• Journal of the Korean Society for Railway
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• v.13 no.1
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• pp.119-124
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• 2010

Light rail is an electric railway system, characterized by its ability to operate single or multiple car consists (trains) along exclusive rights-of-way at ground level, on aerial structures, in subways or in streets, able to board and discharge passengers at station platforms or at street, track, or car-floor level and normally powered by overhead electrical wires. Depending upon the specific system, the light rail lends some major advantages to urban settings. The evaluation of light rail technology as a potential component of regional transit systems has been the subject of extensive studies throughout the country in the past decade. For the study, feasibility was defined as "the ability of an LRT system to achieve certain level of transportation market in comparison with other transportation alternatives." This paper describes the feasibility study to evaluate a proposed light rail development project. The minimum are those LRT systems that would met to make a project feasible for further evaluation.

• Journal of Korean Society of Transportation
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• v.20 no.4
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• pp.39-48
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• 2002

본 논문의 목적은 교통계획 및 투자 사업의 평가에 있어 대기오염 요소를 고려하기 위해 필수적인 기초자료인 대기오염에 의한 경제적 가치를 추정함에 있다. 이를 위하여 가상적인 주택선호자료를 바탕으로 대기오염 개선에 대한 가구의 지불용의액을 추정하고 이를 바탕으로 대기오염 피해의 화폐적 가치를 추정한다 특히, 국내에서는 적용된 바 없지만 마아케팅 및 교통수요 분석 부문에 있어 시간가치, 교통수단의 안락감 등 비계량적 요소의 경제적 가치 측정에 많이 사용되는 SP(Stated Preference)기법을 사용해서 대기오염 피해에 대한 화폐가치를 추정한다. 연구결과 가구의 점유형태에 따라 대기오염에 대한 경제적 가치가 유의적인 차이가 존재하며 도로교통에 의한 대기오염 1%의 경제적 가치는 240만원/가구.년으로 분석되었다. 대기오염물질별 경제적 가치를 살펴보면 $O_3$ 0.01ppm의 경제적 가치는 55.40만원/가구.년, N$O_2$ 0.01ppm 18.33만원/가구.년으로 추정되었다. 본 연구를 통해 교통투자사업의 평가에 있어 환경적 요소를 고려할 수 있는 기초자료를 마련하였으며, 교통분야 뿐만 아니라 환경관련 정책의 수립 분석에 중요한 기초 결과가 제시되었다. 본 결과가 교통분야에 더욱 유용하게 사용되기 위해서는 교통투자사업 또는 교통관리에 따른 교통량의 변화와 대기오염물질 배출량의 관계에 대한 연구가 추가적으로 필요하다고 판단되며 이 연구가 이루어지면 본 연구가 제시한 결과치는 교통투자사업의 편익/비용 분석에 중요하게 사용될 수 있을 것으로 판단된다. 본 연구의 한계로서는 조사지역이 전국에서 환경오염이 심한 서울지역에서 조사가 한정되었다는 점이며 이에 대한 앞으로의 연구가 필요하다.

• Journal of dental hygiene science
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• v.2 no.2
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• pp.53-62
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• 2002

The purpose of this study is to investigate the retention and caries prevention practical effectiveness of fissure sealant and regular checkup with cost-benefit analysis. The data of this study is based on "2000 The Survey of Korean Oral Health" by Ministry of Health & Welfare. This study is to investigate cost-benefit analysis on proper treatment for the decayed, in case of operating fissure sealant on molars at 1 year after eruption of permanent teeth. The obtained results were as follows: (1) Cost-benefit analysis on fissure sealant in 6-75 year old 43,736 thousand Korean people reveals that cost of fissure sealant is 1,610,994 million won and benefit is 69,460,691 million won. (2) Benefit of fissure sealant is 39.51 times as much as cost of fissure sealant. (3) Cost of twice in a year regular checkup is 2,678,544 million won. Indirect cost of regular checkup is 2.6 times as much as direct cost. (4) Cost of fissure sealant and twice in a year regular checkup is 4,289,538 million won, and benefit is 69,460,691 million won. Benefit of fissure sealant and twice in a year regular checkup is 16.2 times as much as cost.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.1D
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• pp.41-47
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• 2006

The construction of traffic facilities has generated a variety of problems in the equality and efficiency when it would be planed and evaluated. One of the reasons for these phenomena isn't the definition of an objective standard about benefit items. Thus, results of evaluation couldn't give a demonstration of confidence. But, the traffic facility construction and its operation costs are securely appeared. Therefor, it will be demonstrated to decide the benefit items in this study. Before deciding the items, user's satisfaction evaluation and economic analysis would be carried. We find out subway user's satisfaction higher than load traffic mode user in satisfaction evaluation, while subway's economic feasibility is lower than load facility, as a result of B/C analysis. In this inconsistent results, we found out that the benefit value is a little lower because of indefinite standard of it's items as comparing Busan Metropolitan City's population with subway's modal split ratio. Accordingly, we enumerate some benefit items in the case of feasibility evaluation as constructing traffic facility. And each of evaluation items' weight is estimated by using ANP. We found out that the weight value of accessibility has the highest one, that of punctuality has second, that of travel time has third, and benefit items according to improvement of user's traffic condition have much more important than those which were considered in the existence economic analysis.

