. It categorizes within a 1km radius of the point and provides a function that helps to conveniently identify only facilities around the middle point. In particular, by visualizing the number of convenience facilities with radar charts and numbers, it is possible to grasp the commercial district around the midpoint at a glance.

• 한국실내디자인학회논문집
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• 제26권3호
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• pp.101-112
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• 2017

Based on an analysis of the characteristics of "Ecute" of the East Japan Railway Company (JR East) that planned the world's first large scale commercial facilities inside a ticket gate (paid-area including waiting room and platforms), the present study proposes a brand development of commercial facilities inside aged railway stations, where only basic railway business have been provided focusing on passenger transportation, by renewing the definition of railway commercial facilities and presenting a detailed planning and the direction of the operation system. A list of practical tasks that can be carried out in academia, planning and operation / management to facilitate the revitalization of the use of commercial facilities inside railway stations are as follows: 1) the setting of a wide scope for the revitalization of railway commercial facilities around the railway station focusing on private-funded stations in addition to existing stations; a setup of the direct scope of commercial development in the practical railway operation for passengers and stations in terms of external research, and a corresponding shift in thinking in terms of internal research 2) development of under used spaces such as the transfer area (Gongdeok Seoul Wangsimri Station are first target stations where more than four subway lines intersect) 3) brand establishment through improvement strategies for image and symbolism specialized for railway stations 4) rent of suitable business stores and layout of commercial facilities by analysis of passenger move pattern 5) development of commercial facilities which can attract customers by displaying various products, as well as finding a way to develop them in to a base facility that connects to local infrastructures 6) providing advertisement and management system for continual maintenance, and 7) brand specialization through unique storytelling and design plan that stimulates sensibility. The above study results can be utilized as a starting point for design brand awareness about commercial facilities in railway stations in Korea, which can be developed further to improve station image and passenger convenience, as well as to increase the revenue of railway businesses.