Noise Abatement Procedures

Noise Abatement Procedures (NAPs) are guidelines and practices implemented by airports and airlines to minimize noise pollution, particularly in areas near urban airports, by using specific routing, altitude restrictions, and operational guidelines during aircraft operations.

Purpose and Goals

Minimize Noise Impact

NAPs aim to reduce the negative impact of aircraft noise on communities surrounding airports.

Balance Aviation Needs and Community Well-being

They seek to balance the needs of air transportation with the well-being of residents living near flight paths.

Promote Harmonious Coexistence

The goal is to promote harmonious coexistence between aviation and local communities.

Examples of Noise Abatement Procedures

Runway Use

Preferential runway use, where certain runways are used more often to direct aircraft noise away from noise-sensitive areas.

Departure and Arrival Procedures

• Early Climb-Out: Pilots are encouraged to gain altitude quickly after takeoff to reduce noise exposure in residential areas.
• Specific Flight Paths: Aircraft may be routed along specific flight paths to avoid noise-sensitive areas.
• Displaced Thresholds: Using displaced runway thresholds can help to reduce noise by allowing aircraft to land or take off further down the runway, away from noise-sensitive areas.

Altitude Restrictions

Pilots are often encouraged to maintain higher altitudes during certain phases of flight, such as approach and departure, to reduce noise levels.

Engine Run-up Restrictions

High-power engine run-ups may be restricted during certain hours or in specific areas to minimize noise.

Quiet Hours

Some airports have designated quiet hours during which certain types of aircraft operations are restricted.

Implementation and Stakeholders

Airport Authorities

Airports play a key role in developing and implementing NAPs.

Airlines and Aircraft Operators

Airlines and aircraft operators are responsible for complying with NAPs during their operations.

Air Traffic Control

Air traffic controllers play a role in enforcing NAPs and coordinating aircraft operations.

Community Involvement

Airports often engage with local communities to address noise concerns and develop NAPs that are sensitive to the needs of residents.