In Hong Kong the Civil Aviation Department (CAD) has statutory responsibility for managing and mitigating aircraft noise.
A number of noise minimising measures have been implemented by the CAD to reduce aircraft noise at night. The CAD monitors the adherence of aircraft to defined flight paths and continuously monitors noise levels and answers enquiries and complaints from the public relating to aircraft noise.
Noise reduction measures include:
- Avoiding aircraft overflights in densely populated urban areas;
- Using noise abatement departure procedures for North East departures (aircraft must reach higher altitudes in a shorter distance);
- Requiring South West approaches over water whenever possible; and
- Requiring continuous descent approaches for flights arriving from the North East.
Full details on the CAD's aircraft noise management efforts are available on the CAD's website.