Options for aircraft noise reduction on arrival and landing

Abstract

This paper demonstrates the noise reduction potential from modified final approach and landing procedures of commercial aircraft. A conventional trajectory is compared with a steep approach with a 4.5-degree glide slope (first option), and with a displaced landing, wherein an aircraft approaching with a 3-degree slope is allowed to land with a second threshold (second option). The reference airplane is the Airbus A320-211. Examples of noise footprints are shown for generic cases of constant ground impedance. It is shown that a noise reduction of −1 EPNL reduction is possible with a 450 m landing displacement or with a 3.5 degree glide slope. Noise reduction occurs below the flight track and moderate lateral distances. It is also shown that at larger lateral distances, 200 m or above, the noise level increases compared to the reference case. The ground model has been extended to include variable impedance and actual airfields. Finally, it is shown that an Embraer E195 model landing on a steep trajectory has a reduced noise almost everywhere in a selected region around the airfield.

Pollution and noise reduction through missed approach maneuvers based on aircraft reinjection

“…Filippone has made important contributions to aircraft noise simulations. With respect to our work, his paper (Filippone, 2017) is of particular interest. The results show the benefits of noise reduction when modifying the steep approach or displacing the touch-down point in the landing maneuver.…”

“…Focusing on the scope of the paper, many works have modeled or measured noise and pollutant emissions in landing maneuvers of civil aircraft. For instance, (Andarani et al, 2018;Filippone, 2017;Isermann and Bertsch, 2019;Simons et al, 2022) are devoted to noise, (Dancila et al, 2013;Chati and Balakrishnan, 2014;Murrieta-Mendoza and Botez, 2016;Zhou et al, 2019) are devoted to fuel consumption and gas emissions, and Mahashabde et al (2011), Salah (2014), Rodríguez-Díaz et al (2019 consider both emissions, pollutants and noise.…”

Pilot Assistance Systems for Energy-Optimized Approaches: Is It Possible to Reduce Fuel Consumption and Noise at the Same Time?

“…Many initiatives have also focussed on optimizing vertical profiles and arrival procedures. Thereby, continuous descent approaches were identified as beneficial in terms of fuel consumption and noise [16][17][18]. Filippone et al also studied the steepness of descent as an additional optimization parameter [18].…”

“…Thereby, continuous descent approaches were identified as beneficial in terms of fuel consumption and noise [16][17][18]. Filippone et al also studied the steepness of descent as an additional optimization parameter [18]. Recently, Otero et al [19] analyzed flight data recorder (FDR) data from Boeing 737-800 approaches and confirmed that fuel consumption and CO 2 can be reduced in parallel with the noise footprint on the ground.…”