Which method is effective in controlling noise from aircraft using an airport?

Using noise abatement and restricting flight paths is a highly effective method for controlling aircraft noise around an airport. Noise abatement involves implementing procedures that minimize noise impact from departing and arriving aircraft. This can include specific flight paths that avoid populated areas, adjustments in altitudes, and timing of flight operations to conduct louder activities during less sensitive hours.

Restricting flight paths means directing aircraft along designated routes that are less likely to disturb communities, effectively reducing complaints and the overall impact of noise pollution in affected regions. Airports often work closely with airlines, flight crews, and local governments to develop these measures, which not only help in managing noise levels but also in ensuring compliance with local regulations and maintaining good relationships with nearby residents.

Other methods presented, such as increasing flight hours or limiting aircraft size, may not address the underlying issue of noise directly. Increased flight hours could lead to more noise disturbances, limiting operations and aircraft size may not necessarily result in significant noise reduction due to other factors like operational procedures and technology used in aircraft design. Building noise barriers can help to some extent, but their effectiveness is often limited by factors such as height, location, and the nature of the barriers themselves. Therefore, the strategic approach of noise abatement and flight path restrictions remains the