• 대한토목학회논문집
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• 제35권1호
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• pp.217-227
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• 2015

본 연구는 건설투자 GDP (Gross Domestic Product) 디플레이터 방식의 물가조정이 이루어진 제주특별자치도 내 하수관거정비 BTL(Build-Transfer-Lease)사업에 대하여 물가변동률 적용에 문제점을 파악하기 위하여 실시되었다. 분석 결과, GDP 디플레이터 방식의 기준지수는 고정값을 사용하며 매분기별 물가변동률이 반영되기 때문에 지수조정률 방식보다 물가변동률이 높게 나타나는 것으로 조사되었다. 그러나 GDP 디플레이터 지수가 총사업비에 일괄적으로 적용되기 때문에 현실적인 물가를 반영하지 못함으로써 정확도가 떨어지는 단점이 있는 것으로 조사되었다. 또한 GDP 디플레이터 방식의 기준지수가 고정값을 사용하기 때문에 기준이 되는 시점(정부고시일)이 물가조정에 매우 크게 영향을 미치는 것으로 조사되었다.

• 상하수도학회지
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• 제34권3호
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• pp.191-200
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• 2020

This study is to improve the efficiency of BTL (Build Transfer Lease) project operation by comparing the infiltration rate based on the data of 5 years of infiltration of the separate sewer system and combined sewer system. In the survey site, the separate sewer system area consists of eight flowmeters in seven treatment basins, and the combined sewer system area consists of eight flowmeters in five treatment basins. The infillration rate was analyzed by night-time domestic flow evaluation method, and the average infiltration rates of the separate sewer system and combined sewer system were 13% and 16%, respectively. Combined sewer system was about 1.3 times higher than the separate sewer system. The average BOD of separate sewer system was 233 mg/L, which was about 2.4 times higher than the combined sewer system was 107 mg/L. In the comparison of the average pipe diameter-length infiltration of separate sewer system and combined sewer system, the separate sewer system and the combined sewer system were about 0.150 ㎥/d/mm/km and about 0.109 ㎥/d/mm/km, respectively. The floating population in mixed residential and commercial areas has been identified as the cause. Therefore, we propose a method to calculate the infiltration rate in consideration of the margin ratio in the area where the night active population is concentrated.

• 교육녹색환경연구
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• 제14권1호
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• pp.1-9
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• 2015

정확한 공사비 추정은 성공적인 프로젝트의 개발에 필수적이다. BTL 사업과 같이 민간투자사업에 있어서 정확한 공사비 산정은 효과적인 예산확보와 파이낸싱에 필수적인 기본 정보가 된다. 공사비 견적의 정확도에 따라 입찰과 제안서의 정확도가 반영되므로 프로젝트를 통한 수익성 여부와 사업타당성을 확보할 수 있다. 본 연구는 정확한 공사비 분석과 활용을 위한 기초적인 연구로써 10년 정도 경과한 초 중등학교 민간투자사업(BTL)의 건축공사비를 분석하여 여러 참여주체들별로 공사를 할 수 있는 건축공사의 공종별 분포비율을 학교급별로 파악한다. 즉, 초 중등학교의 건축 공종별 구성비율을 전체 평균비율, 초등학교, 중학교, 고등학교별로 살펴보고 향후 유사한 공사를 수행하는 경우에 참여주체별로 활용할 수 있도록 하고자 한다.

• 한국건설관리학회논문집
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• 제8권4호
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• pp.73-80
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• 2007

2005년부터 사회기반(SOC)시설에 대한 높은 수준의 공공서비스 제공과 필요시설 조기 확충의 일환으로 미국 등의 PFI(Private Finance Initiative)사업을 벤치마킹한 BTL(Built-Transfer-Lease) 민간투자사업이 국내에 도입되면서, 사업초기 재정투자사업 대비 민간투자사업에 대한 적격성 조사(VFM : Value for Money)의 필요성이 부각되었다. 이에 BTL 사업현황을 분석하고 실무자 입장에서 바라본 사업추진단계별 경제성 분석 방식(VFM분석, 추정사업비 산출, 입찰가격평가 등)의 적정성, 개선필요성 및 대안을 분석해보고자 설문조사를 실시하였다. 실무자 직군별, BTL사업 추진단계별, 개선대안별 교차분석과 상관관계분석 등을 수행한 결과, 사업비용 대비 표준화된 서비스 수준과 운영비 산출 및 평가 기준이 마련되어야 하며, 투자 적격성 조사의 정량적 분석(LCC분석)에 대한 필요성을 토대로 운영관리비, 유지관리비 산출 근거도 마련되어야 한다. 또한 업무의 효율화를 위하여 국내 BTL환경을 고려한 신뢰성 있는 경제성 평가 시스템이 구축되어야 하겠다.

