• Title/Summary/Keyword: Evaluation criteria of environmental assessment

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Decision Methods for Evaluation of Alternatives (대안 평가를 위한 의사결정 기법)

  • Nam, Kie-Chang;Hong, Sang-Pyo
    • Journal of Environmental Impact Assessment
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    • v.9 no.4
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    • pp.363-372
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    • 2000
  • For any particular development project or environmental regulations, decision-making criteria is required and conflicts among criteria should be resolved. It is necessary to investigate criteria that government agencies employ in making decisions that influence the environment. The evaluation of alternative development proposals and regulatory measures involves much more than environmental issues. Economic, technical, and social factors should be considered along with environmental impacts when making evaluations. Evaluation should be based on values of all individuals who may be affected by public or private decisions. There are many evaluation methods for determining how individuals and groups value alternative public actions. Numerous weighting-scaling methodologies can be used in such evaluations. These methodologies represent adaptations of multiple-criteria or multiple-attribute decision-making techniques. Environmental risk assessment which accounts for uncertainties in choosing among alternative policies and projects is increasingly used.

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Development of Forests Ecosystem Assessment Technique of Environmental Impact Assessment(I) : In the Case of the Sanchong Pumping-up Power Plant of Mt. Chiri (환경영향평가중 삼림생태계 평가기법 개발 (I) : 지리산 산청 양수발전소 건설예정지를 중심으로)

  • Choi, Song-Hyun;Lee, Kyong-Jae
    • Journal of Environmental Impact Assessment
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    • v.4 no.2
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    • pp.71-91
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    • 1995
  • In order to develop an appropriate set of criteria applicable for environmental impact assessment (EIA) of natural forest 8 items are proposed. The criteria are vegetation distribution area (DA), distribution pattern (DP), size (S), diameter of breast height of tree (DBH), humus (H), sustainment (ST), successional stage (SS) and impact of adjacent ecosystem (IAE), Each criterion has an interval which minimum 1 score to maximum 5 score Forest Evaluation Index (FEI) was obtained as the sum of 8 criteria value. Above 70% is considered to be absolutely conservative and from 50% to 70% range of total score is to be considered conservative. In the case of the Sancho˘ng Pumping-up Power Plant of Mt. Chiri, 8 criteria were applied base on actual vegetation map. Pinus densiflora community got 73%(29 scores) and Quercus variabilis - Q. serrata community got 60%(24 scores). This may be said that this local vegetation has high ecological potentiality. These criteria cannot always be absolutely evaluation tool. So it is expected to take the more time to be developed further, and holistically added by the other field such as fauna, geological feature etc.

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Development of Forest Ecosystem Assessment Technique of Environmental Impact Assessment(II) : Nature Evaluation of Vegetation (환경영향평가중 삼림생태계 평가기법개발(II) : 녹지의 자연성평가)

  • Choi, Song-Hyun;Lee, Kyong-Jae
    • Journal of Environmental Impact Assessment
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    • v.5 no.2
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    • pp.33-47
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    • 1996
  • To select the criteria, literature review was made in the quantitative case of conservation biology, foreign country's EIA and domestic ecology. Among them, a few factors was extracted. To applicate the criteria to domestic forest ecosystem, expert opinion survey was executed to the ecologist. The results were summarized as follows; 1. Classification of sites was made of land use system which is related to forest ecosystem or forest conservation. Sites are divided into 3 categories which are nature preservation area, seminature preservation area and urbanized area. Evaluation criteria is consisted of rarity and naturalness. 2. Each area had different criteria composition according to the site characteristics. Criteria of nature preservation area is rarity in the broad sense (distribution pattern of vegetation), vegetation size, successional stage and depth of organic matters. Those of seminature preservation area are rarity in the broad sense (distribution area of vegetation), vegetation size, successional stage, diameter at breath height and depth of organic matters. And those of urbanized area are vegetation distribution in area, successional stage, age of forest and diameter of breath height. The basic data of criterion was gathered by field survey. 3. Evaluation index and total naturalness index was obtained by adding the each criterion. It is made up of two categories-rarity and naturalness. TNi is divided into 3 grades. Grade I is more than 70% for TNi, grade IT is 50~70%, and grade III is below 50%. According to the each grade, permitted action and facilities were suggested.. This research just focuses on the evaluation of vegetation quality and the assessment results do not directly judge conservation or development. To make better evaluation criteria, various fields of forest ecosystem-geological or physical nature environment and fauna ecosystem etc. -will be added wholly to this research.

