A green fleet planning framework: assessment and improvement strategies

Abstract

Under the enforcement of stringent regulations to preserve environment, airlines encounter increasing financial burden particularly in paying pollution fines. This could be avoided if airlines could improve their environmental (green) performance. This paper proposes a novel methodology to quantify airline's green performance. A 'Green Fleet Index (GFI)' framework is formulated by capturing three major environmental factors, namely aircraft emission, noise and fuel efficiency. The proposed framework also allows the evaluation of various improvement strategies to yield a greener performance. A realistic case study, with 38 international routes, is presented to examine the applicability of the developed framework. The findings show that aircraft emission, noise and fuel efficiency could affect the green performance of airlines to a great extent. Furthermore, the results point out the effectiveness of a particular mitigation strategy that performs differently on specific environmental factors (emission, noise and fuel efficiency). It is anticipated that this study may reveal some beneficial insights for airlines to operate in a sustainable and environmental manner, which would benefit air travellers as well as the community in return.

Identification of Noise Generated by Driving Set of Autogyro Using an Acoustic Camera

“…The results presented in this article are part of the work aimed at the development of autogyros also in the context of reducing noise emissions. As described in the literature, the three most important environmental factors in the field of air transport are emission of toxic pollutants, noise and fuel consumption [11,12,17]. Noise is generated by all sorts of aircraft sets, and in particular by propulsion systems.…”