• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.446-449
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• 2001

A LLU system is developed for efficient use of existing local loop. By this system, new entrant ran use the local loop indifferently comparing with incumbent telecommunications operator. To implement the LLU, bottom-up typed LRIC model by network redesigning was accepted for costing system in Korea. In this paper, local loop redesigning methodology is presented to build a bottom-up typed LRIC model.

• Korean Journal of Construction Engineering and Management
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• v.16 no.1
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• pp.119-128
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• 2015

Domestic dominant method in subcontract cost estimate for comprehensive program management is estimation by referencing similar cases or relying on the experience and expertise of the engaged. However, this method is not reliable due to lack of accuracy, making it harder for clients to plan and budget the program. Since budget itself is roughly estimated, it becomes a source of cost rise in the course of management due to design modifications. Therefore, the client and service providers shall calculate more accurate service cost by applying objective and scientific method in order to minimize cost rise and cost related dispute. Traditional cases, in estimating program management cost, took Top-Down approach based on precedents and experience. On the contrary, this study will categorize management structure into phases and activities, issue WBS for each phase to estimated schedule and cost for each code, and take Bottom-UP approach. By taking this approach named ICEP (Integrated Cost Estimate based on Project), Set project typical model will be developed for service cost estimating, calculate cost by applying project-specific factors. Also, by analyzing progress data and allocated management cost to complement them, more efficient construction management will take shape based on program management cost standards which reflect project-specific features.

• Journal of the Korean Institute of Landscape Architecture
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• v.51 no.1
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• pp.13-28
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• 2023

This study examines the process of project promotion in Busan, which introduced the private participation-type consultative body for the first time in the country in the promotion stage of the private-initiated park development project, and introduced flexible application of the system and differentiated policy elements in the implementation process, and examines the operational characteristics and we tried to analyze performance, etc. As a result of the analysis, first, the preferred bidder was selected by introducing a mixed method in the project method, which is an independent project method that cannot be seen in other local governments. Second, by specifying guidelines considering the characteristics of each park and detailed guidelines such as the location, area, and maximum height of non-park facilities, criteria for establishing a rational development plan utilizing regional identity and the basis of evaluation standards were laid. Third, in the project process, transparency was secured through the delegation-type roundtable, in which the private sector performs the functions and roles of key actors, thereby preventing disputes such as suspicion of preferential treatment. Fourth, in order to improve the quality of park facilities to be donated and to secure design adequacy, after approval of the implementation plan, a general planner was introduced and construction project management (design stage) services were performed to promote efficient implementation and specialization of luxury parks in the region. As a result, the city of Busan carried out the project efficiently by conserving 5 parks from sunset, a park area of 2.25km², and reducing land compensation and park construction costs by KRW 740 billion. Reinforcement of the public nature of the private-initiated park development project was suggested. However, due to the application of these systems and verification procedures, the project period is prolonged, and park services are delayed along with the financial burden on private operators.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.439-442
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• 2021

가상현실은 제4차 산업혁명 시대 신산업으로 꼽히는 기술 중 하나이다. 본 연구에서는 가상현실 공간설계의 교육적 가능성을 확인하고 교육적 활용을 위한 툴로서 3D 컴퓨터 그래픽 제작 소프트웨어인 블렌더와 3D 객체를 웹에서 쉽게 렌더링해주는 자바스크립트 라이브러리 three.js를 이용한 건축 내외장재 시뮬레이션 프로그램의 프로토타입을 개발 및 제안하였다. 본 연구에서 제안한 방식으로 학습자들은 자유도 높은 가상공간 공간설계가 가능하여 조형놀이의 형태로 학습을 즐길 수 있을 것으로 기대된다. 후속 연구로는 본 연구에서 구현한 프로토타입과 같은 방식으로 가상현실 공간설계 시뮬레이션을 할 수 있는 교육 프로그램 개발 및 효과성 검토를 실시할 것을 제안하였다.

• Korean Journal of Construction Engineering and Management
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• v.10 no.4
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• pp.38-49
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• 2009

In public project market, design-build projects have been increased because of market trend change which enables technical competition. In this condition, its importance is also getting important. Generally, life cycle of design-build project consists of planning, preliminary design, procurement, contract, detail design, start of construction, construction, end of construction, and evaluation. From contractor's viewpoint, it has problems such as difficulties in project management and information sharing because of frequent change of charged division. To solve these problems, it is desirable to change from function-based management system to process-based management system. The purpose of this study is to develop management process model for design-build project by progress phases. This study analyzed main conflicts and decision making factors of each stage in design-build projects, then systemized management subjects' responsibilities and management points' change. And also this study defined the key information that is the key point by project characteristics and progress phases. Based on this analysis, this study did business process modeling from planning stage to construction design check stage. At last, we proposed the way to manage business process by design-build project progress.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.4 no.2 s.7
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• pp.33-43
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• 2005

In autumn 2000, the Korea Ministry of Construction and Transportation (MOCT) announced that Daejeon metropolitan city, Jeonju and Jeju were chosen to showcase deployment of Intelligent Transportation Systems(ITS). The program called the Advanced Transportation Systems Model Deployment Initiatives makes a significant step in Intelligent Transportation Infrastructure (In) in Korea. The Initiative is poised to increase the performance and efficiency of the area's roadway and transportation systems to meet growth demand. Three citie's $\$$50 million Model Deployment Initiative project is poised to increase the performance and efficiency of the area's roadway and transportation systems to meet growth demand. The effort particularly focused on the traveler information systems that should raise the level of ITS awareness in Korea. In this paper, project management, funding, private investment, procedures and detailed review of ITS Model Deployment Initiatives are discussed.

