A Noise Abatement Procedure (NAP) is a procedure designed to reduce the impact of aircraft noise on the community.

Airservices Australia has the following published NAPs at Brisbane airport:

1. Preferred Runway Operations
2. Runway 19 Left and Right Jet Departures
3. Intersection Departures
4. Preferred Flight Paths (arrivals/departures) Part 1 Part 2
5. Landing – Use of Reverse Thrust
6. Training Flights

Reporting is available for:

1. Preferred Runway Operations Report
2. SODPROPS usage Report
3. Preferred Flight Paths (arrivals) Report
4. Preferred Flight Paths (departures) Report

It is important to note that NAPs are not mandatory; ATC and pilots apply the NAPs whenever possible. The published NAPs at Brisbane airport state that ATC will maximise the use of preferred flight paths and over-water operations. Pilots and ATC will determine when critical operational requirements override the use of NAPs.

The below overview provides monthly movement numbers, runway end usage, and the types of aircraft operating at Brisbane airport.

SODPROPS mode is prioritised for use where weather and traffic conditions allow.

The following conditions must be met:

• Dry runway
• Less than 5 knot tailwind
• Cloud base not below 2,500 ft (762 metres)
• 8 km visibility
• Low traffic levels

SODPROPS mode is most likely to be used during the following hours:

• 9pm to 6am six days a week
• 6am to 8am Saturday and Sunday mornings
• 12noon Saturday to 4pm Sunday

Select to view the Monthly, Daily, or Hourly SODPROPS usage reports below.

Airservices is currently working with operational staff to provide more detailed justifications for aircraft operations during periods of suitable criteria.

This NAP lists the preferred runway operating modes during the daytime period (6am-10pm local) and night-time period (10pm-6am local):

During the daytime period (6am-10pm local):

Priority 1: Arriving and departing – Runways 19L/R (arriving over the waters of Moreton Bay and departing over Greater Brisbane)

Priority 2: Arriving and departing – Runways 01L/R (arriving over the Greater Brisbane and departing over the waters of Moreton Bay)

During the night-time period (10pm-6am local):

Priority 1: Arriving Runway 19R and departing Runway 01R (Simultaneous Opposite Direction Parallel Runway Operations, SODPROPS) (arriving and departing over the waters of Moreton Bay)

Priority 2: Arriving Runway 19L/R and departing Runway 01R (Reciprocal Runway Operations, RRO) (arriving and departing over the waters of Moreton Bay)

Priority 3: Arriving Runways 19L/R and departing Runway 19L (arriving on both runways over the waters of Moreton Bay and departing via the legacy runway over land)

Priority 4: Arriving Runway 01R and departing Runways 01L/R (arriving via the legacy runway over land and departing off both runways over the waters of Moreton Bay)

During night-time hours (10pm-6am local) operations over land via the new runway (19R departures/01L arrivals) are only permitted in emergency, loss of infrastructure, or extreme weather conditions. Any operations outside of these conditions require BAC approval.

The below report provides the percentage of each operating mode during daytime and night-time periods for each month. Click here to access the SODPROPs usage report.

The report is best viewed in full screen mode. For instructions on how to use this tool, select the Help button.

This NAP lists the preferred arrival flight paths to be used by different aircraft at different times throughout the day.

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The below report provides percentage adherence to the arrival flight path conditions of the NAP.

The report is best viewed in full screen mode. For instructions on how to use this tool, select the Help button.

This NAP lists the preferred departure flight paths to be used by different aircraft throughout the day.

Aircraft generally depart under Instrument Flight Rules (IFR) at Brisbane Airport via either a Procedural Standard Instrument Departure (SID) or a Radar SID:

• A procedural SID is a published route aircraft use to safely travel through the busy airspace surrounding airports. Aircraft follow this route from departure to where they transition to the enroute (high-level airspace) phase of their flight. Procedural SIDs act like a road, providing an established path for aircraft to track along. They make separation from other aircraft easier and air traffic control more predictable.
• A radar SID is a type of departure where Air Traffic Control (ATC) instructs the pilot to travel towards an assigned compass heading (i.e. a direction) once they reach a nominated height. The compass heading depends on the direction of travel but is also used to safely separate aircraft in the same vicinity. The use of Radar SIDs means aircraft are directed individually by ATC over a wide area. This means more residences may be overflown and with less predictability than if procedural SIDs were in use.

It is important to note that jet aircraft may be cleared via a radar SID when required for weather, traffic management, or when a pilot cannot accept a procedural SID. When this occurs, aircraft will be directed as closely as possible to comply with the applicable day or night operations NAP.

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The below report provides the percentage adherence to the departure flight path conditions of the NAP.