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Frequently Asked Questions

Will the REM frequency increase noise in the area?

For the commissioning phase of the project, we intend to maintain current sound levels and will take the necessary steps to keep noise impact to a minimum during the operations.

NouvLR, the consortium in charge of REM construction, is currently taking sound measurements all along the network in order to refine the models. Now that the consortiums for the construction and the rolling stock have been selected, we know which type of vehicle will be used and have a better understanding of how sound will travel in the REM’s right of way. The models being developed will serve to determine the mitigation measures to be put in place.

When assessing the noise impact of the REM, we must bear in mind the following:

  • The REM is a light rail transit system (LRT), which makes REM trains quieter than conventional trains.
  • REM trains will run more frequently but will have much shorter train sets (numbers of cars), meaning that it will take less time for them to pass by the area.
  • REM train cars will have quieter braking systems.
  • Mascouche line trains (which are louder than REM trains) will no longer travel past Mont-Royal station.
  • REM cars will be modern and quieter.
  • Because of the new A40 station, REM cars will travel through the area at a slower speed.

It is important to note that with the REM, a number of sources of railway noise will be reduced, particularly noise resulting from engine propulsion, aeration/cooling fans and the rubbing and squealing of the wheels on the tracks. Other sources of noise will be eliminated entirely, including disc brake rubbing, whistling on arrival at the station, and grade crossing alarms.

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