Viewing the changes in community annoyance due to aircraft noise over the times

More than 60 years have passed since the introduction of jet aircraft to civil aviation, and technological innovations have made aircraft much quieter. Nevertheless, people still complain that they experience serious suffering from aircraft noise. This paper overviews and considers the changes over the times both in the aircraft sound exposure level and in the community annoyance caused by aircraft noise. It will also discuss the issue of recent noise complaints associated with the introduction of performance-based flight navigation as well as view the impact of pandemics over the past two years.