• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.398-401
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• 2009

민간 주도형 사회간접자본 (social overhead capital :SOC) 사업은 BOT(build-operate-transfer)를 비롯하여 대상 프로젝트의 정부 정책 등의 여러 환경의 변경에 따라 다양하게 변형되어 적용되어 BTL(build-lease-transfer), BOO (build-own-operate)등의 여러 기법들을 사용된다. 민간 SOC 사업은 프로 젝트의 규모와 장기에 걸친 공사의 불확실성 때문에 프로젝트의 경제성 분석을 하는 것은 복잡하다. 일반적으로 사용하고 있는 현금흐름 할인모형(discount cash flow model; DCF)은 미래의 불확실성 변수들을 적절히 반영하지 못한다는 한계점을 가지고 있지만 현실적으로 많이 쓰이고 있는 방식이다. 본 논문은 옵션기반모형에 근거한, BOT-옵션가치평가(BOT-OV)모형을 국내 민간 SOC 사업의 경제성 분석을 위해 적용한다. BOT-OV모형을 적용하는 것이 기존 순현재가치(net present value; NPV)방식을 통하여 프로젝트 가치 평가 할 때보다 더 정밀한 경제적 타당성 평가를 할 수 있다는 것을 확인하여 기존의 NPV 평가방식의 방법을 대체할 수 있는 가능성을 확인하는데 의의가 있다고 할 수 있다.

• Korean Institute of Interior Design Journal
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• v.19 no.5
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• pp.38-47
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• 2010

The purpose of this study is to examine the characteristics by design component elements of the facade in elementary school buildings after the 7th educational curriculum. This study choose twenty five elementary school as the subjects of the study. And among many elevations of building, an elevation that is alongside of the schoolyard is chosen because this elevation has the highest visual influence on passers-by. To begin with, this elevation is divided into the roof and the surface of a wall, The roof is divided into roof styles, existence of roof and materials. The surface of a wall is divided into design principles(balance, contrast, rhythm), the formal organization(basic elements and form, and transformation of form), the ornamental composition, materials and colors. The results of the research are summarized as follows: First of all, motifs of classical architecture were well expressed in this period and postmodern tendency had been shown until 2005. After Build Transfer Lease(BTL), however, tendency of classical architecture, contrast by the size of the form and base element by point disappeared. Instead, asymmetrical and flat tendency is expressed. Also, emphasized design of the building elevation appear by basic colors of Munsell, not motifs of classical architecture.

• International Commerce and Information Review
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• v.8 no.3
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• pp.193-206
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• 2006

The United States demands that the Korean Government include in the WTO GPA the privately invested projects of the BOT contract. Controversy surrounding BOT contract will continue. As of result of opening up of private investment market including BOT contracts, inflow of foreign capital will be expanded, and it will provide an opportunity for rectifying any unreasonable policies or regulations. With active penetration of foreign companies, there is a possibility for deepening of competition in the private investment market, and if a foreign administrative company is selected, possibility of assigning high value works such as design to foreign companies leaving labor intensive work such as construction to domestic companies exists, and also, difficulties resulting from agreement between the employer and the foreign administrative company exists. Large-scale construction companies must put forth their efficiency and creativity, and through revolutionary constructions by private sectors, reduction in construction cost should be made possible, and must also increase efficiency in maintenance, repair, and management of the facility. On the other hand, in order for Korean construction companies of BOT businesses to be able to enter the foreign BOT industry, the government needs to conduct studies in information and policies of various nations.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.3
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• pp.242-250
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• 2006

The purpose of this study was to identify tourist product factor combinations which confer the highest utility to tourists and to establish the relative importance of factors in terms of their contribution to total utility across gender. Among 250 questionnaires, 230 questionnaires were utilized for the analysis. $X^2$ analysis, Conjoint model, Max. Utility model, BTL model, Logit model, K-means cluster analysis, and one-way anova analysis were used for this study. The findings from this study were as follows. First, the Pearson's R and Kendall's tau statistics showed that the model fitted the data well across gender. Second, it was found that total respondents and three clusters regarded taste price as the very important factor across gender. Third, it was found that the male and female tourists most preferred product with light red color, shaped package, and highly pungent taste sold at a cheap price in factory. Fourth, it was found that the male tourists most preferred simulation product with light red color, shaped package, and highly pungent taste sold at a cheap price in factory. The female tourists most preferred simulation product with light red color, shaped package, and mild taste sold at a cheap price in factory. Finally, the results of the study provide some insights into the types of effective product designs that can be successfully developed by marketers.