• 보일러설비
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• s.61
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• pp.56-63
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• 1999

태양열 이용은 대체에너지자원 가운데 가장 널리 분포되어 있고 기술력에 따라 얼마든지 사용할 수 있는 태양열에너지를 그 대상으로 하고 있기 때문에 자연친화적이며, 친환경적인 접근방식으로 기술 개발 및 이용보급 정책을 함께 추진해야 할 것이다. 건물에너지 절약 기술도 국가에너지수요의 $30{\%}$이상을 차지하는 광범위하고 다양한 건물에너지 수요를 효율화하고 절감하는데 그 목적이 있으므로 기존의 건물에너지 이용방식의 문제, 효율개선방안, 그리고 신기술개발 및 환경친화적 건축설계등 기술 개발과 건축관련 정책을 병행 추진해야 그 효과를 기대할 수 있다. 따라서 기술개발 계획 수립, 연구개발 수행, 기술 이전 및 상용화 그리고 실용화 보급정책 시행의 전과정에 걸쳐 상호 보완적이고 체계적인 운용으로 효율을 극대화하고 파급효과를 높일 수 있을 것이다. 본 논문에서는 국가 에너지기술개발 10개년 계획의 목표와 틀 안에서 대체 에너지 기술 개발사업과 에너지 효율향상 기술개발 사업에 포함되어 있는 태양열 이용과 건물 에너지 절약기술에 관련된 프로그램들을 중심으로 효율적 운영방안 등을 검토하고자 한다. 또한 각각의 프로그램들이 가지는 특성과 연관성을 검토하여 추가 보완사항이나 정책대안을 제시하고자 한다.

• Bulletin of the Korea Photovoltaic Society
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• v.4 no.2
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• pp.62-70
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• 2018

대한민국 정부는 '재생에너지 3020 계획'에 따라 2030년까지 재생에너지 발전 비중을 20%까지 확대하겠다는 방침을 세웠다. 목표 달성을 위한 태양광발전은 30.8GW을 신규설비로 확보해야 하지만 신재생에너지를 설치할 수 있는 공간은 한정되어 있어 추가적인 공간이 문제가 된다. $297km^2$의 건물 부지를 소관하고 있는 군(軍)은 공공기관 중 가장 넓은 부지를 보유한 단일 기관이다. 이러한 군 유휴공간을 활용한 민간투자방식의 태양광 발전사업 경제적 타당성을 연구하였다. 본 연구에서는 경제적 효과를 RETScreen을 통해 분석하였고, 그 결과 내부수익률(IRR) 10.7%로 경제적 타당성이 입증되어 민간투자의 사업성을 확인하였다. SWOT분석 결과에 따르면 군 태양광 BOT사업은 전력 모니터링 및 유지보수 등 사업 전 과정에서 보안 요소가 발생하지만, 강한 규제의 산지 및 임야의 대안으로 표준화된 군사시설이, 한 번의 설계로, 유휴공간에 대량 설치가 가능한, 모듈화의 이점을 가지고 있었다.

• Korean Journal of Construction Engineering and Management
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• v.9 no.2
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• pp.136-145
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• 2008

Recently the Ministry of Finance and Economy of Korea launched two new project delivery systems called "Best Value Contract (Design-Bid-Build)" and "Bridging Contract (Design-Build)" in October of 2007 by revising enforcement ordinances of "Act on Contracts to Which the State is a Party". These project delivery systems require the bidders to submit technical proposal adjusted to the project characteristics and objectives for selecting the contractor by evaluating technical proposals. This research aimed to suggest guideline to effectively operate the project delivery systems described above. To reach the goal of the research, the framework of the operation model was developed, which includes the four categories: the standard bidding process, the technical proposal requirements, the technical proposal evaluation criteria, and the award methods. The contents of the four categories above were fulfilled throughout conferring with the advisory experts. In particular, the award methods, which are the important decision-making factor in the perspective of the owner, consist of four types: Low Bid-Fully Qualified, Weighted Criteria, Adjusted Bid, and Adjusted Score. The quantitative features and application criteria of these four types of award methods were suggested throughout the simulation using the virtual case.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.5D
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• pp.665-675
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• 2008

The objective of this paper is to provide an approximate cost estimating model for tunnel that can be utilized both in quick construction cost estimating for design alternatives, and in evaluating efficiently the cost effects according to the environmental changes during design and construction stage. To meet this requirement, this study analyzes critical cost factors influencing tunnel construction costs. The cost factors include 7 elements such as rock drilling method, advancing method, type of detonator, loader capacity, unit weight and soil volume change factor, length of tunnel. This paper investigates the cost variance according to the change of the cost factors. The result is expected to be used in formulating approximate tunnel cost estimating model.