• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.169-169
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• 2017

수자원의 관리적인 측면에서 하천에서 발생하는 재해로부터 자유롭기 위해 치수는 매우 중요하다. 특히 치수사업은 투자를 통해 주어진 제원을 알맞게 분배하고 사업의 타당성과 우선순위를 정하는 객관적인 기준이 필요하다. 이를 위해 본 연구에서는 소하천 치수사업을 진행함에 있어 투자효율을 고려하여 치수 경제성 분석을 방법을 제시하고 연구를 수행하였다. 대상지역은 강원도 고성군에 위치한 홍수범람지구 7개 소하천으로 선정하였다. 치수사업에 따른 직접 편익을 계산하기 위해 홍수빈도와 피해액의 관계를 결정하였으며 이를 토대로 유량규모별 피해액을 산정하고 치수시설의 완성 및 유지관리에 필요한 비용을 산정하여 총 사업비를 구체화 시켰다. 경제성 평가기준인 총비용과 그 투자에 대한 총 편익을 비교하기위해 순현가(NPV), 편익/비용비(B/C), 내부수익율(IRR)의 세 가지 기법을 이용하였으며 동일치수사업에 대해서는 B/C비기준에 의한 평가로 경제성 평가를 실시하였다. 그 결과, 연구 구간의 계획 규모를 50년으로 선정하였다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 1996.07a
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• pp.89-102
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• 1996

본 연구는 우리나라 대기오염의 실태를 알아보고, 급격히 증가하고 있는 대기오염으로 인한 사회적 비용을 산출해 봄으로서 비용-편익분석에 기초하여 이루어지고 있는 선진국형 환경규제기준의 발판을 마련하는데 그 의의가 있다. 이러한 연구는 앞으로 WTO의 정식의제로 채택되리라고 예상되는 환경정책에 능동적으로 대응하고, 우리나라 환경정책의 우선순위의 결정 및 사람들이 체감으로 느끼는 대기오염의 심각성을 확인시킴으로써 환경보전에 대한 인식을 확산, 환경정책의 수행을 용이하게 한다. 이산화질소와 호흡기 질환의 반응도에 관한 실증분석의 결과는 이산화질소가 인체의 호흡기 질환에 매우 유의적인 영향을 미치고, 이산화질소 대기오염으로 인한 한해 동안의 사회적 비용은 약 5조 3,946억원을 상회했다. 이외에 상관관계를 이용해 대기오염이 질병에 미치는 영향을 진료과목별로 분류하여 분석한 결과는 대기오염이 질병에 상당한 상관관계를 갖고 질병을 유발시키고 있음을 확인했다.

• Journal of Korean Society of Transportation
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• v.27 no.2
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• pp.199-206
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• 2009

In relation with economical efficiency analysis on investment evaluation of transportation system, among vehicle operating cost saving benefit that is applied to general preliminary assessment guidelines and investment evaluation guidelines, oil expense calculated data which concentrated and analyze on the relationship between oil consumption amount on running state and running speed. For uninterrupted flow which does not have stopped delay due to traffic signal, consideration for reduction benefit is possible due to the changes of running speed and travel time however, for interrupted flow which the stopping occurs due to signal control on actual signal intersection has no consideration for stopping delay time reduction and stopping rate improvement thus reflection of reality on improved effect analysis is difficult. Therefore, this research makes a framework to analyze benefits that reflects the features of signalized intersections by benefits associated with decrease of stopping delay time with existing research and developing vehicle operating cost calculation model formula. Vehicle operating cost has been redefined considering the stopping delay time by applying the oil consumption amount at idling and the economical benefit between conventional model and newly developed model when applied for the optimization of traffic signal system on the two roads in Seosan city has been analyzed comparative. While the importance of traffic system maintenance is being emphasized due to the increase of congested areas on roads, it is expected to assist in more realistic economical analysis which reflect the delay improvement through the presentation of an economic analysis model that considers the features of signalized intersections in signal optimization system improvements and effect analysis of congestion improvement projects`.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.43 no.6
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• pp.721-733
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• 2023

As the frequency of extreme rainfall events increase due to climate change, climate change adaptation measures have been proposed by the central and local governments. In order to reduce flood damage in urban areas, various flood response policies, such as low impact development techniques and enhancement of the capacity of rainwater drainage networks, have been proposed. When these policies are established, regional characteristics and policy-effectiveness from the cost-benefit perspective must be considered for the flood mitigation measures. In this study, capacity enhancement of rainwater pipe networks and low impact development techniques including green roof and permeable pavement techniques are selected. And the flood reduction effect of the target watershed, Gwanak campus of Seoul National University, was analyzed using SWMM model which is an urban runoff simulation model. In addition, along with the quantified urban flooding reduction outputs, construction and operation costs for various policy scenarios were calculated so that cost-benefit analyses were conducted to analyze the effectiveness of the applied policy scenarios. As a result of cost-benefit analysis, a policy that adopts both permeable pavement and rainwater pipe expansion was selected as the best cost-effective scenario for flood mitigation. The research methodology, proposed in this study, is expected to be utilized for decision-making in the planning stage for flood mitigation measures for each region.

• Journal of vocational education research
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• v.35 no.6
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• pp.113-141
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• 2016

The apprenticeship training is given as a solution of the youth unemployment problem. The apprenticeship is a system that companies hire and instruct trainees and is implemented in various countries. In Korea, there is a Korean work-learning dual system which is managed by the government rather than the company itself. This Study analyzed Germany, Switzerland and Austria's apprenticeship training system and compared common factors of apprenticeship system, a trainer in company and cost-benefit analysis. The result of the study can be shown as follows. First, Germany operates practical training, meanwhile Switzerland and Austria provide a pre-education course before students enter the upper-secondary VET course. Second, Germany and Switzerland give a single type apprenticeship training, whereas Austria runs a modularization system, which enables students to specify their skills and improves clarity. Third, social partners as well as the government, states, companies/schools actively participate in apprenticeship. Fourth, there is a suitable trainer's qualification system in all countries. Finally, Germany and Austria's companies cause larger cost than benefit in apprenticeship. On the other hand, Switzerland gets larger net-benefit than cost. We can give implications to the Korean work-learning dual system based on this study.

• Nuclear industry
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• v.21 no.6 s.220
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• pp.19-29
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• 2001

• THE INDUSTRY AND TECHNOLOGY OF GAS
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• v.4 no.1 s.4
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• pp.73-74
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• 2001

• KDI Journal of Economic Policy
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• v.1 no.2
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• pp.81-102
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• 1979

• 도로교통
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• s.82
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• pp.23-33
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• 2000

• Journal of Korea Water Resources Association
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• v.42 no.4
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• pp.343-353
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• 2009

The objective of this study is to evaluate the effect of the water quality improvement by water discharge through dams and to provide a benefit estimation methodology, taking domestic situation into consideration, by the replacement cost approach analyzed with a sewage treatment plant instead of an alternative dam. To this end, facility that alternates a dam must have same functions of the discharged water from the dam and the two facilities must be able to be compared objectively. To estimate the benefit, estimation methodology of alternative facility's cost is established and criteria of cost.benefit analysis that are duration period and ratio of large scale repairing expense was presented. As a case study, the water quality improvement benefit of Song-Li-Won dam was evaluated, which is planned to be built on Nae-Sung stream in Nak-Dong River system. The results of applying this methodology to Song-Li-Won dam are 644,006 million won of the annual average discharge and 1,351,526 million won of maximum discharge. The usage of the framework in this study is expected for estimation of water quality improvement benefit in case water quality improvement project is performed.