• Journal of Korean Society of Transportation
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• v.15 no.1
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• pp.27-43
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• 1997

본 연구의 목적은 1995년 우리 나라에서 발생한 교통사고의 인명피해비용을 추정 하는 것이다. 인명피해비용추정을 위한 방법론으로는 인적 자본법을 사용하였다. 인적자본 법의 기본이 되는 미래손실생산량의 계산은 임금을 기본으로 하지 않고 GNP를 기준으로 삼는다. GNP 상승률을 8.14%로 고정하고, 성장률에 대한 할인율의 비를 0.92, 0.94, 0.98 로 정하고, 이에 따른 할인율은 0.17, 0.15, 0.10으로 계산된다. 따라서, 각각의 비율에 따 른 총 인명피해액은 1조 2천억원, 1조 5천억원, 2조 6천억원이 된다. 또한, 평균인명피해액 을 구하면, 1억 2천 5백만원, 1억 5천 3백만원, 2억 5천 5백만원이 되며, 비용-편익 분석 을 위한 추정된 총 주행거리당 원단위 비용은 각각의 경우, 5원, 6원, 10원으로 산정 되었 다. 본고에서 추정한 총 주행거리당 원단위 비용은 도로 안전시설물 투자전 평가에 도움을 줄 수 있으리라 기대된다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.5
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• pp.19-29
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• 2023

The accident rate in South Korea is simply classified according to the road type and the number of lanes, but other countries apply various factors affect accidents. In this study, national highways where accidents occurred were divided into urban, rural, older, and modern roads using TAAS(Traffic Accident Analysis System) data, and a model of accident costs savings is suggested. As a result of analyzing 1,416.2 km, the fatality rate(person/100mil-vehicle·km) was 4.21 for urban-older, 1.37 for urban-modern, 2.18 for rural-older, and 0.99 for rural-modern roads. The rates of urban roads had a higher result than rural. The injury rate(person/100mil-vehicle·km) for urban-older was 182.63, that for urban-modern was 103.42, that for rural-older was 67.44, and that for rural-modern road was 42.96, which showed a similar pattern to fatality rates. Accident rates of a modern road were much lower than the KDI Guideline. The benefit of applying the result of this study was calculated and the valuation of accident costs savings is increased from 0.6% to 14.1%, while B/C is improved from 0.626 to 0.724.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.234-236
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• 2018

현대 사회에서 항만이 전반 공급체인에서 차지하는 역할이 날로 중요해지고 있다. 항만의 역할은 이미 단순한 하역작업이 아닌 화물에 부가가치를 부여하는 중요한 경제활동중심으로 진화하였다. 이러한 항만의 중요성으로 인해 각국은 모두 허브항 육성을 주요 성장전략으로 삼고 있다. 특히 동북아시아는 대형 항만이 가장 밀집된 지역으로 되어 항만 간 경쟁이 매우 치열하다. 부산항은 배후단지 활성화를 통한 안정적인 물동량 유치를 통해 역내에서 경쟁력을 확보하고 있다. 본 연구는 부산항 신항 배후단지에서 처리하는 주요 화물들의 원단위를 산정하여 실제 부산항 신항 배후단지에서 창조하는 부가가치에 대해 정량적으로 분석하였다. 분석결과, 케미칼 제품, LME 벌크, 자동차 부품, LME 컨테이너, 일반화물, LME 내륙운송의 순으로 원단위 비용이 점차 감소하였다. 향후 연구에는 부산항 신항 배후단지에서 취급되는 전체 화물에 대한 세부적인 연구가 이루어질 필요가 있다. 이를 통해 항만이 창출하는 가치를 보다 정밀하게 파악하고 효과적인 물동량 유치 전략을 실행할 수 있다.

• Journal of Navigation and Port Research
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• v.33 no.3
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• pp.207-213
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• 2009

This research estimates the contribution to the Busan regional economy made by Busan Port's container cargo handling from the microscopic point of view. The cost is calculated and shown in the currency unit of Korea, won, per TEU. A questionnaire was conducted to 12 different types of maritime business to obtain total sales and performances of the companies. The total sales of maritime business related to container goods per the whole TEU was computed at 238,230won/TEU. This can be adopted as a new index to analyse the Busan regional economy.

• Journal of Navigation and Port Research
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• v.44 no.6
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• pp.550-556
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• 2020

Over the past years, the role of ports in the global network of supply chains has becoming increasingly important, not merely as a physical location for loading and unloading goods, but also as an essential center of economic activity where additional value is added to cargo. Due to the overall growing importance of ports, each country has chosen to adopt hub growth as a primary economic strategy. Northeast Asia in particular, due to its high population density, experiences intense competition between its ports. Busan's port, as a result, has used the establishment of Distripark in order to attract high and stable trade volume, and compete more effectively with other ports in the region. This study estimates the unit cost of the logistic process for the all principal cargos handled at Busan New Port, with the findings revealing that unit cost increases gradually starting with chemical products, LME bulk goods, automobile parts, LME containers, general cargoes, and LME inland transportation goods coming in last. Future research will look more closely at all all categories of cargo handled in the Distrpark of Busan New Port, thereby enabling us to better understand the value created by the port, and how to best implement effective trade volume-attraction strategy.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.9
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• pp.765-774
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• 2009

