Operational Restrictions can be classified into four broad categories:
- Global restrictions apply to all air traffic movements and generally relate to cumulative noise levels, whether based on a movement cap or a cumulative noise quota count system
- Aircraft-specific restrictions apply to certain aircraft types based on international noise certification standards or related noise performance
- Partial restrictions relate to operating restrictions that apply to a specific time of day (e.g. night curfew), predetermined days of the week, nominated flight phase operations (take-off or landing) or RMOs
- Progressive restrictions relate to the implementation of noise mitigation measures such as a reduction in the number of air traffic movements (i.e. movement caps), conditional runway movement limits (i.e. attached to development approvals for new runways) or a reduction in the cumulative noise quota count.
Pillar 4 at Sydney Airport
Operational restrictions apply at Sydney Airport. Such operational restrictions include:
- Sydney Airport Curfew Act 1995– 11pm to 6am curfew (restricts operations to specific types of aircraft or operations and specific runway assignment rules)
– Noise certification of aircraft - Sydney Airport Demand Management Act 1997
– Cap on maximum of 80 planned movements per hour - Protection of regional access to Sydney Airport (“regional ring fence”)
- Long Term Operating Plan (LTOP)
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