• Proceedings of the KIEE Conference
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• 1995.11a
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• pp.55-58
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• 1995

An optimum design method of electric machines using neural network is presented. In this method, two multi - layer perceptrons of analysis and design neural network are used in optimizing process. A preliminary model of linear induction motor for subway is designed by the electric and magnetic loading distribution method and then optimized by presented method.

• Proceedings of the KSR Conference
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• 2005.11a
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• pp.500-509
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• 2005

Light-rail transit system has many characteristics of better accessibility. frequency service, low construction cost, reduced air pollution and medium-capacity public transport etc. Light rail transit system as a urban transportation system has been growing worldwide since the late 20th century. More than 300 cities around the world have light railway systems. Many medium-size cities in domestic site is planning the construction of light railway. This paper describes the development strategies for the light rail transit industry.

• Proceedings of the KSR Conference
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• 2003.10c
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• pp.424-431
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• 2003

This report was studied about the advanced transit system for operating in oversea country and state of construction in the domestic. And we suggested the improvement policy against the major problems due to delay to operation and construction of advanced transit system in each cities of local self Government.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2009.10a
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• pp.233-234
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• 2009

2012년 상용화가 목표인 국내 위그선 개발은 화물운송과 여객운송에 큰 변화를 가져올 것으로 판단된다. 특히 부산은 일본과의 여객에서 수요가 클 것으로 판단되며 이에 2012년 이후 상용화에 위그선 터미널 등 관계시설을 계획할 필요가 있지만 현재까지 북항재개발계획에 포함시키자는 단순 논의만 있을뿐 뚜렷한 계획이 없는 실정이다. 위그선의 경우 속도가 빨라서 현실적으로 북항지역에 터미널을 생성시 어려움이 있을것으로 판단되며 이에 현재 영도 동삼동 크루즈터미널이 북항재개발 지역에 신규 크루즈터미널이 만들어진 후 여유가 있을것으로 판단되어 이를 활용화할 필요가 있다. 이률 위해 영도 태종대와 롯데월드를 잇는 관광벨트와 부산역과 연계된 열차화물수송을 적극 활용할 수 있게 영도 경전철을 고려해 볼 필요가 있다.

• Current Research on Agriculture and Life Sciences
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• v.31 no.4
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• pp.256-264
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• 2013

This study presents a greening plan for the under space of elevated rail tracks to reducing landscape impairment and improve the streetscape. This study focuses on a section of the Daegu Metro line number 3 that includes a concentration of high-rise apartments and commercial areas. First, different types of planting were categorized for the under space of the elevated rail track, and then images of each planting type were created using a 3D simulation tool to evaluate the visual characteristics. The landscape images and related adjectives were assessed using a survey. As a result, rows of flower trees received the highest evaluation, and 'harmony' was identified as the most important factor affecting the railscape preference. These results can be important data for establishing an efficient greening plan for the under space of elevated rail tracks.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.4
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• pp.551-559
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• 2019

Since 2000, many local governments have been trying to introduce trams because of the government's failure to adopt environment-friendly policies and light rail. However, there is no service evaluation system that can maintain and enhance tram users' convenience, safety, and comfort during operation. In addition, the tram characteristics are not reflected in the application of the evaluation system of "management and service evaluation for public transportation operators" which is being implemented to railway operators or bus transportation operators. The purpose of this study is to develop the evaluation criteria of operating service according to tram operation model. First, we reviewed cases related to the evaluation of operating services in roads, buses, railways, and airways. And the evaluation criteria and the evaluation items are presented. This study is expected to help to secure and improve operational service in the operation phase of the tram that will be introduced in the future.

• Journal of the Korean Society for Railway
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• v.12 no.5
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• pp.772-777
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• 2009

The development of fuel cell hybrid power system, as a next generation power system to promote clean energy which will mitigate the continued global warming, has demonstratd a significant progress in passenger vehicle applications. Also, in case of railway vehicles in non-electrified railway lines, the adoption of fuel cell hybrid power system is being studied among well-known manufacturers. This paper introduces both the configuration and the control strategy of fuel cell hybrid power system to apply to a light electronic railway vehicle having a repeated driving pattern of acceleration, coasting and deceleration. The simulation results demonstrate the viability of the proposed power system design and its control strategy.

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.1556-1562
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• 2011

Recently many disadvantageous problems have been found during the process of domestic LRT(Light Rail Transit) projects and that can influence negative effects on the development of domestic railway. Since many projects have been progressed while having few original technologies, it is no exaggeration to say that they are being built unreasonable railway which lacks economic feasibility. The on-going LRT projects which are being carried out by the central or local government have a tendency to favor the systems and rolling stocks that have been approved by other countries through years of experience, therefore it can be said that we are having few chances to develop original technologies. In this study, we would like to promote railway development and jump up to the level of advanced railway standards through developing our unique and independent future LRT technology.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.2186-2187
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• 2011

승강장 스크린도어(PSD: Platform Screen Door)는 철도, 경전철 및 지하철 승강장 내 추락, 전동차 사이의 끼임 등의 안전사고 방지 및 승강장의 공기오염 개선, 장애인, 노약자 등의 탑승편의에 관한 문제, 승강장내의 쾌적한 환경문제 제공 등을 위해 전동차 승강장의 선단에 고정 및 가동 도어를 설치하여 승강장과 선로를 차단함으로써 이용 고객의 안전사고를 예방하는 설비를 말한다. 국내 업체들은 기술 투자를 통해 종합 제어반 및 각종 조작반, RF장치 등 상당 부분 국산화를 이루었지만, 짧은 기간 동안 승강장 스크린 도어를 설치하면서 승강장 스크린 도어 시스템의 핵심이라 할 수 있는 승강장 스크린 도어용 제어장치(DCU: Door Control Unit)의 완전한 국산화는 이루지 못한 채 외국 제품을 도입하여 설치하고 있거나 DC 모터를 적용한 제어장치를 개발하여 설치하고 있는 실정이었다. 본 연구에서는 BLDC 모터를 적용한 제어장치를 국산화하여 시제품을 제작하였고 월미도의 은하레일에 제어기를 설치하여 성능을 검증하였다.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.8
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• pp.851-860
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• 2015

Transport Social Overhead Capital refers to public utilities necessary for a nation's basic economic activities, and is divided into roads, railway, subway, ports and so on. It is important to be able to provide these SOC in the right place at the right time to enhance productivity and competitiveness of a nation. In this study, correlation and factor analysis on countries' socioeconomic and transport indicators were performed in order to understand the need for expansion of SOCs including railway, and to identify the impact they have on national competitiveness(productivity). As a result, GDP showed high correlativity(0.59~0.99) with factors such as population, land area, extension of available railroad, and road extension. Specifically, through the analysis of Russia's urban transport system and comparison between socioeconomic indices and SOCs of OECD countries, it was examined that how increasing transport infrastructure investments could enhance national competitiveness. In conclusion, opening new Light Rail greatly affects the growth of GDP followed by the increasing extension of available railroad. Furthermore, if available railroad extension is increased by 10 % from 2014, assuming high speed tram is opened, GDP will likely increase by 21.6%.