airspace and system challenges – challenges and … and...airspace and system challenges –...
TRANSCRIPT
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Airspace and System Challenges – Challenges
and Opportunities
Jeff Cochrane Director Navigation and Airspace
NAV CANADA
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Balancing the challenges
• Safety • Flight efficiency • Service provision efficiency • Aviation emissions • Noise exposure
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Windsor – Toronto – Montreal (WTM) Airspace Redesign
CYYZ – Toronto Pearson
431,000 Movements in 2013 Ranked 17th busiest airport
Windsor-Toronto-Montreal Corridor ~3,000 IFR flights per day
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Pre-WTM STAR WTM STAR
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Customer quantified benefits
WestJet Airlines Savings – Feb 2012-Feb 2013
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Noise Modelling
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Windsor – Toronto – Montreal (WTM) Airspace Redesign – we were listening
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Windsor – Toronto – Montreal (WTM) Airspace Redesign
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Windsor – Toronto – Montreal (WTM) Typical decibel readings*
Higher does not always mean quieter • Noise emitted is highly dependant on individual
flight profile (aircraft configuration, flaps, etc.)
Rule of thumb 250 seat twin aisle jet @ 3,000 ft is 68 dBA and @ 4,000 ft is 64 dBA 70-90 seat Regional Jet @ 3,000 ft is 61 dBA and @4,000 ft is 57 dBA
A 3dB change is the minimal that is detectable by the human ear
57.2 dBA = CRJ-200 at 4,500 ft
65.2 dBA = Challenger 300 at 5,000 ft
59.9 dBA = CRJ-200 at 4,200 ft
70.8 dBA = CRJ-900 at 4,500 ft
Sample readings
62.2 dBA = B738 at 4,500 ft
70.0 dBA = DH8A at 3,800 ft
63.5 dBA = B1900 at 4,100 ft
* 259 flights at approx 3800 feet above ground
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Proposed Airspace Change Protocol
• Set expectations • Engage stakeholders and
communities • Transparency in change
management • What is proposed • Why it is needed • What are the impacts • What additional considerations
need to be addressed • Clear and timely communication