• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.42-49
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• 2022

In recent years, Owner, Architects, and Contractor are increasingly collaborating with each other from pre construction phase in construction projects, which is called Early Contractor Involvement (ECI). In Japan, the ECI method has been introduced in several public building projects since 2015. The purpose of this study is mainly to clarify the characteristics of the ECI method in Japan and to compare the contract clauses of the ECI method in the UK and the USA. The results of the survey are as follows. (1) the ECI method was supposed to make it possible to achieve appropriate quality, cost, and construction period by reflecting Contractor's technology and know-how in the design documents and specifications. (2) According to the database, there were 27 cases of the ECI method in Japan from 2015 to 2021, of which 13 cases for which bidding information could be obtained had a variety of technical proposals, mainly VE proposals, depending on the project characteristics. (3), Japan's ECI method has very much in common with SBC + PCSA in the UK. On the other hand, ECI Method in Japan differs from in the UK in that Owner, Architect, and Contractor enter into a partnership agreement, which is similar to ConsensusDocs CD541 in the USA. (4) The ECI method in Japan has the following problems: Owner depends on Contractor for cost control, the division of roles among project members is complicated, and more work from Owner than the DBB method are required.

• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.153-158
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• 2017

Procurement system of public construction projects in Japan is changing with diversity in rapid pace. The quality assurance and risk management of construction projects should be more certain as the projects are turning into larger scale and more complexed. The clients in the public sector will want to make the relation of responsibility among the client, the designer (architects and engineers), and contractor clearer in terms of role and risk. Public-Private Partnership (PPP) is one of the methods for collaboration of the public sector and the private sector in public construction projects where the public utilizes the ability and suggestion of the private. Private Finance Initiative (PFI), Design-Build-Operate (DBO), market testing, designated manager system, outsourcing of tasks in local governments are well-known as examples of PPP in Japan. Indeed, there is an obvious trend that Design-Build (DB) is adopted in public construction projects in many countries including Japan. In this paper, the public construction projects in various procurement systems are surveyed and analyzed. They are not limited within the traditional procurement, Design-bid-Build, a separate order system of design and construction. Design-Build or PFI are adopted. In particular, contract by wide range including maintenance of equipment can be found. On the other hand, modification from originally typical PFI is taking place, such as concept design and project finance are removed from the roles and the tasks of the special purpose company (SPC) in PFI. Standard roles and tasks in a construction project are modeled in this paper.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2005년도 학술발표회(1)
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• pp.802-803
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• 2005

• 디지털융복합연구
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• 제6권1호
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• pp.11-19
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• 2008

The Bidding System of the public IT project in Korea is fallen behind, because of the ordering habitual practice based old system, overcompetition based sealed bid and subcontract practice. To innovate this old-fashioned practice for public IT project bidding, this paper wants to generate a proper improvement direction of the public IT project contract law and the related policy through the literature review about the ordering and receiving system in Korea, the practical survey about bidding marketplace in Korea, and competition between bidding system and/or policy of major countries: USA, UK, France and Japan. As a result of practical survey, many problems of the current public IT project bidding system came out and improvement ideas toward future situation turned up. These outputs implicate that the current law and system related public IT project demands better improvement work for the future ubiquitous Korea. Therefore, this paper, to solve these problems about bidding systems and practice, propose the new public IT project contract law and the related policy, reflecting these improvement ideas by the practical survey and the literature review, and benchmarking points from bidding system of other countries.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 추계학술대회 논문집(I)
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• pp.465-470
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• 2002

Construction of Yamanashi Maglev Test Line in Japan was proceeded based on "superconducting maglev Yamanshi Testline plan" approved by Ministry of Transport Government of Japan in 1990, which was performed by Yamanashi Maglev Test Line construction project team organized by personnel of Japan Railway Construction Public Corporation, RTRI and Central Japan Railway Company, and overall adjustment test was performed. Yamanashi Maglev experimental project team was organized, sponsored by RTRI and Central Japan Railway Company from April in 1997. Running test for the application was performed by this project team. Technical availability was proved by "superconducting maglev committee" of Ministry of Transport Government in March, 2000. In this paper, train radio system by LCX and by millimeter wave will be reviewed.

