HomeMy Public PortalAboutMIT Presentation MIT
International Center For
Air Transportation
Procedure Design for Logan Airport
Community Noise Reduction
R. John Hansman
rihans(cDmit.edu
Performance-Based Navigation (PBN )
NEXT +BEN olnnponents. RNAV/RNP
Moving to !performance-Based Navigation
Conventional Routes RNAV RN1P
Todaay's airways connact Arm Nav ption (RNAV) Required Nayigation Performance
ground bused navigation aids routers follow defined) "waypoinls" (RNP) rouTes wiihiin slsedfied
"oonlainmvnl area"
Waypoints
Current Ground
'HAVAIDs
Limited Design Increased Airspace Optimize
Flexibility Efficiency Use cif Airspace
SmirGe_ Federal'Aviation AdmirktrnGon
25
RNAV Track Concentration
e�amn Departures in blue
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wM�:.� Arrivals in green
-. = ■rsans
n , Win
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Post RNAV
s - g vy Logan's
' DNL 65
2014
ci
Pre-RNAV
W,P"�14`
Image Source: Massport Source: ASDE-X
8 days in 2015
26
Impact of PBN Concentration
• Population sensitive to changes at levels well below the 65 DB
"significant" Day-Night Noise Level(DNL)
• Overflight frequency perceived to increase under tracks
— Precise overflight tracks make visual identification easier
• Exposure less attributable to "random" processes
— Track directly related to procedure
• Traditional Metrics not perceived to capture overflight frequency
— At lower DNL levels the number or frequency of events may be more
important than DNL or Lmax
• Concentration raises issues of Equity
— Popular to propose dispersion as a solution
— Dispersion results in more noise impact
• Can PBN capability be used to reduce community noise impact
27
Noise Complaints at BOS :
One Dot per Address
Each dot represents an address that registered at least one complaint during period
Departures Arrivals
00 0&
0 0 °
i
0
o
qggpeg7ppp�,p a
iz
° I Each Marker Represents One Address Each Marker Represents One Address
Complaint Data: August 2015— July 2016
Track Data: ASDE-X from 12 days of operation, 2015-2016 28
Noise Complaints at BOS :
Dots Weighted by Complaint Frequency
Each dot represents an address that registered at least one complaint during period
Marker size corresponds to number of complaints registered by address
Departures Arrivals
l , 0 2600 ComPla M •`2600 COMPINM
O 500 c0mpums _ - SODOOmPIOmts
<1Dc0mPW=
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IQ
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4_
ly
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�-^ I Each Marker Represents One Address Each,Marker Represents One Address
Complaint Data: August 2015— July 2016
Track Data: ASDE-X from 12 days of operation, 2015-2016 29
Potential Uses of PBN for Reducing Noise
• Spatial Management
— Noise preferred arrival and departure routes
• Precise Lateral Trajectories
• Low population density or background shielding
• Critical point avoidance
— Flight track dispersion or concentration
• Vertical Management
— Modified Departure Angles
• Speed or Thrust Scheduling
— Modified Approach Angles
• Continuous Descent Arrival (CDA)
• 2 Segment or Steep Approaches
• Speed/Drag Management
— Low power/low drag approach profiles (DDA)
• Others?
30
Technical Approach
• Collect Data and Evaluate Baseline Conditions
— Pre and Post RNAV
• Identify current procedures which appear to have community noise
benefit
• Determine Technical and Operational Limitations
— Aircraft Performance
— Navigation and Flight Management (FMS)
— Flight Crew Workload
— Safety
— Procedure Design
— Air Traffic Control Workload
• Identify Candidate Procedure Modifications
• Block 1/Block 2
• Model Noise Impact
— Standard and Supplemental Metrics
• Evaluate Implementation Barriers
• Recommend Procedural Modifications to Massport and FAA
• Repeat for Block 2
31
Departures
2015-2016 Noise •
with 12 Days of Departure
CIO C-0
ap ,r•
Ir
0 Each Marker Represents
•/• Iy
r
• - Address
Arrivals
2015-2016 Noise Complaints at BOS
with 12 Days of Arrival Tracks
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Each Marker Represents One Address
33
Project Schedule
Preliminary/Subject to Change
• FAA/ Massport Discussions Winter — Fall 2016
• Announcement Oct 2016
• Consultant Team Organization Fall 2016
• Historical Flight ComparisonWnalysis Dec to Feb 2016
• Block 1 Procedure Opportunity Feb 2017
— lower complexity, benefits with minimal/no negative impacts Review\Input
— DNL and Alternative Metrics (single event above threshold) MPA CAC
Block 1 Recommendations Apr 2017 At Key Milestones
• Block 2 Procedure Opportunity Jun 2017
— More complexity, benefits and potential negative impacts
— DNL and Alternative Metrics (single event above threshold)
• Block 2 Recommendations Fall 2017
• FAA Review Process Ongoing/TBD
• Implementation/Final Report TBD