Transport Canada is certainly aware of and understands the citizens' concerns about the impact of air traffic noise. Pierre Elliot Trudeau International Airport is one of the busiest in the country. Further, it is located in the city.
Transport Canada is actively engaged in this file, for the Montreal area in particular. It serves as a technical expert on the Soundscape Consultative Committee, which was created by Montreal's airports. This committee includes the mayors of a number Montreal boroughs, officials from NAV CANADA, which is responsible for the air space, as well as air carriers, and Quebec government officials. This committee helps advance multiple noise mitigation measures in order to minimize the potential impact of air activity on neighbouring communities. The City of Laval is not far removed from all those activities.
It should also be noted that flights by jets weighing more than 45,000 kilograms that land and depart from Pierre Elliott Trudeau International Airport are subject to an overnight restriction, specifically a curfew between midnight and 7 a.m. Flights by aircraft larger than that are authorized on occasion, for medical emergencies in particular, or as a result of weather delays or delays beyond our control owing to air traffic. In other words, you have to recognize that when the curfew is broken, it is often for good reason.