10.2190/3U8P-K0YL-6DWD-PT1Q 3U8PK0YL6DWDPT1Q 175 NUMERIC ORDERED WEIGHTED AVERAGING OPERATORS: POSSIBILITIES FOR ENVIRONMENTAL PROJECT EVALUATION 175 191 20021120 20021120 20021120 20021120 3U8PK0YL6DWDPT1Q.pdf http://baywood.metapress.com/link.asp?target=contribution&id=3U8PK0YL6DWDPT1Q 3 P. N. SMITH The University of Queensland, St. Lucia, Australia This article outlines aspects of ordered weighted averaging (OWA) aggregation operators in the evaluation of alternative projects with environmental consequences. OWA operators generalize the conventional maximum and minimum aggregation operators commonly use to aggregate fuzzy subsets, here representing the degree of "satisfaction" of factors/impacts by a set of discrete projects. A simple example drawn from Horsak and Damico is given which involves the location of a hazardous waste disposal facility at one of three sites based on ten factors [1]. 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