• 한국환경복원기술학회지
• /
• 제18권2호
• /
• pp.33-44
• /
• 2015

This study was performed to propose the site selection plan for the restoration of the target Narrow-mouth Frog(Kaloula borealis) habitat, and has developed the AHP model to select the optimal site for narrow-mouth frog habitat restoration on the basis of the narrow-mouth frog Habitat Suitability Index (HSI) items (factors and variables). The assessment areas were established by the narrow-mouth frog HSI factors such as space, feed, cover, water(breeding), threatening factors and others, and the sub-assessment items by each assessment area were established based on the narrow-mouth frog HSI variables. The weighting values of the assessment areas and items were calculated by the developed AHP method. The weighting values of the 5 assessment areas were arranged in order as cover(0.283), water(breeding)(0.276), feed(0.230), space(0.147), and threatening factor(0.064). The final weighting values of the 14 assessment items were arranged in order of height as low-rise grassland(0.190), soil quality(0.178), and stones and between the stones(0.105). The scoring criteria according to the assessment items and factors were marked and applied by equal intervals considering the criteria by HSI items of the narrow-mouth frog and finally the scoring criteria diagram has been proposed for the optimal site selection of the narrow-mouth frog habitat restoration.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2018년도 추계학술대회
• /
• pp.71-71
• /
• 2018

• 대한토목학회논문집
• /
• 제29권4D호
• /
• pp.473-481
• /
• 2009

본 연구는 도로이용 만족도를 평가하기 위해 기존의 통행속도, 지체 등의 정량적인 부분 뿐만아니라 교통정보, 교통안전 등의 정성적인 부분을 고려한 통합적인 서비스 평가지표를 개발하는 것이다. 새로운 평가지표는 기존의 연구결과와 전문가, 도로이용자의 설문을 통해 ANP분석방법을 이용하여 평가항목 및 가중치를 개발하였다. 개발된 평가지표를 검증하기 위하여 뇌파검지기를 통한 도로 이용자 운전 시 느끼는 정도를 측정하여 원인을 분석하여 비교한 결과 기존의 평가지표인 속도는 35%정도의 영향을 주는 것으로 나타났고 교통안전, 교통정보 등의 요인에도 많은 영향을 받는 것으로 나타났다. 따라서 본 연구에서 제시한 통합적인 평가지표는 기존의 도로이용 서비스 만족도보다 이용자측면에서 평가할 수 있고,- 도로의 미관, 교통정보, 교통안전 등의 시대의 요구를 반영할 수 있는 지표의 개발이라는데 의의가 있다.

• 한국해양공학회지
• /
• 제25권4호
• /
• pp.54-58
• /
• 2011

The need and importance of developing and utilizing the oceans, not only as sources of renewable energy and mineral resources, but also as countermeasures to global warming such as for CCS (carbon capture and storage), have continued to increase, especially in countries with limited land areas and resources. Therefore, it is necessary to assess the sustainability of an ocean utilization technology or system not only from an economic point of view but also from an ecological one. For this purpose, it might be effective to develop a comprehensive evaluation method and/or index, by which the assessment of and decisions about a technology and system can be made more objectively. It would also be useful to have an environmental simulation model, which was developed and reported in a previous research. The aim of this study was to modify a reasonable and quantitative index, with which a comprehensive evaluation system can be established, to assess environmental sustainability and risk.

• 환경영향평가
• /
• 제19권4호
• /
• pp.381-396
• /
• 2010

It is essential to consider strategies, spatial planning, and reflection of sustainability for the creation of sound urban spaces. To this end, there is a need for plans that can secure better sustainability through strategic environmental assessment (SEA) of plans. This study examined the literature and available precedent to develop a SEA model for administrative plans for urban development including metropolitan plans, urban master plans and urban management plans. In the course of development of the model, environmental issues associated with the urban plans were analyzed by classifying them into ten categories, including "spatial planning," "conservation planning," "greenbelt systems," "habitats." and etc. according to their rank. Furthermore, those issues were reflected on the development of environmental evaluation indices for the plans. Overall and detailed environmental indices that can be applied to the administrative plans for urban development including metropolitan plans, urban master plans and urban management plans were devised for five stages: (1) Establishment of development goals and strategy, (2) Analysis of current status and characteristics, (3) Conceptualization of spatial structure, (4) Planning for each department, and (5) Execution and management. Sub plans are more detailed and concrete. Criteria based on the evaluation indices, when performing evaluations on plans based on each environmental assessment index in reference to experts and the literature, were used to forecast their effects, i.e. whether they had a positive, negative, or no effect or relationship, or whether their effects was uncertain. Based on the forecasts, this study then presents means to establish more improvable plans. Furthermore, by synthesis of the effects according to each index and integration of the process, plans were analyzed overall. This study reflects the characteristics of the present time period based on issues in the SEA process and techniques in upper level administrative plans being newly established, and presents them according to the stage of each plan. Furthermore, by forecasting the effect of plans by stage, this study presents proposals for improvement, and in this aspect, can be meaningful in promoting plan improvements through SEA.