• Journal of Korean Society of Water and Wastewater
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• v.28 no.1
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• pp.33-45
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• 2014

In this study, current sewer infiltration/Inflow(I/I) computation and application method was examined about improvement and adequacy relating to the main issues raised by the field for practitioners. The results of review about infiltration calculation method were considered to be in need of improvement at 'standards of minimum sewage calculation'. Furthermore, the results of review about I/I application method were considered to be in need of improvement at 'standards of seasonal infiltration application' and 'the relative decrease in the Annual evaluation standards'. In addition, annual I/I analysis at JC County for the four years(2009~2012) in respect of operation flow and rainfall data was conducted. The result of annual infiltration analysis, compared average daily sewage generated average infiltration rate was found in 21.95 %, infiltration by unit was found in $0.31m^3/day/cm/km$ and $0.12m^3/day/day$, respectively. The result of annual inflow analysis, average rainfall - Inflow equations was found $y=5.499{\times}$($R^2$ 0.793), and the average Inflow quantity by sewer extension was predicted to $0.66m^3/mm-km$.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2012.05a
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• pp.161-163
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• 2012

Recently on Value Engineering(VE) and Life Cycle Cost(LCC) social interests is increasing. The government Turn Key, BTL projects and public works projects, such as VE and LCC Analysis on the value and economic analysis is mandatory. And accordingly the VE and LCC analysis is underway for the various studies. However, there is a problem existing in the LCC analysis. Worth the cost varies according to the flow of time. However, the real interest rate during the LCC analysis of buildings in calculation time for interest rates and inflation are not considering the value of the flow. In other words, a few years using the average value of the deterministic analysis method has been adopted. These costs for the definitive analysis of the cost of an uncertain future, unforeseen changes resulting hazardous value. In this study of the last 15 years interest rates and inflation targeting by using Monte-Carlo Simulation is to perform probabilistic analysis. This potential to overcome uncertainties of the cost of building a more scientific and LCC Estimation of the probability value of the real interest rate is presented.

• Proceedings of the KAIS Fall Conference
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• 2010.05b
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• pp.649-652
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• 2010

교육시설에 BTL사업이 활성화됨에 따라 해당 사업의 규모가 급격히 확대되고 있다. 이에 교육시설 설계에 있어서 창의적이고 효율적인 대안설계를 제안해야함에 따라 설계VE 영역의 중요성이 부각되어 활발하게 진행되고 있다. 현재의 설계VE 진행절차는 준비단계, 분석단계, 실행단계로 이어지며 각 단계별로 다양한 운용기법과 분석방법으로 진행되고 있다. 특히 그동안 진행되었던 다수의 교육시설 설계VE 사례를 살펴본 바에 의하면, 설계VE 과정에서 VE대상 선정 시 동일하거나 유사한 방법이 나타나고, 최종 대안 역시 프로젝트 별로 유사한 패턴을 보이고 있음에도, 기존 설계VE의 전 과정이 반복적으로 진행되고 있다. 따라서 본 연구는 이처럼 동일하거나 유사하게 나타나는 대안들을 유형화 하여 설계VE 절차를 간소화함으로써 VE활동 기간을 단축시켜 효율성을 높이고자 한다. 이를 위해 기존 교육시설 설계VE 사례들을 통해 다양한 VE대안들을 분석하여 유형별로 정리한다. 그 결과로 유사한 패턴이 나타나는 최종 대안들을 교육시설의 공간과 각 공간에 따른 공종별로 구분하여 유형화하고자 한다. 이는 교육시설 설계VE 활동 시 유형화 된 대안을 활용하여 기능분석 등의 단계를 생략함으로써 설계VE 활동 기간 단축과 투입 노력을 축소시키는 효과를 얻을 수 있을 것이며, 설계VE에 있어서 보다 효율적인 운용이 가능하게 될 것이다.

• Journal of The Korean Digital Architecture Interior Association
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• v.10 no.1
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• pp.31-38
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• 2010

The use of school should not be limited to student education any longer but be extended for attaining social benefits. For this reason, school should play central roles not only in education but also in childcare, welfare, culture, physical education, etc. In order for school to accommodate various new functions, it is essential to promote the mixed-uses of school facilities, and this process requires the involvement of private capitals for early achievement of social benefits from school facilities. Thus, this study purposed to examine the necessity of the multiple uses of school facilities through the investment of private capitals, to diagnose the adequacy of build-transfer-lease (BTL) applied currently to the multiple uses of school facilities, and to find obstacles to the activation of private sector investment and suggest solutions for the obstacles. In particular, this study aimed at proposing plans to enhance the efficiency of private sector investment and activate private sector investment projects by suggesting how to promote the multiple uses of school facilities in consideration of profitability for private investors.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.687-690
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• 2007

This study is a basic research on looking onto bringing performance warranty contract into the country, to consider the usage in architecture which it is usually used on road pavement in developed countries. The study will also apply performance warranty contracts on public private partnerships through examination and analysis of various matters which will lead to globalization of the korean architecture industry, the increase of quality of result, better convenience for the orderer, the decrease of cost, and the acceleration on research for technical development.

• KIEAE Journal
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• v.11 no.2
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• pp.97-104
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• 2011

Over the years, there have been many school construction projects resulting from the activation of the Build Transfer Lease(BTL). Furthermore, due to the need for the qualitative expansion of educational facilities, as well as the attempt to fulfill social requirements and the need for eco-friendly learning environments, these projects have become a major priority. As a result, the government has established a proper standard for school construction based on a certain level of green certification that has been mandated. The aim of this study is to assess the status of schools as relates to the composition of the ecological environment surrounding them. These elements of eco-friendly school facilities are larger than the educational environment and are directly related to the environmental and educational effects on the students. Looking at the overall results of this study, the areas of ecological environment outside school are found to be inadequate. Therefore, this field needs to adopt more realistic goals, and focus on the areas where the most improvement is needed.