EVALUATION OF ALTERNATIVES IN TRANSPORTATION PLANNING USING MULTI-STAKEHOLDERS MULTI-OBJECTIVES AHP MODELING

Transportation planning involves many stakeholders and objectives which are commonly conflicted. This study applied Analytic Hierarchy Process (AHP) to transport decision making. Related social interest groups were modeled in the decision process to reflect social preference. Relative importance of each attribute in AHP was modeled by combining engineering model with decision model. A cas e study of alternative motorway alignments in Thailand was conducted. Impacts were estimated by the aid of Geographical Information System (GIS) and AHP model developed. Composite weighted AHP scored were used to generate AHP decision surface. Finally, the best alignment was proposed by generating a least cost path which is most socially preferable.