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실적자료에 의한 농어촌정비사업 사업비 결정에 있어서의 단가모델 구축
배연정 ( Bae Youn Joung ),이정재 ( Lee Jeong Jae ),윤성수 ( Yoon Seong Soo ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-
Providing the reasonable construction cost at the initial stage of the rural development project is a key factor of the each step of project, such as propriety analysis, cost planning, design, and planning the progress of work. The explainable construction cost can be estimated at the early stage using the actual cost data by statistical analysis. In this study, the influence factors are extracted by factor analysis with the actual cost data of rural development project, object cost model is developed by multiple regression analysis, and verify the developed cost model by Monte-Carlo simulation.
국제개발협력사업의 마을도로 건설 비용편익 분석 - KOICA 베트남 라오까이 행복프로그램 적용사례 -
이아연,공기서,윤성수,송양훈,Lee, Ah-Youn,Kong, Ki-Seo,Yoon, Seong-Soo,Song, Yang-Hoon 한국농촌계획학회 2018 농촌계획 Vol.24 No.3
The purpose of this study is to measure the cost-benefit of a road construction project in Vietnam through international development cooperation, which includes private grants and Official Development Assistance(ODA). In developing countries, it is difficult and costly to use data on markets, the CVM(Contingent Valuation Method) to measure the WTP(Willingness-to-Pay) as the benefits of road construction are used. A total of 232 villagers in 16 villages of Lao Cai Province in Northern Vietnam have been surveyed. It is found that the Benefit-Cost Ratio(B/C) in all 3 models are found to be well over 1.0, ranging from 2.8 to 3.64 with the discount rate of 0.06. These BC ratios imply the road construction project in Lao Cai can be justified. Also, it is found that the shortened travel time is the most relevant factor for WTP among direct benefits and the enhanced academic achievement of the children is the most relevant factor among indirect benefits, due to easier and faster access to schools, which in turn increase the school attendance rate. The result of this study can be used to justify other similar projects in Vietnam, even though the benefits may have to be reassessed in other countries.
장문기 ( Jang Moon Ki ),이정재 ( Lee Jeong Jae ),윤성수 ( Youn Seong Soo ) 한국농공학회 1999 韓國農工學會誌 : 전원과 자원 Vol.41 No.6
This paper present the strength estimation of precast concrete products by chloride ion penetration method. The relation between the strength of precast concrete product and the ion passing charge is linear and a numerical model of F<sub>ck</sub>=515.96-0.201Q. is proposed. The results show good agreement at about 9.0% error ratio with the estimated model results for real precast concrete product.