CO₂ REDUCTION POTENTIAL BY AIRCRAFTS TRAJECTORY OPTIMIZATION CONSIDERING FUEL CONSUMPTION MINIMIZATION AND ITS BENEFIT EVALUATION

Abstract

In Japan, the introduction of SAF, a sustainable aviation fuel, has been attracting attention as an initiative to reduce CO₂ emissions in the field of flight operations, but it is also necessary to fully consider the reduction effects of improving flight operation methods, which are highly feasible in the short term. In addition to flight path improvements such as route shortening, CO₂ reduction through trajectory optimization including speed reduction is also considered to be beneficial, but the effectiveness and feasibility of such improvements have not been fully clarified. In this study, we estimated the fuel reduction potential of the Haneda-Fukuoka route using trajectory optimization. The results show that the CO₂ reduction effect differs depending on the route, and the factors that contribute to the difference are discussed. In addition, the impact of speed reduction on the benefits for passengers and airlines was analyzed, and future CO₂ reduction measures were discussed.