With today's travellers wanting to travel by air more frequently and in greater numbers, our airports are rapidly reaching capacity. Some are investing into expanding their operations to accommodate additional flights and passengers. But for many airports, particularly in high density areas, expansion is not an option.
More flights equals more noise around airports, so increasing the number of flights has a large impact on residents living close to airports. Finding ways to reduce noise is an important challenge for the aviation industry, along with other related issues like reducing local air pollution and traffic congestion.