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Development of a method for calculating weights of evaluation criteria for proper selection of urban waterfronts (도심 친수공간 적지선정을 위한 평가기준의 가중치 산정방법 개발)

  • Kim, Sung-Man;Lee, Jae-Choon;Park, Min-Jung;Kwon, Jai-Bum;Lee, Yong-Woon
    • Journal of Environmental Impact Assessment
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    • v.21 no.5
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    • pp.683-693
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    • 2012
  • The urban waterfront well created, could provide mental stability and comfort and also foster personality. In addition it could provide the calmness and rest of mind. Especially, recently the urban waterfronts are restored here and there and are created whenever developing a new town The purpose of this study is to develop a method of calculating the weight of each evaluation criterion for deciding the priority of restoration among for deciding the priority of restoration among the urban waterfronts. The method includes the analytic hierarchy process that can calculate the reasonable weight of each evaluation criterion, because the importance (weights) of evaluation criteria appears to be different among the evaluators; the results of this study can be summarized as that this method can be useful for calculating the weights of evaluation criteria, and also that the superiority of ecological resources is the most important factor (highest weight) in selecting the best waterfront, followed by accessibility, tourism vacation, and proximity to parks. And then the lowest factor in importance is the scale of reservoir.

Study on the Establishing a Guideline for Selecting Major Environmental Factors by the Project Type Criteria in EIA (환경영향평가 대상사업별 중점평가항목의 도출에 관한 연구)

  • Sung, Hyun-Chan;Han, Sang-Wook
    • Journal of Environmental Impact Assessment
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    • v.3 no.1
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    • pp.9-30
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    • 1994
  • Environmental Impact Assessment System, ever since its enactment in Korea fourteen years ago, has been steadily improved by introduction and implementation of new concepts and methodologies which include Environmental Impact Statement(EIS) preparation technique, selection of environmental factors, and the like. However, current guideline requires that every EIS, regardless of the specifics of the project type or characteristics of the site, must evaluate and study for all twenty-two environmental factors as set forth in the regulation. The situation causes many undesirable problems like; lack of site specific evaluation in most EISs, over-sized EIS drafts, consuming too much time and costs for EIS preparation, and so on. The objectives of this study are: - To establish a set of criteria to classify the types of the projects in terms of features of the project content and the characteristics of the site area. - To establish a guideline for selecting major environmental factors of the project type criteria, and - To provide basic materials for the preparation of complets draft EIS of the Amendment of Environmental Impact Assessment Act.

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Application of Rapid Impact Assessment Matrix for Environmental Impact Assessment (환경영향평가에서 있어서 신속영향평가(RIAM) 기법 적용방안)

  • Yang, Won-Ho;Kim, Im-Soon;Choi, Won-Wook;Han, Sang-Wook
    • Journal of Environmental Impact Assessment
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    • v.11 no.3
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    • pp.223-230
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    • 2002
  • The rapid impact assessment matrix (RIAM) might be a new tool for performance of an environmental impact assessment (EIA), comparing with many traditional methods of EIA, which have produced large reports setting out the subjective judgement reached by the assessors. The main criticisms of E1A are in part a natural result of the traditional method used. RIAM uses a structured matrix to allow for such judgement, both subjective and those based on quantitative data, to be made on a like-by-like basis, and provided a transparent and permanent record of the judgement made. Also, the computerized RIAM system using software program allows for the matrix to be shown in graphical form, which greatly enhances the clarity of the results produced by this method. RIAM provides a system by which development options and scenarios can be rapidly evaluated. To illustrate the use of RIAM, an example from an EIA study using application of scoping by assessment criteria in Environmental Impact Regulation of Korea was given. The criteria that might be used to evaluation EIA methods, and how RIAM measures up against these criteria, are discussed.

Environmental Assessment for Decision Making in Water Resources Projects (수자원사업 의사결정 지원을 위한 환경성 평가 방안)

  • Kim, Gil-Ho;Kim, Woo-Chan;Yeo, Gyu-Dong;Yi, Choong-Sung
    • Journal of Wetlands Research
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    • v.13 no.2
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    • pp.291-306
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    • 2011
  • It is important to evaluate the environmental effect before performing the project and it should be tried to minimize the negative effects through the project planning based on the evaluation. This study aimed to determine environmental criteria and suggest the procedure for evaluating and scoring the environmental change through water resources projects. In evaluation criteria it was involved in water quality, landscape and ecosystem. And we suggested a valuation indicator and utility functions using MAUT in each criteria determined. In assessment procedure, it is involved in quantitative or qualitative estimation at before and after of project. Meanwhile, we suggested that it is desirable to determine the relative weighting of criteria whenever individual project's assessment performed for considering characteristics of the project. To this end, we verified the applicability of the procedure suggested on case. From this study, it will be used in decision making process of water resource project involved in environmental attributes.

