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首页> 外文会议>NATO Advanced Study Institute on Strategic Management of Marine Ecosystems; 20031001-11; Nice(FR) >MULTI-CRITERIA DECISION ANALYSIS: A FRAMEWORK FOR MANAGING CONTAMINATED SEDIMENTS
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MULTI-CRITERIA DECISION ANALYSIS: A FRAMEWORK FOR MANAGING CONTAMINATED SEDIMENTS

机译：多标准决策：处理污染沉积物的框架

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摘要

Decision-making in environmental projects can be complex and seemingly intractable, principally due to the inherent existence of tradeoffs between sociopolitical, environmental, and economic factors. One tool that has been used to support environmental decision-making is comparative risk assessment (CRA). Central to CRA is the construction of a two-dimensional decision matrix that contains project alternatives' scores on various criteria. The projects are then evaluated by either qualitatively comparing the projects' scores on the different criteria or by somehow quantitatively aggregating the criterion scores for each project and comparing the aggregate scores. Although CRA is laudable in its attempts to evaluate projects using multiple criteria, it has at least one significant drawback. That drawback is the unclear or unsupported way in which it combines performance on criteria to arrive at an optimal project alternative. In the case of qualitative comparison of project scores using CRA, it can be unclear why an alternative is chosen if it performs better only on some criteria compared to another alternative. Quantitative CRAs are often unsupported in how they determine the relative importance of each criterion in determining an aggregate score for each alternative. Multicriteria decision analysis (MCDA) not only provides better-supported techniques for the comparison of project alternatives based on decision matrices but also has the added ability of being able to provide structured methods for the incorporation of project stakeholders' opinions into the ranking of alternatives. In this paper, we provide a brief overview of common MCDA techniques and their use in regulatory agencies in the USA and EU. Then, we discuss existing literature in which MCDA techniques have been applied to decision-making involving aquatic ecosystems including decisions related to the remediation of contaminated sediments. Finally, we develop a straw man decision analytic framework specifically tailored to deal with decision-making related to contaminated sediments.
机译：环境项目的决策可能很复杂，而且看似棘手，这主要是由于社会政治，环境和经济因素之间固有的权衡取舍。用于支持环境决策的一种工具是比较风险评估（CRA）。 CRA的核心是构建二维决策矩阵，其中包含各种标准下项目替代方案的得分。然后通过定性地比较不同标准下的项目得分或通过某种方式定量汇总每个项目的标准得分并比较总得分来评估项目。尽管CRA尝试使用多种标准评估项目值得称赞，但它至少具有一个重大缺陷。缺点是尚不清楚或不受支持的方式，无法结合标准的性能来获得最佳的项目替代方案。在使用CRA对项目得分进行定性比较的情况下，如果仅在某些条件下比另一种方法表现更好，就不清楚为什么选择了这种方法。定量CRA在确定每个备选方案的总分时，如何确定每个标准的相对重要性时通常不被支持。多准则决策分析（MCDA）不仅为基于决策矩阵的项目备选方案比较提供了更好支持的技术，而且还具有能够提供结构化方法以将项目利益相关者的意见纳入备选方案等级的附加功能。在本文中，我们简要概述了常见的MCDA技术及其在美国和欧盟监管机构中的使用。然后，我们讨论了现有文献，其中将MCDA技术应用于涉及水生生态系统的决策，包括与污染沉积物修复有关的决策。最后，我们开发了一个专门用于处理与受污染的沉积物相关的决策的稻草人决策分析框架。

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