Aircraft noise is managed by airport use planning, international noise regulations, development of engine technology and land use planning.
Aircraft noise controlling is comprehensive long-term work that aims for specifying operating practices for reducing noise pollution. The most important goal is to have as few people as possible to live within the area of aircraft noise. Finavia works in close cooperation with municipalities located in the vicinity of airports and routes to allow municipalities to take noise areas and their vicinity into account when planning new residential areas.
Methods for controlling aircraft noise include runway use principles and flight route planning. These actions direct traffic to the least populated areas within the limits of flight safety regulations. At Helsinki Airport, for example, noise pollution is reduced by choosing aircraft takeoff and landing directions. Flight route planning can reduce noise substantially during takeoffs.
The noise management plan of Helsinki Airport describes all the essential methods for reducing and controlling the noise caused by Helsinki Airport.
Safety issues present special challenges to noise control during landings because the final approach is made in line with the runway and the altitude and distance to the runway are controlled with the landing equipment. Maintaining the safety distance between aircraft landing on the same runway is important especially during peak hours.
Aircraft equipment is subject to international noise regulations and due to general technological development new aircraft produce significantly less noise than the older ones.