When comparing ANEF 2039 with the previous ANEF, the noise contours show that more people and homes are affected than before. Why is that?

Australian Noise Exposure Forecasts (ANEF) are developed as a land use planning tool to manage noise sensitive land uses around the airport.  They provide guidance for the NSW Government and local councils to make informed planning and development decisions.  Each new airport master plan must include an updated ANEF.  The ANEF in Master Plan 2039 reflects the latest information available including technological changes to aircraft, meteorological data and revised passenger and freight air traffic forecasts for the master plan’s 20 year planning period.

As a result of this new information, the ANEF contours in the new ANEF are different to those in the one it has replaced.

In some areas to the north, north-east and south-east of the airport, the noise contours move further away from the airport.  In some areas to the east, south and west of the airport, the contours move closer to the airport.

These changes are a result of a number of factors, including:

  • The number of aircraft flying to or from Sydney Airport is forecast to increase from 348,500 in 2017 to 408,260 in 2039
  • Western Sydney Airport opens from late 2026
  • The proportion of international flights, which typically use larger aircraft and require use of the main runway, is forecast to grow from 21% in 2017 to 28% in 2039
  • The updated ANEF reflects the more balanced use of Sydney Airport’s two parallel north-south runways
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