I live near the new Canora/Mont-Royal shared platform. Why do I can hear train noise while in my home now?

In order to be able to continue work on the REM in the area where the future Canora and Mont-Royal Stations are being built, the stations’ platforms were replaced with a single, shared platform halfway between the old stations, accessible via Canora Road.

Furthermore, the electrical power supply had to be cut off upstream from the temporary Canora/Mont-Royal station, at the intersection of the Mascouche and Deux-Montagnes lines. Because of that, the Mascouche line’s dual-powered locomotives (diesel and electric) now must switch from diesel to electrical mode at the Canora/Mont-Royal temporary station, rather than at the Ahuntsic station, which increases the noise levels in the area.

Other noise you're hearing also relates to railway safety and train operation, such as customer messages broadcast on the speakers, grade crossing alarms, braking at station entry and acceleration at station exit.