• 환경영향평가
• /
• 제11권1호
• /
• pp.25-36
• /
• 2002

The purpose of this study is to assess the environmental carrying capacity of Chongju City for the environmental management and the urban growth management. The urban environmental carrying capacity assessment of the city by the index of ecological footprint(EF), shows that the ecosystem of the city has been overloaded and most of the deficiencies has come from outside of the city. The EF index, the area of land per capita required for production and consumption in the city, was 1.731 ha per capita in 1989 and 1.901 ha per capita in 1999. On the other side, the ecologically productive land is 0.0175 ha per capita. It means that every citizen owes 1.88 ha per capita to the ecosystem in 1999. The land consumption of the city has increased by 0.1705 ha per capita during the last 10 years. The capacity of infrastructure and the service supply estimated by the Onishi model does not exceed the demand of the city in 1999. But the rapidly increasing population and fast urban growth need the expansion of the capacity. The water supply capacity of the city appears to be sufficient in 1999, but the water supply demand will increase in the future. The capacity of sewage treatment facilities seems to be sufficient, but the higher level of sewage treatment facilities should be adopted for the improvement of water quality as the generation of sewage will increase and its characteristics will also make the wastewater treatment difficult. Due to the decrease of solid waste generated, the land fill capacity for solid waste disposal is not insufficient at present, but the capacity will be saturated in the near future. Therefore, the scientific management system of solid wastes should be introduced. The air quality of the city meets both the national air quality standard and WHO recommendation standard, but the strong regulation and control of automobile emission gas such as CO, $CO_2$, NOx and HC is required for clean air.

• 환경영향평가
• /
• 제33권3호
• /
• pp.131-141
• /
• 2024

환경영향평가는 제도의 시행 이후 현재까지 국가의 지속가능한 발전을 위해 중요한 역할을 담당하고 있다. 그간 환경영향평가의 발전을 위한 다양한 연구가 이루어졌으나, 과학적이고 효과적인 환경영향평가 수행을 위한 기반 자료의 구축, 특히 개발사업의 유형에 따른 지역별 분포 현황과 개발 특성, 개발사업으로 인한 환경변화 추이, 다양한 환경요소의 시공간적 변화 등을 확인할 수 있는 정량적 자료는 현재로선 부족한 상황이다. 이를 위해 선행연구에서는 개발사업의 종류에 따른 다양한 환경영향을 정량적 지표로 구성하고, 이를 통합하여 개발사업의 친환경성을 대변할 수 있는 EA-INDEX를 마련하였으며, 현재까지 산업단지, 도시개발, 관광단지, 폐기물 소각시설, 폐기물 매립시설에 대한 EA-INDEX가 산정되어 보고되었다. 본 연구에서는 선행연구를 통해 보고된 개발사업별 EA-INDEX를 통합하고 표준화하여 국내에서 이루어진 주요 개발사업의 친환경성을 고찰하였다. 또한 주요 개발사업에 대한 지자체별 EA-INDEX를 산정하여 개발사업에 대한 환경영향을 지자체별로 구분하여 살펴보았다. 그 결과 개발사업의 친환경성은 시간이 지남에 따라 점차 증가하는 경향을 보였으며, 이는 생활환경 부문의 친환경성 증가에 기인함을 확인하였다. 사업별 친환경성의 경우 산업단지와 도시개발 사업은 생활환경 보호 부문이 사업의 친환경성에 주요한 요소임을 확인하였으며, 도로 건설과 매립시설, 관광단지 개발사업의 경우 자연환경 보전 부문이 사업의 친환경성에 대한 주요 요소로 파악되었다. 지자체별 개발사업의 친환경성 분석 결과 울산, 전남, 광주에서 추진·시행된 개발사업의 친환경성이 다른 지역 대비 높았으며, 대전, 경남, 대구에서 추진·협의된 개발사업의 친환경성이 상대적으로 낮게 나타났다. 대전에서 계획된 개발사업은 생활환경 보호 부문의 친환경성을 더욱 높일 수 있도록 사업 계획을 수립하는 것이 필요하며, 경남과 대구는 자연환경 보전 부문의 친환경성을 더욱 제고하는 것이 중요한 것으로 확인되었다. 본 연구는 국내 전반에 걸쳐 비교적 장기간에 이루어진 개발사업의 친환경성을 연도별, 지자체별로 구분하여 정량적 분석을 수행한 것에 의의가 있는 것으로 판단된다.

