Evaluation of sustainability components at passenger airports by extension of interval type-2 Fuzzy DANP technique

Sustainability components have received increasing attention at passenger airports to improveservice quality and preserve the environment while reducing costs. Although sustainabilitycomponents can bring a lot of advantages, they are not familiar for many airports’ managersespecially in developing countries like Iran. That is why after performing interval type-2fuzzy Delphi technique; mutual relationships of the components are investigated byapplication of interval type-2 fuzzy DEMATEL technique. It is remarkable that such anintegrated approach toward determining components has led to a set of components that areconcise and also sufficiently comprehensive. Meanwhile, interval type-2 fuzzy DEMATELtechnique is helpful in determining which components have affections on others. Suchknowledge about relationships among components makes it possible to lead them in the rightdirection by directing influencing components properly. Finally, the weights of thecomponents are determined by interval type-2 fuzzy extension of DANP technique in order tospecify which component has the greatest priority in making passenger airports moresustainable. This extended technique considers the mutual relationships of components andcan keep uncertainty though the whole steps of determining their weights. Results show thatpolicy making (C1) and social responsibility (C10) have the highest weights and the greatesteffects on other components of the system. So, airport managers should consider suitablevisions, strategies and defined milestones for every aspect of sustainability while policymaking and pay special attention to the airport social responsibility through this way.

Keywords:

DANP technique , Delphi technique , DEMATEL technique , Interval type-2 fuzzy sets , Passenger airports administration , Sustainable airport