July 3, 2008
Montreal-Trudeau Airport: Decision Concerning the Departure Procedure Incorporating a Left Turn
MONTREAL, QUEBEC--(Marketwire - July 3, 2008) - Following consultation with the Montreal-Pierre Elliott Trudeau International Airport Soundscape Advisory Committee, Aeroports de Montreal (ADM) announces its decision to suspend the departure procedure incorporating a left turn over Highway 13 for night-time takeoffs from Runway 06L. The decision also means that the tests for the introduction of a departure procedure with a right turn above the Lachine rail yards will note take place.
The procedure will be discontinued once relevant administrative formalities have been completed.
The Soundscape Advisory Committee - whose members include four elected officials from the airport's neighbouring communities - based its conclusions on an exhaustive analysis of results obtained since the September 2006 introduction of the new priority-runway system used in conjunction with flight paths with lower noise impact.
"Despite all the efforts to improve performance made by all parties involved, we have observed that the flight path with the left turn now being used does not meet the pre-determined criteria, however we are continuing to examine other noise-abatement measures," said Normand Boivin, Chair of the Soundscape Advisory Committee.
The preferential-runway system was introduced with the aim of reducing the overall impact of night flights. Under this system, use of Runway 06L is prioritized for takeoffs and 06R for landings, wind conditions permitting, or 44% of the time. Aircraft coming in for a landing overfly only the thin strip of land between Lac St-Louis and the airport. For takeoffs, the system also reduces the number of homes overflown because of the lower-noise procedure.
"This system is clearly beneficial for landings, but less so for takeoffs. In fact, it does not significantly meet two criteria: minimum altitude and maximum noise level," Mr. Boivin said, adding that the system does meet the two other criteria - a reduced "noise footprint" and a smaller population under the "noise exposure contour."
Today's decision means a return to the historical preferential- runway system that was in effect before September 2006 and which prioritizes Runways 24 (toward Lac St-Louis) from midnight to 7 a.m. for takeoffs and landings. Runways 24 are used about 56% of the time under the current system and this will increase to about 70% in future (see accompanying maps), as was the case before September 2006. Like other Canadian airports, Montreal-Trudeau operates 24/7. However, takeoffs are restricted from midnight to 7 a.m. and landings from 1 a.m. to 7 a.m.
In addition, the Soundscape Advisory Committee and ADM will continue to work to develop noise-abatement measures for the Montreal community, while taking into account the need to also reduce fuel consumption and greenhouse gas emissions.
About Aeroports de Montreal
ADM is the local airport authority responsible for the management, operation and development of Montreal-Trudeau and Montreal-Mirabel international airports since 1992. The Corporation employs a total of some 600 people at both airports and at head office.
For more information about Aeroports de Montreal and its operations, please visit our website at www.admtl.com.
Maps of the Runways used in southwesterly/westerly and northeasterly/easterly winds are available at the following address: http://media3.marketwire.com/docs/Appendix0703.pdf
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