https://corporate.aucklandairpor ... d-by-aircraft-noise
飞机航线噪音的问题,有三种,The three areas are known as the High Aircraft Noise Area (HANA), the Moderate Aircraft Noise Area (MANA) and the Aircraft Noise Notification Area (ANNA). Land within the HANA and MANA is subject to special controls, to manage the impacts of aircraft noise.