Noise modelling
Master Plan 2039 includes extensive modelling to forecast future noise exposure. The modelling assumes that the existing flight paths will remain unchanged throughout the planning period.
The noise modelling results have been described in a number of ways:
ANEF – Total Noise – The Australian Noise Exposure Forecast (ANEF) is a land use planning tool to manage noise sensitive land uses around Sydney Airport. It provides guidance for the NSW Government and local councils to make informed planning and development decisions. The ANEF forecasts the total aircraft noise over a year, typically the final year in the 20-year planning period for the airport’s master plan.
N70 – Frequency Based Aircraft Noise – For the community, it is important to know how many times a particular noise level will be exceeded in an area. For this reason, frequency-based measures of aircraft noise are used. Typically, contour maps showing the number of aircraft events louder than 70 dB(A) are used. These are known as N70 contours.
Respite – Quiet periods – Many in the community place a high value on having periods of “respite”, that is periods of time when there are no aircraft flying overhead. Respite charts are used to describe these quiet periods.
Curfew – Night Noise – Sydney Airport has a curfew from 11pm to 6am where operations are restricted to specific types of aircraft or operations and specific runway assignment rules. Curfew charts are used to describe aircraft during the curfew period.
Previous
Next 