• 한국산학기술학회논문지
• /
• 제20권7호
• /
• pp.1-7
• /
• 2019

본 논문은 침수피해 방지를 위한 기존의 우수배제시스템의 한계점을 극복하기 위해서 신규 개발된 친환경 수로형 우수배제시스템을 비교 및 분석하고, 기존 시스템 대비 장점을 정량화하기 위한 통합평가지표의 개발 및 적용에 관한 연구이다. 이에 전과정평가(Life Cycle Assessment, LCA)의 개념을 적용하여 각 공정별 필요물량과 비용을 산정하여 비교하였고, 또한 탄소배출량을 각 과정별로 산정하여 고려하는 통합평가지표를 개발하여 각각의 기술에 적용하였다. 그 결과 원형 집수시스템에 비해 전 과정에 걸쳐 비용이 53 %, 측구 집수시스템에 비해 63 %가 절감되는 것으로 분석되었다. 또한 통합평가지표 적용결과, 기존 기술대비 수로형 집수시스템을 평가한 결과 건설공사 분야를 제외한 나머지 4가지 분야(건설자재, 운용 및 유지관리, 해체, 폐기)에 있어서 80 % 이상의 높은 점수로 평가되었다. 본 연구에서 개발된 평가지표를 경기도 안양현장과 인천 청라현장에 적용하여 기존 기술대비 약 35 ~ 100 % 개선된 높은 점수로 향상되어 개선효과를 입증하였고 동시에 적용성을 확보하였다.

• 환경영향평가
• /
• 제13권6호
• /
• pp.307-314
• /
• 2004

Among large developmental projects, those of the government and public institutions with the total budget of more than 50billion wons can be executed only when the feasibility of the project has been testified through the procedure of preliminary feasibility study. Multi-purpose dams are public structures that can supply water, produce electricity, and control flood, they belong to large national projects that require legal evaluation procedures such as preliminary feasibility study and environmental impact assessment(EIA). The index that should be considered to be important in dam plan is the migration of residents in submerged district. The importance in the preliminary feasibility study is 4.93 points(98.6 in the scale of 100 at maximum). Among the 12 assessment elements of the policy and economy in the preliminary feasibility study, the element of environment assessment is turned out to be 4.68 points in the assessment importance (93.5 in the scale of 100 at maximum), which is the second in the total ranking and the first in the field of policy, indicating that the element is very important in dam construction planning.

• Smart Structures and Systems
• /
• 제29권1호
• /
• pp.41-51
• /
• 2022

Cables are critical components of cable-stayed bridges. A structural health monitoring system provides real-time cable tension recording for cable health monitoring. However, the measurement data involve multiple sources of variability, i.e., varying environmental and operational factors, which increase the complexity of cable condition monitoring. In this study, a one-class classification method is developed for cable condition assessment using Bayesian factor analysis (FA). The single-peaked vehicle-induced cable tension is assumed to be relevant to vehicle positions and weights. The Bayesian FA is adopted to establish the correlation model between cable tensions and vehicles. Vehicle weights are assumed to be latent variables and the influences of different transverse positions are quantified by coefficient parameters. The Bayesian theorem is employed to estimate the parameters and variables automatically, and the damage index is defined on the basis of the well-trained model. The proposed method is applied to one cable-stayed bridge for cable damage detection. Significant deviations of the damage indices of Cable SJS11 were observed, indicating a damaged condition in 2011. This study develops a novel method to evaluate the health condition of individual cable using the FA in the Bayesian framework. Only vehicle-induced cable tensions are used and there is no need to monitor the vehicles. The entire process, including the data pre-processing, model training and damage index calculation of one cable, takes only 35 s, which is highly efficient.