impact sound pressure

normalized impact sound pressure level

impact sound pressure level

tolerable noise level [ acceptable background level | acceptable background noise level ]

ambient noise level

raw normalized impact sound pressure level

speech interference level | SIL

impact sound insulation

equivalent continuous noise level | equivalent continuous level | average sound level | Leq

corrected noise level | CNL

(vi) for operating voltages above 240 kV, the levels of noise, ozone concentration, electric field gradient and magnetic field strength expected at the edge of the right-of-way at maximum loading of the international power line, and the measures to be taken to protect people and animals, from electric shock on contacting vehicles or metallic structures,

(4) ‘Marginally compliant aircraft’ means civil aircraft that meet the Chapter 3 certification limits laid down in Volume 1, Part II, Chapter 3 of Annex 16 to the Convention on International Civil Aviation (Chicago Convention) by a cumulative margin of less than 10EPNdB (Effective Perceived Noise in decibels), whereby the cumulative margin is the figure expressed in EPNdB obtained by adding the individual margins (i.e. the differences between the certificated noise level and the maximum permitted noise level) at each of the three reference noise measurement points as defined in Volume 1, Part II, Chapter 4 of Annex 16 to the Chicago Conv ...[+++]ention;

Marginally compliant aircraft" designates a category of aircraft with a noise level that is only slightly lower than the maximum permitted noise levels established by the International Civil Aviation Organisation (ICAO).

The noise level at arrival can be adequately characterised by the certificated noise level at the approach measurement point as defined in the said Annex 16, for the noise level at departure there is a good correlation with the average of the certificated noise level at the sideline and flyover measurement point as defined in the said Annex 16.