Aim: The objective of this study is to develop a fuzzy logic based model that will support the systematic decision making process on the feasibility of high-rise buildings and thus to gather experts and investors in the common denomination. In this way, it is aimed to be able to find a common ground investors and specialists in their field. Method: In this study, within the context of environmental impacts of high-rise buildings, together with the concern of mathematization and building a ground for verbal expressions such as expert opinions, parameters such as amount of land, land unit price, registered building density and population density in the environment are selected as input and their variables are established. Sugeno type fuzzy model is used in the modeling and “weighted average” type method is established as the clarification method. The Matlab Fuzzy Toolbox module is used to validate the applicability of this system. Results: The logical rules to be applied to the fuzzyfied model are defined in the IF-THEN expressions system. System can be defined 16 rules in total. If the amount of land (vacancy) is low, the land prices are low, the registered building density is high, and the people density is low, the result that should logically come out is the necessity of not making a high-rise building in such a region. The results are also produced and evaluated for intermediate values. Conclusion: The model utilizing verbal variables as inputs has provided highly reliable results in the decision of the feasibility of high-rise buildings and also has provided consistent results for the intermediate values that are difficult to infer. The model will have the ability to handle all regions of the world with minor revisions and adaptations.
Keywords: Tall Buildings, Fuzzy Sets, Fuzzy Decision Making