• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2003년도 학술.기술논문 발표회
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• pp.125-128
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• 2003

This study aims to feasibility study of the Youth Center. Welfare of adolescents is appeared to a matter of concern and interest as social problems of various kinds related adolescents including the fire at a beer bar in Inchon occur recently. In view of government, in addition to fairness of facility location, location of such facilities arc to be determined the respect to cost of locating facilities and developmental direction in the future. A feasibility study is and effective tool in determining the decision of investment or not and the level of investment priority on projects requiring a sizeable investment and the feasibility of a project. The first, it is to select reasonable location. It was selected three and two by consideration of facilities distribution and connection with others. Five proposal selected was estimated by five element of approach, demand, symbol, reality, environment. In result proposal I was chosen. The next, it is to estimate scales. It was estimated by analysis of catchment area, similar facilities, programs, in result 7,260㎡ come into analysis to the best gross area. The finally, it is to study on economical efficiency. Income Statement estimated was came out ₩1,7billion. in addition, it offer various benefit by public facilities.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2003년도 학술.기술논문발표회
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• pp.125-128
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• 2003

This study aims to feasibility study of the Youth Center. Welfare of adolescents is appeared to a matter of concern and interest as social problems of various kinds related adolescents including the fire at a beer bar in Inchon occur recently. In view of government, in addition to fairness of facility location, location of such facilities are to be determined the respect to cost of locating facilities and developmental direction in the future. A feasibility study is an effective tool in determining the decision of investment or not and the level of investment priority on projects requiring a sizeable investment and the feasibility of a project. The first, it is to select reasonable location. It was selected three and two by consideration of facilities distribution and connection with others. Five proposal selected was estimated by five element of approach, demand, symbol, reality, environment. In result proposal I was chosen. The next, it is to estimate scales. It was estimated by analysis of catchment area, similar facilities, programs, in result 7,260$m^2$ cone into analysis to the best gross area The finally, it is to study on economical efficiency. Income Statement estimated was came out \1.7billion. in addition, it offer various benefit by public facilities.

• 한국컴퓨터정보학회논문지
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• 제14권7호
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• pp.151-160
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• 2009

본 연구의 목적은 경제적인 주행속도 지표를 제공하는 도로 주행 시뮬레이터의 모듈을 개발하는데 있다. 주행경제를 위한 친환경 주행 시뮬레이터 모듈은 에너지의 효율화, 도로안전향상, 지속가능한 저탄소 녹색성장의 도로운영기술, 비용절감 정보를 제공한다. 본 연구의 목적을 달성하기 위해 현장에 구현되어 있는 도로선형과 도로기하구조정보에 따라 도로주행 정보와 모의주행 시나리오를 검토하여 시뮬레이션을 수행하는 기술사양을 구현하였다. 본 연구를 통하여 개발된 친환경 주행 시뮬레이터 모듈은 주행모드 행위분석의 네비게이션 정보표출이나 이용편의성을 증진시키는 다양한 연계교통과 국도설계체계를 구축히는데 기여할 것이다.

• 한국대기환경학회지
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• 제27권6호
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• pp.805-818
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• 2011

The unequivocal risk of climate change, the weakness of energy security, and the problem of air quality will be possibly accelerated by the same reason, the enhanced fossil fuel dependancy in the future. It is obvious that greenhouse gases and air pollutants are mainly emitted from same sources. Moreover, greenhouse gases and air pollutants have their adversed impacts on same socio-economical, and environmental sectors. With these regards, several but limited studies have emphasized on the importance of the integrated management of climate change and air quality problem. In this study, we address the current trend of energy consumption and the change of air quality condition. Also the related policies are checked out in order to reduce emissions of greenhouse gases and air pollutants in Korea. By surveying previous studies, it is shown that the cost of climate change actions can be reduced by air quality co-benefits and vis-a-versa. Also the integrated strategy for climate change and air quality is introduced in term of cost-effectiveness and co-benefit.

• Earthquakes and Structures
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• 제22권6호
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• pp.561-570
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• 2022

It is of great importance to be able to evaluate different structural systems not only based on their seismic performance but also considering their lifetime service costs. Many structural systems exist that can meet the engineering requirements for different performance levels; therefore, these systems shall be selected based on their economic costs over time. In this paper, two structural systems, including special steel moment-resisting and the ordinary concentric braced frames, are considered, which are designed to meet the three performance levels: Immediate Occupancy (IO), Life Safety (LS), Collapse Prevention (CP). The seismic behavior of these two systems is studied under three strong ground motions (i.e., Tabas, Bam, Kajour earthquake records) using the Perform3D package, and the incurred damages to the studied systems are examined at two hazard levels. Economic analyses were performed to determine the most economical structural system to meet the specified performance level requirements, considering the initial cost and costs associated with damages of an earthquake that occurred during their lifetime. In essence, the economic lifetime study results show that the special moment-resisting frames at IO and LS performance levels are at least 20% more economical than braced frames. The result of the study for these building systems with different heights designed for different performance levels also shows it is more economical from the perspective of long-term ownership of the property to design for higher performance levels even though the initial construction cost is higher.