• 교육시설
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• 제14권4호
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• pp.34-42
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• 2007

The investment of BTL(Build-Transfer-Lease) projects for the educational facilities has been increased since 2005. However, many trial errors and problems have been occurring due to the lack of inspection criteria in maintenance cost for the lift cycle of the facilities. Thus, purpose of this study is to derive regression equation for the daily inspection and the regular inspection through analysis of CAD data in order to set the inspection criteria. It is possible to calculate economical maintenance cost of BTL project in educational facilities using criteria of inspection time through the regression equation developed in this study.

• 한국디지털건축인테리어학회논문집
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• 제13권1호
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• pp.5-13
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• 2013

BTL business-related systems were developed by the Ministry of Education, Korea Development Institute, Korea Education Development Institute. These systems were effectively support to BTL projects schools that expanding in size. However, compatibility of information is difficult between systems that specific information system developed for the purpose of functional redundancy. In this study, operational readiness, facility management, operations and the assessment phase are divided in the BTL school projects process. And the business functions were analyzed in the related systems. In addition, we are contributed to improve standards and the school BTL business processes to improve the reliability of the process.

• 교육녹색환경연구
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• 제5권1호
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• pp.22-39
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• 2006

The purpose of this study is an overall valuation about propriety study of school facilities BTL(Build-Transfer-Lease) by means of AHP(Analytic Hierarchy Process). The search point includes these questions. Is BTL of school facilities a reasonable project for school, or is the former government financial project on the position of comparative superiority? And, is a partial BTL possible as an alternative plan? The result of this study shows that preference rate about BTL is 39%, that of former government financial project is 32%, and that of partial BTL is 29%.

• 상하수도학회지
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• 제23권1호
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• pp.89-96
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• 2009

Feasibility which is complimented before Social Overhead Capital Project and National Policy Project is analyzed by economic and political benefits. The projects will be performed if the benefits are bigger than the project cost. In this study, feasibility was examined at various viewpoints on sewer rehabilitation projects implemented with private capitals. To achieve the feasibility analysis, the B/C (Benefit/Cost Ratio), IRR (Internal Rate of Return) and the returns ratio of the Build Transfer Lease project implemented in 2007 at W city were estimated. At the same time, the correlation with B/C and benefit sensitivity of concessionary rate fluctuation were analyzed to evaluate the efficiency and feasibility of the seven sewer rehabilitation projects promoted by a local autonomous entity.

• 교육녹색환경연구
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• 제7권2호
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• pp.30-46
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• 2008

In this study, were prepared after statistical analysis was conducted of assessment items and marks distribution for the selection of executors of the BTL project. When tests of the degree of dispersion and degree of appropriateness for each assessment item were analyzed, it was found that the degree of dispersion among assessment points has the power of discrimination since it is highly marked in the design field and operation management field. In contrast, 'business management plan' and 'investment composition for economic quality assessment' have a low level of the power of discrimination since points given to them have smaller difference between business projects.

• 산업경영시스템학회지
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• 제35권3호
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• pp.1-6
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• 2012

This paper aims to suggest a validity analysis model that would be helpful for local governments considering u-City construction projects and a methodology for them to promote build-transfer-lease (BTL) u-City projects. This methodology mainly uses quantitative and qualitative analysis based on the Value For Money (VFM) designed by the Public and Private Infrastructure Investment Management Center (PIMAC) under the Korea Development Institute (KDI). BTL projects requires a large amount of capital and involves long-term investments. Therefore, multi-faceted validity analysis is required for the success of a project. This study will enumerate various factors to be considered in the pre-analysis of validity of BTL projects and suggest a methodology to verify them. A case study of a BTL project promoted by Ansan City assisted in designing this study in detail.