Fiber Dyeing and Finishing facility has been recognized as an important pollution source due to its consumption of large volumes of water and chemicals. Unit mass discharge for the conventional water quality parameters such as flowrate, SS, $BOD_5,\;COD_{Mn},\;COD_{Cr}$, TN, TP were estimated. To represent the respective industries, three companies were carefully selected based on its manufacturing goods, flowrate and location at various unit operations and processes. More than 90% of decrease in unit mass estimation between influent and effluent of BOD was observed. But the values themselves were similar to those of Fiber Manufacturing facility due to the high loadings of organic matter. Biodegradability of influent was almost three times higher than that of effluent. Unit mass discharge estimations of unit process (estimated in this study) based on space, products and raw material were similar to those of composite process (estimated by National Institute of Environmental Research), while big difference was observed in the other factors. Unit mass discharge factors calculated in this study can be used as the reference for the estimation of water pollution loading costs in Nakdong river basin. For the effective water pollution control and management, it is essential to characterize the various types of water quality parameters from the effluents of individual industrial wastewater treatment plants.

• Journal of Korean Society of Transportation
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• v.25 no.5
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• pp.15-21
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• 2007

This paper proposes an improved methodology for estimating traffic accident cost savings in the transport appraisal. Four major problems from the existing framework are identified and their alternatives are suggested. First, casualties in the established approach are classified by just two types of 'killed' and 'injured'. This study supplies the indices of fatality further details. Namely, road victims are regrouped by 'killed', 'seriously injured', 'slightly injured', and 'accident reports'. Those of railways are similarly sorted by 'killed', 'seriously injured', and 'slightly injured'. Second, damage only accidents are not satisfactorily considered in the current arrangement. The accidents should be considered as one of the accident types and the social cost of them should also be evaluated. Third, the unit cost of accidents is given by the total value. The unit cost is consisted of several elements and each loss would be useful for a policy frame. This study breaks down the total figure into four pieces of costs, namely production loss, medical treatment, property loss, and administrative costs. Finally, there is inconsistency in the audit between roads and railways. Road accidents are analyzed by road types. On the other hand, patronage or others is the classification rule of rail accident costs. This paper suggests a way that the accident costs of two modes can be coherently estimated based on the level of services by each mode. The result of this study is expected to help frame more cautious social overhead capital investment policies.

• Journal of Korean Society of Transportation
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• v.30 no.5
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• pp.33-42
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• 2012

This study proposed a model for estimating the unit value of social cost for mobile emission considering local geographical and social characteristics, together with a method to evaluate the air quality value. The model was built based on benefit transfer methods, the population density, and green space ratio of each area, which are reflected through independent variables. While applying the model, the unit value of social cost for mobile emissions in both densely populated areas of Seoul and Busan was found to be 18.68 times and 10.71 times higher than the national average, respectively. It is highly expected that this study can contribute to providing more reliable guidelines to decision makers when evaluating various green transportation policies and projects.

• Journal of the Korea Organic Resources Recycling Association
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• v.24 no.4
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• pp.11-20
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• 2016

Depletion of natural resources and reduction of greenhouse gas emissions are an important issue which we have to solve. The recycling of waste has emerged as a global concern. In Korea, the development of cost-effective treatment and recycling technologies also need to be improved. In this study, we compared and analyzed the cost per unit of treatment and recycling of organic waste, and presented an effective recycling scheme. We investigated the current status of treatment and costs for six types of organic wastes from 80 workplaces, including organic wastewater treatment sludge, processed organic sludge, and plant residues. In addition, environmental costs for greenhouse gas reduction were calculated. It's an economic way that organic waste is composted and used as cement additives. In particular, the economic analysis was done by realistic results of the survey target companies. In conclusion, in order for reliable processing and recycling of organic wastes, wastewater treatment sludge and sewage sludge need to be classified based on hazard characteristics. Finally, technical difficulties need to be further resolved such as odors, leachate, and debris on recycling organic wastes.

• Journal of IKEEE
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• v.26 no.2
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• pp.219-225
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• 2022

The textile industry in Korea, the dyeing sector is an energy-intensive sector and has low per-unit productivity due to its labor-intensive nature. If the defective rate of dyed fabrics is high, additional costs are incurred due to an increase in production cost due to re-dyeing. Therefore, the goal of the dyeing factory was to minimize the defect rate rather than to save energy. It was difficult to check the dyeing state of the fabric in real time due to the risk of accidents due to burns or pressure when dyeing in a high-temperature and high-pressure environment. In this paper, a complex sensor that can measure the exhaustion rate of dye solution in the dyeing machine using turbidity, pH, and conductivity sensors was proposed, and the experimental method and experimental results were analyzed.