Evaluating Actions Towards Sustainable Aviation: A Case Study Using Action Interdependence in Multiple Criteria Decision Making

Multiple criteria decision analysis with action interdependence is presented of potential investments for the aviation industry to reduce greenhouse gas (GHG) emissions. The aviation industry has an interest in increased efficiency due to political and public pressure to reduce GHGs, and a finite fuel supply that will lead to increased costs. This analysis utilizes four criteria (return on investment, carbon dioxide (CO₂) emissions, minimal disruption, and popularity) to evaluate combinations of actions. Possible interdependencies between any two actions are also taken into account. This paper ascertains that the use of algae bio fuels and high bypass engines are the most preferred actions based on the synergistic interdependence between these two actions. The results of the study are supported by the preferences of the aviation industry as described in public releases.