A Study on a Plan Adequacy Evaluation forIndustrial Complex Development Considering Health Impact (건강영향을 고려한 산업단지 개발의 계획 적정성 평가방법론 연구)

  • Shin, Moonshik;Lee, Youngsoo;Ha, Jongsik
    • Journal of Environmental Impact Assessment
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    • v.29 no.2
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    • pp.93-111
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    • 2020
  • Health Impact Assessment (HIA) in Korea is conducted for specific development projects within Environmental Impact Assessment (EIA) system. However, as HIA is being carried out in the implementation stage of the development project, it sometimes has failed to take proper actions despite the significant adverse health impact. Considering an environment conflict regarding adverse health impact in developing industrial complex and the current application of HIA in EIA system, it is necessary to come up with an adequacy evaluation in the industrial complex development considering health impact. This study proposes an adequacy evaluation method considering health impact for the industrial complex development and embodies the method by applying it to actual cases. Referring to methodologies of US EPA's CalEnviroScreen 3.0 and US ATSDR's Public Health Assessment, this study proposed using indicators divided by community characteristic, background exposure and development burden as an adequacy evaluation method to consider health impact. Five indicators for community characteristic, three indicators for background exposure and seven indicators for development burden were selected through literature survey, and the weights for each indicator were calculated through Analytic Hierarchy Process's survey of experts related to HIA. Through a pilot application in the three government-led industrial complex development projects, the method was further elaborated by clarifying the evaluation data and subdividing the evaluation criteria for each indicator. Adequacy criteria of plan considering health impact could be presented in three ways to be linked to the government's policy stance on the industrial complex development criteria of total score, criteria of total score and community characteristic score, and criteria of total score and community characteristic allowed by development burden.

Improvement of the Criteria on Naturalness of the Environmental Conservation Value Assessment Map (ECVAM) (국토환경성평가지도 자연성 평가기준 개선)

  • Song, Wonkyong;Kim, Eunyoung;Jeon, Seong Woo;Park, Sangho;Lee, June
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.15 no.2
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    • pp.31-40
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    • 2012
  • The Environmental Conservation Value Assessment Map (ECVAM) is a five grade assessment map created with nationally integrated environmental information and environmental values. The map is made through the evaluation of 65 items, including greenbelt area and naturalness. Naturalness means original state of nature, and it is one of the most important evaluation items for conserving nature. The criteria of naturalness includes the Degree of Green Naturality (DGN) made by MOE. Using the data which has been not updated is a problem of accuracy for ECVAM. Therefore, this study would like to improve the criteria of naturalness. To improve the criteria, the study examined the effectiveness of DGN using field survey. The results of analysis the naturalness without DGN, some area changed grade of naturalness have been already damaged or cleared for agriculture and industrial purposes. The grade of naturalness should be included the concept of vegetation transition like DGN. The study suggested a improved method using vegetation type (natural and planted forest), forest age, and the grade of vegetation conservation. The method was reviewed by experts and field survey. After applying the method in South Korea, the grade of naturalness were distributed evenly like GradeI is 38.87%, GradeII is 37.62%, GradeIII is 23.51%, respectively. From the results of field survey, over 4 grade of forest age in natural forest showed similar pattern of structure and composition in original forests. Therefore, the improved criteria explained the naturalness better than existing criteria, and the accuracy of ECVAM has been improved more.

A Study on the Final Evaluation Criteria of Allocation Exceedance Regional in Total Maximum Daily Load (오염총량관리 할당부하량 초과지역의 최종 평가기준에 관한 연구)

  • Oh, Seung Young;Han, Mideok;Kim, Seok Gyu;Ahn, Ki Hong;Kim, Oksun;Kim, Yong Seok;Park, Ji Hyoung
    • Journal of Korean Society on Water Environment
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    • v.32 no.5
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    • pp.450-457
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    • 2016
  • The Total Maximum Daily Load (TMDL) is a watershed management system that involves the establishment of the target water quality, the calculation of permission loading (allocation loading), and the control of total pollutants for each unit watershed. Allocation loading is assessed through the comprehensive implementation assessment of the previous year's plan. Assessment results are used for follow-up management measures such as the limit of development and updating of TMDL Management Implementation Plans for the next planning period. Although detailed assessment criteria are important, they are not currently available. Therefore, we suggested assessment criteria by comparing two methods('integration method' and 'separation method') using combination point and non-point discharge loading. We also examined the penalty criteria considering controllable load local government and updating methods of the TMDL Management Implementation Plan for the next planning period.