We are responsible for developing Australian Noise Exposure Index (ANEI) contours for Sydney Airport. ANEI contours are based on historical data and show the average daily aircraft noise exposure over the specified period.

The ANEIs for 1 January 2018 to 31 December 2024 are shown below.

Earlier ANEI Reports

Previous reports are available on request.

Technical Information

The ANEI contours were generated using United States Federal Aviation Administration (US FAA) Airport Environmental Design Tool (AEDT). 

The following key inputs were used to develop the AEDT model:

• the default Sydney Airport layout was used in AEDT, which contained data for runway ends and thresholds – the helipad location was manually added at – 33.94 latitude, 151.19 longitude and elevation of 20 feet
• aircraft movement data and radar flight tracks for the year were input from our Noise and Flight Path Monitoring System (NFPMS)
• standard arrival and departure profiles were used
• aircraft vertical profiles (i.e. stage lengths) were based on the distance travelled to or from each origin destination
• where possible, the correct aircraft types in AEDT were used to represent actual aircraft movements – some aircraft types that do not exist in AEDT version 2d were substituted based on similar size and weight
• default meteorological conditions in AEDT were used
• terrain information was incorporated into the model.