• Economic and Environmental Geology
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• v.47 no.3
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• pp.219-225
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• 2014

In Korea, there are 1,474 thousand pumping wells nationwide which account for about 12% of total water use in 2012. As much as 39 hundred million tons of groundwater were used while 333 hundred million tons of total water were supplied in 2012. Because the water management authority projects that water demand will exceed supply by 2021, the authority is planning to extensively expand groundwater use in accordance with economic feasibility. Using the basic frameworks of cost-benefit analyses of the World Bank and the US Environmental Protection Agency (US EPA), the objective of this study is to examine the costs and benefits of the expansion of Korea's groundwater extraction through pumping wells. We conclude that the BC ratio of the groundwater pumping wells is 2.98. This signifies that the benefits are 2.98 times higher than the costs. The benefits include use and non-use values of pumping wells while the costs include the installation and maintenance of new wells, in addition to the restoration and pollution costs of abandoned wells, as well as fees for water quality tests, etc.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2015.11a
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• pp.479-487
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• 2015

In Korea, there are 1,474 thousand pumping wells nationwide which account for about 12% of total water use in 2012. As much as 39 hundred million tons of groundwater were used while 333 hundred million tons of total water were supplied in 2012. Because the water management authority projects that water demand will exceed supply by 2021, the authority is planning to extensively expand groundwater use in accordance with economic feasibility. Using the basic frameworks of cost-benefit analyses of the World Bank and the US Environmental Protection Agency (US EPA), the objective of this study is to examine the costs and benefits of the expansion of Korea's groundwater extraction through pumping wells. We conclude that the BC ratio of the groundwater pumping wells is 2.98. This signifies that the benefits are 2.98 times higher than the costs. The benefits include use and non-use values of pumping wells while the costs include the installation and maintenance of new wells, in addition to the restoration and pollution costs of abandoned wells, as well as fees for water quality tests, etc.

• Journal of the Korean Society for Railway
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• v.18 no.4
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• pp.374-390
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• 2015

This research shows the relationship between the number of trains and the probability of trains with arrival delay and suggests way to estimate the benefits of improved punctuality in a bottleneck section of the Gyeongbu Line. The arrival delays of high-speed and conventional trains were estimated using the train operation data of KORAIL. Linear regression models for the probability of trains with arrival delay by train type are presented in this paper. The probabilities of trains with arrival delay were more affected by the number of conventional trains than by the number of high-speed rail trains. For the empirical analysis, a project for increasing the capacity in the Seoul~Geumcheongu office section was tested. The benefits of the improved punctuality were estimated to be 4.2~4.5 billion Korean won every year. This research has some limitations but it can help evaluate more precisely the feasibility of the project of increasing the capacity in bottleneck sections.

• Journal of Korea Water Resources Association
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• v.46 no.10
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• pp.997-1004
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• 2013

There is imminent need to find a way to measure the recreational benefits of water so that appropriate actions can be taken to make a multi-purpose reservoir. Therefore, this study attempts to apply a choice experiment to quantifying the recreational benefits of a multi-purpose reservoir, using a specific case study of Sangkwan multi-purpose reservoir. We consider the trade-offs between price and attributes of recreational attributes for selecting a preferred alternative and derive the marginal willingness to pay (MWTP) estimate for each attribute. The results show that the MWTP for providing additional 10,000 ton of water is estimated to be 3 won per household per year. The MWTP for improving 1 level of water quality is computed to be 645.5 won per household per year. Moreover, the MWTP for providing recreation facilities is calculated to be 1,518.6 won per household per year. This study allows us to provide policy-makers with useful quantitative information that can reduce uncertainty in the decision-making process related to a multi-purpose reservoir construction projects.

• Journal of Korea Water Resources Association
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• v.46 no.10
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• pp.989-995
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• 2013

This study attempts to estimate the benefits of environmentally-enhancing water ensuing from Sangkwan multi-purpose reservoir. To this end, we apply a survey technique, the contingent valuation (CV) method to elicit the public willingness to pay (WTP). Two CV surveys of randomly selected households were administrated to on-site and off-site areas. As it happens, a number of respondents reported zero WTPs for the environmentally- enhancing water. To deal with the zero WTPs, this study employs a spike model. The results show that average household's WTP for the environmentally-enhancing water ensuing from Sangkwan multi-purpose reservoir is estimated to be 1,393.7 won for on-site area and 2,237.7 won for off-site area per year. The benefits of environmentally-enhancing water ensuing from Sangkwan multi-purpose reservoir amount to about 38.3 billion won per year. Our findings are expected to contribute to determining an appropriate level of investment and making management policies with regard to the benefits of environmentally-enhancing water.

• Journal of the Korean Society of Marine Environment & Safety
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• v.20 no.2
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• pp.130-142
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• 2014

The Korean government is considering implementation of the marine ecosystem restoration technology program (MERTP) to analyze the current status of the marine ecosystems and causes for the ecosystem deterioration as well as to eventually establish a master strategic plan for restoring ecosystem functions and preventing ecosystem functional loss. In order to determine likelihood of successful implementation, it is essential to perform an analysis of the economic feasibility of the program. The present study assessed economic feasibility of the MERTP. To this end, the dichotomous choice contingent valuation (CV) method is used. In particular, dichotomous choice (DC) format is employed as a method of eliciting willingness-to-pay (WTP) response to incentive-compatible mechanisms. The study also employed the spike model to deal with zero WTP responses from the DC CV survey. This survey of 1,000 randomly selected households in accordance with the guidelines provided by the National Oceanic and Atmospheric Administration (USA) was carried out nationwide in 2013. And, the respondents were asked in person-to-person interviews about their WTP for implementing the MERTP. The results showed that the annual mean WTP was estimated to be 5,414 won per household. Consequently, the annual benefit from the MERTP would be about 98.6 billion won for the next five years. Economic feasibility assessment utilizing the MERTP investment cost and expansion cost of the value provided that net present value, benefit/cost ratio, and internal rate of return are 337.8 billion won, 5.20, and 65.9 %, respectively, which are bigger than 0, 1.0, and 5.5 %, and that the MERTP passes the cost-benefit analysis.