• 한국지리정보학회지
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• 제2권2호
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• pp.87-96
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• 1999

본 연구에서는 GIS구축과 관리에 소요되는 비용과 편익에 관하여 분석을 실시하고자 하였다. 이를 위하여 연구방법으로 대구광역시의 GIS구축을 중심으로 사례연구를 활용하였으며, 경상할인율은 5%, 8%, 10%, 12% 등으로 다양하게 적용하였을 뿐만아니라, 이를 근거로 불변할인율을 산정하여 상호차이를 비교하였다. 이 분석결과에 의하면, 대구시의 GIS투자에 대한 편익은 구축이 완성된 98년부터 증가하여 순편익의 순현재가치가 5-6년 후인 2004년부터 손익분기점을 넘어 긍정적으로 나타났다. 이 결과 대구광역시 GIS의 경우, 경제적 및 재정적인 타당성이 있는 것으로 볼 수 있다. 또한 향후 대구시 사회기반시설 건설업무를 위한 잠재적인 활용도를 포함시킨다면 비용편익비율은 훨씬 향상될 것으로 사료된다. 본 연구에서는 비가시적인 편익에 대한 분석은 제외시켰으나, 향후 대구광역시 사회기반시설 건설업무를 위한 잠재적인 활용도를 포함시킨다면 GIS의 구축 및 활용효과는 더욱 클 것으로 예상되며, 나아가 이에 따른 비용효과분석과 GIS의 편익발굴에 대한 심층적인 연구가 요구된다.

• 상하수도학회지
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• 제29권3호
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• pp.395-406
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• 2015

This research carried out an analysis on input cost and leakage reduction effect by leakage reduction method, focusing on the project for establishing an optimal water pipe network management system in the Taebaek region, which has been executed annually since 2009. Based on the result, optimal cost-benefit analysis models for water distribution network rehabilitation project were developed using DEA(data envelopment analysis) and multiple regression analysis, which have been widely utilized for efficiency analysis in public and other projects. DEA and multiple regression analysis were carried out by applying 4 analytical methods involving different ratios and costs. The result showed that the models involving the analytical methods 2 and 4 were of low significance (which therefore were excluded), and only the models involving the analytical methods 1 and 3 were suitable. From the result it was judged that the leakage management method to be executed with the highest priority for the improvement of revenue water ratio was installation of pressure reduction valve, followed by replacement of water distribution pipe, replacement of water supply pipe, and then leakage detection and repair; and that the execution of leakage management methods in this order would be most economical. In addition, replacement of water meter was also shown to be necessary in case there were a large number of defective water meters.

• 대한건축학회논문집:계획계
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• 제34권3호
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• pp.23-34
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• 2018

Due to a waste of energy in korea, about 525,000 which are 75 percent of total buildings are at least 15 years old buildings that need remodeling. There are two current remodeling systems. One is a remodeling system to reduce a waste of resources from the reconstruction. The other is a green-remodeling system aimed to energy savings and reducing environmental costs. This study is to analyze quantitatively these current systems with respect to the cost-benefit caused by the life cycle and suggests the political and institutional implications through the interpretation of the results. For a quantitative analysis, we analyzed reducing maintenance costs and rent benefits with simulation by using opportunity costs, construction costs, plan costs and supervision costs as expense variables and using the reduced floor area ratio, institutional incentives, energy, water resources and certified emission reduction(CER) as benefit variables. As a result of the empirical study, the green-modeling was more beneficial in the field of environment such as the energy savings, however, the final benefits of remodeling which has no green building certification costs but more floor area ratio incentives were more economical. The green-remodeling system focused on reducing environmental costs and energy savings needs a equatable institutional incentive system.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2001년도 봄 학술발표회 논문집
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• pp.603-608
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• 2001

In these days, high-strength steel prevails throughout the construction fields for the benefit of structural and economical aspects. But high-strength steel is used by the simple calculation of flexural capacities for the purpose of reducing flexural reinforcement. So, this paper is mainly focused on the shear behavior of high-strength steel reinforced concrete beams without stirrups comparing with normal-strength steel reinforced concrete beams. Specimens were made and tested with the experimental parameters, such as steel yield strength, reinforcement ratios and minimum shear reinforcement. The main result was that not only area but also the yield strength of flexural reinforcement should be considered to predict the shear capacities of concrete beams.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2005년도 학술발표회 논문집
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• pp.517-522
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• 2005

자연형 하천은 사용가치 뿐만 아니라 비사용적 가치를 포함하고 있기 때문에 비용편익분석에 비사용적 가치를 포함시켜야 한다. 그러지 못할 경우, 자연형 하천이 경제적 편익을 제공함에도 불구하고 경제적으로 타당성이 없는 것으로 판단될 수 있다. 본 연구는 자연형 하천의 경제적 편익을 분석하기 위하여 조건부가치평가법(CVM)을 이용하여 자연형 하천으로 조성된 전라북도 순창에 위치한 경천에 대하여 경제적 편익을 분석하였다. 연구방법은 가상적인 상황을 설정하고 여러 조건을 달아 자연형 하천에 대해 어느 정도 지불할 의사가 있는지를 설문을 통하여 분석하였다. 설문은 기본적인 속성과 환경용수, 생태계, 하천유지, 수질개선으로 구분하였고 순창읍 주민들을 대상으로 하였다. 자연형 하천으로 정비된 경천에 대해 경제적 편익을 분석한 결과 년간 약 11억원의 편익이 발생하는 것으로 추정되었다. 이와같은 결과를 이용하면 자연 친화적인 하천 정비사업을 시행할 때 합리적인 경제적 편익을 평가할 수 있으므로 사업의 타당성 평가에 이용할 수 있다.