Abstract
A decision framework is presented for a class of multicriteria decisionmaking (MCDM) problems, arising in the context of urban transportation planning, where the set of options is finite, impacts are uncertain, and risk attitudes and value trade-offs cannot be established or assessed a priori. The characteristics of the decision environment and behavioral aspects of individual decisionmaking and judgement are synthesized in a set of basic considerations underlying the design of the methodology and specifying its features. The focus of the paper is on those basic considerations and their integration into the decisionmaking framework. The framework consists of three phases: (1) elimination by aspects which reduces the set of Pareto-optimal options, (2) pair-wise comparisons which yield a partial semi-order, and (3) a global comparison which uncovers the most preferred option.
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