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Green delay programes, absorbing ATFM delay by flying at minimum fuel speed
Prats Menéndez, Xavier; Hansen, Mark
Universitat Politècnica de Catalunya. Escola d'Enginyeria de Telecomunicació i Aeroespacial de Castelldefels (EETAC); Universitat Politècnica de Catalunya. ICARUS - Sistemes Aviònics i de Comunicació Intel·ligents per Avions no Tripulats Fiables
Delaying aircraft on ground is one of the most used strategies when an imbalance between planned demand and actual capacity arises, either at an airport or in an airspace sector. This paper focuses on a new strategy consisting in delaying aircraft from their nominal cruise speed to the minimum fuel consumption speed. Therefore, trip times are increased and air traffic management delay can be partially performed in the air. For these flights, fuel consumption is reduced and consequently, their environmental impact. Based on data from ground delay programs at San Francisco International airport during 2006, this paper quantifies the impact that such a strategy would have had if applied to all delayed flights. Results show that for the majority of flights, the 5% to 15% of the initially assigned delay could have been absorbed in the air, leading to fuel savings in the order of 4% to 7% for each individual flight, if compared with the nominal situation
Peer Reviewed
Àrees temàtiques de la UPC::Aeronàutica i espai::Impacte ambiental
Airplanes--Fuel consumption
Airplanes--Environmental aspects
Airborne delay
Delay management
Fuel management
Speed reduction
Air traffic flow management (ATFM)
Ground delay program
Environmental impact
Avions -- Consum de combustible
Avions -- Aspectes ambientals

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