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PLANNING FOR AIRPORT NOISETHE ROAR OF DISCONTENT
Luke Jensen16.781 Airport SystemsNovember 12, 2013
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Outline• Aircraft Noise Metrics• Planning and Reporting Requirements• Case Study 1: Logan Runway 14/32• Case Study 2: Greener Skies over Seattle
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Noise Metrics
Noise is any unwanted sound
• Perceived loudness is ultimate concern• “A-weighted” dB
• Equivalent Noise Level• DNL, CNEL
• Other metrics• Max Level• Time-Above
Graphic: Harris, Miller, Miller, & Hansen
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Converting “Noise” to “Annoyance”• Complicated problem• Highly subjective• Compounding factors• Pitch• Loudness• Sharpness• Tonality• Duration• Time of day
• Regression appropriate?
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Mandatory Reporting Requirements
• National Environment Policy Act (NEPA, 1969)• FAA Airport Environment
Program• Order 1050.1E• Environmental Impact Statement• Environmental Assessment• Mandatory for all expansion
projects
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Optional Reporting
• FAA Airport Environment Program• Part 150: Noise Compatibility
Planning• Required for federal NCP funding• Optional, but lucrative
• Part 161: Noise-related Access Restrictions
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Case Study #1: Logan Airport Runway 14/32• Opened in 2006 • 34-year development timeline
(mostly politics)• Clear-cut symbolism of new
pavementGraphic: HNTB
Graphic: Boston Sunday Globe
Graphic: Michael Philip Manheim/NARA
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Historical Context
All Images: Michael Philip Manheim/NARA
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Justification for Airside Improvement Plan
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Noise Analysis
Process:1. Detailed forecast2. Integrated Noise
Model study to obtain contours
3. Visualization + Census Synthesis
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Case Study #2: Greener Skies over Seattle
• New “Required Navigation Performance” Approaches
• Tailored flight paths
• Reduce emissions, flight time
• Concentrated flight paths
• New frontier of NextGen
• Public relations challenge: is this good or bad for communities?
Graphic: FAA
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New Analysis Methods: CatEx?
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Conclusions• Movement toward multi-stakeholder collaborative
decision making shows strong promise• Political factors most important factor of environmental review
timeline• Noise metrics currently taken as “given”, should likely be
revisited given modern noise research• NextGen implementation timeline constrained by
environmental review process• Further investigation of Categorical Exception to FAA Order
1050.1E needed
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Thank You!
Questions?