Montreal Saint-Hubert Airport will not be any noisier when the new terminal opens than it is today

22 December 2023

The objective of the acoustic evaluation report was to establish the current portrait of the airport’s sound climate and compare it to the projected situation when the terminal opens in July 2025. To do this, a very high level of precision was used, in particular with the modeling of all the flights listed by NavCanada in 2022 on which was superimposed the modeling of all the flights projected in 2025. The projection includes the current activity of the airport with the addition of Porter Airlines flights, but subtracting Chapter 2 aircraft which will be prohibited at night, as well as a 25% reduction in flight school movements which is the result of new training methods currently being implemented.

The current and projected noise impact is demonstrated by the Ldn curves below which measure the average and weighted noise impact based on the five loudest days of the year. 

“The modeling results show a reduction in the surface area included in the iso-contour curves. This reduction is, among other things, attributable to the end of the activities of older generation aircraft, which are known to be noisier. The reduction in the Ldn 60 dBA curve is around 20%, a significant drop. » Source: report conclusion, page 6.1.

Below, in dark green, the current sound measurement. Then, in pale green, the reduced sound measurement of 2025.

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