These apply to aircraft designs and types when they are first approved for operational use, and they have been progressively tightened since the initial ICAO standard was adopted in This was for aircraft designed prior to Sinceany new aircraft designs have been required to meet stricter Chapter 3 or later standards.įrom 1 Januarya more stringent standard Chapter 4 has been applied for new aircraft designs. Sleep disturbance caused by environmental noise can also affect the quality and quantity of sleep, leading to drowsiness and poor performance the following day. However, quality of life will suffer when people are disturbed or annoyed by noise. Noise disturbance can have significant adverse effects on people living close to an airport, including: Doubling the distance between yourself and the source of a noise effectively cuts the intensity of the sound by 6 dBA i.Īnnoyance is the most widespread problem caused by environmental noise.Īnnoyance reflects the way that noise affects daily activities. Noise has historically been the principal environmental issue for aviation. Amendment 13 which becomes applicable on 25 November Insert the following new and replacement pages in.
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