This combines noise reduction at source with land-use planning and management, operational improvements and flight restrictions. ICAO advocates a balanced approach to noise reduction. In fact, ICAO estimates that between 19, the number of people exposed to aircraft noise around the world was reduced by 35%. The certification was one of several measures to reduce engine noise. This ensures the quietest technology will be used on future aircraft. It stipulates that new aircraft models need to be at least seven decibels quieter than those built to the previous Chapter 4 standard. In 2013, the International Civil Aviation Organization (ICAO), the United Nations’ intergovernmental body on aviation, introduced Chapter 14, a new standard in noise reduction.
It is estimated that the noise footprint of each new generation of aircraft is at least 15% lower than previous models.
For decades, the industry has been working to reduce noise, with significant progress: noise levels have halved in the past 10 years. Aircraft noise can be disturbing to those who live around airports.
