An Intelligent GIS-Based Route/Site Selection Plan of a Metro-Rail Network

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Abstract

The goal in any route/site selection problem is to find the best location with desired conditions that meet predetermined selection criteria. In such a process, manipulation of spatial data of multiple criteria is essential to the success of the decision making. Conventional geographic information systems (GIS), while recognized as useful decision support technologies, do not provide the means to handle multiple decision factors. A GIS-based system, however, appropriately combined with spatial multi-criteria decision analysis (SMCA) techniques may become to be capable of transforming the geographical data into a decision. A hierarchical decision tree model is developed to join and prioritize the diverse engineering, economical, institutional, social and environmental objectives. An illustrative study of a metro-rail route/site selection process of an urban transportation project is also presented.