• 한국도서관정보학회지
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• 제44권3호
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• pp.309-333
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• 2013

학교도서관의 역할을 보완하기 위한 하나의 방안으로 타 관종, 그 중에서도 특히 공공도서관과의 협력체계 구축을 통한 역할의 강화가 활발히 논의되고 있다. 본 연구에서는 일본의 협력형 운영사례를 살펴보고 한국의 적용가능성을 고민해보고자 했다. 이를 위해 일본의 학교도서관과 공공도서관의 협력화 사업의 현황을 알아보고 그 특징과 문제점에 대해 논의하였다. 첫째, 일본학교도서관의 인적 시설적 현실을 살펴보고, 관련정책을 정리하였다. 둘째, 학교도서관의 협력 현황을 전체적으로 조망해보고, 정부적 차원의 협력사업과 지자체차원의 협력 사업으로 나누어 분석하였다. 마지막으로 일본의 협력사업의 특징을 정리하고 우리에게 주는 시사점에 대해 고민하였다.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.849-854
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• 2005

After participation in the Colombo Plan in 1954, Japan has provided Official Development Assistance (ODA) to 185 countries and areas, and the accumulated amount of Japan's ODA is approximately US$ 221 billion for 50 years. Japan is the second largest ODA donor country in the world now. The country is contributing to the peace and development of the international community. However, the recipient government and the parties concerned are not always satisfied with the Japan's ODA system.. Especially the grant aid system is strongly based on the domestic public work system. This paper analyzes the problems and figures out solutions from the viewpoint of donor and the participant.

• 가정과삶의질연구
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• 제30권4호
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• pp.133-146
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• 2012

Community building in Japan, called Machizukuri, has been in existence since the 1960s, and many successful cases are referred to by researchers and public service officials as benchmarks for creating livable cities and towns in Korea. The purpose of this study is to identify the building factors for a sustainable community and to suggest implications through the cases of machizukuri in Japan. Based on the literature review related to the research topic, on-site visit case study was used as the major research methodology. Four cases -Setagaya, Kawagoe, Motomachi, and Manazuru- were selected as the research subjects and interviews with the representatives of the community(resident) council and public officials were conducted during October 19-22, 2011. The project overview, purpose, and planning characteristics of each case were described for data analysis. The major findings are as follows. Although most of the machizukuri in Japan were administration-dependent at the beginning stage, the case projects in this study showed resident-independence (self-support) from the perspective of sustainability. The results showed that successful community building is an everlasting project that requires cooperation among personnels including residents, civic officials, and related council members.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.30-37
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• 2020

In the building construction, the steel-frame work occupies an important position in terms of structure, cost and quality. Especially in Japan, steel frames have traditionally been the main structure of many buildings. For steel-frame works in such positions, this paper investigates an existing steel fabricator to clarify the actual conditions of design decision making process and management method in steel production process. This study focuses on a steel fabricator (Company M in the following sentences), whose main market is Japan and which has facilities in Thailand, China, and Japan. Company M uses QR codes to control the production status of products, and exchanges all information between inside and outside the company via specialized departments in the form of documents. The authors have already analyzed the relationship between production lead time and defect rate based on actual project data at Architectural Institute of Japan in 2016. In 2019, we expressed the process from the confirmation of the design information of the current steel frame to the production by WBS, and clarified the relationship between the production lead time and steel frame product quality structurally. In this paper, the authors reoport the progress of the survey conducted so far, the positioning of the collected data, and the future survey policy.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.659-663
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• 2001

In Japan, the municipal solid waste, which amounts to 50 million tons, is generated every year and most of it is incinerated. The bottom and fly ashes are disposed to the registered disposal areas under the provisions of The Waste Disposal and Public Cleaning Law. Especially, as the fly ash from the municipal waste incineration (the primary fly ash) contains heavy metals (lead, zinc, etc) and dioxins, it cannot be disposed directly without decontamination, such as moiling, cementation, chelating and dissolving processes provided in the law. However, these procedures for decontamination, except melting, are not enough for dioxins. Even in case of melting, the fly ash from the process (the secondary fly ash) contains high concentration of heavy metals (e.g., Zn; 1-20%, Pb; 1-10%). For these reasons, Metal Mining Agency of Japan (MMAJ), a governmental organization, started a four-year project to develop the treatment technologies of these fly ashes in 1999. The purpose of the project is to establish the integrated technologies to recover the valuable metals from, and to decontaminate, the primary and secondary fly-ashes in the practical scale by utilizing the existing metallurgical processes and facilities, along with the energy saving and the reduction of the environmental impact.