Airport Noise Basics - PowerPoint PPT Presentation

Airport noise basics l.jpg
1 / 12

  • Updated On :
  • Presentation posted in: General

Airport Noise Basics. Noise Analysis Overview. 2010 Hershey Conference. Chris Osburn, Env. Protection Specialist, WAS-ADO. March 3, 2010. Noise Quality issues. Why is noise important Brief overview of required noise analysis Common needs/supplemental needs What we are seeing

Related searches for Airport Noise Basics

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

Download Presentation

Airport Noise Basics

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

Airport noise basics l.jpg

Airport Noise Basics

Noise Analysis Overview

2010 Hershey Conference

Chris Osburn, Env. Protection Specialist, WAS-ADO

March 3, 2010

Noise quality issues l.jpg

Noise Quality issues

  • Why is noise important

  • Brief overview of required noise analysis

  • Common needs/supplemental needs

  • What we are seeing

  • What we would like to see

  • Additional resources

  • What is new in noise

  • NextGen trends

    Note: This presentation relates to simple NEPA projects, such as Short Form EAs and EAs. Not those requiring significant Impact Analysis or NCP development

Why is noise so important l.jpg

Why is noise so important

  • It’s the law – Federal, State, and/or Local

  • Manage community expectations on noise issues

  • Noise has the potential to influence multiple additional areas of NEPA analysis

Brief overview of required noise analyses l.jpg

Brief overview of required noise analyses

  • Remember what FAA Order 1050.1E says….(Paragraphs 14.6a and 14.6b), regarding triggering aircraft types and activity levels for analysis

    • But don’t forget the highly controversial caveat

  • Threshold of significance is an estimated noise increase of 1.5 dB at or above the DNL 65 dB

    • An increase from DNL 63.5 dB to DNL 65 dB is a significant impact

    • A 3.0 dB increase within the DNL 60 dB, is not necessarily a significant impact

Common noise needs l.jpg

Common noise needs

  • In most cases an analysis using either the FAA Area Equivalent Method (AEM)* and/or Integrated Noise Model (INM), expressed in DNL, is all that is needed

  • A rationale no-build and/or alternative comparison cases, with same forecast of operations modeled for all cases

Note: AEM should not be used to illustrate a shrinking noise environment

Source: DCA RSA EA – Ricondo and Associates, 2010

Supplemental metrics use l.jpg

Supplemental metrics use

  • Supplemental Metrics can play a role in supporting the analysis, but are largely unnecessary for the majority of noise analysis

    • Maximum A-weighted Sound Levels - (Lmax)

    • Sound Exposure Level - (SEL)

    • Equivalent Sound Level - (Leq)

    • Time Above a Specified Sound Level - (TA)

    • Sound Pressure Level - (SPL)

  • Remember the FAA selects the appropriate supplemental analysis when necessary, therefore prior to utilizing supplemental metrics in any noise analysis FAA approval is required

What we are seeing in recent documents l.jpg

What we are seeing in recent documents

  • When to model noise and when noise analysis is not required

  • AEM, used to screen decreases in noise impacts where the forecast is falling

  • Inconsistent use of appropriate noise metrics

  • Inconsistent levels of analysis by consultants

  • Development of a practical comparison contour

What the faa would like to see l.jpg

What the FAA would like to see

  • Simple and consistent analysis in the use of GIS and depiction of land use data in accordance with FHA Standard Land Use Coding Manual

  • Avoid saying to much or too little so as to prevent confusion of the audience, “Keep it Clear”

  • Follow Chapter 17 “Noise” in the Airports Desk Reference

  • Work with the FAA to determine additional analytical needs

  • Coordination with ATC for towered facilities on flight procedures and usage

  • Beware of apples and oranges comparisons when describing noise

Additional resources to consider l.jpg

Additional resources to consider

  • FAA Order 1050.1E – Appendix A – Section 14

  • FAA Airports Desk Reference

  • FICON/FICAN Federal Agency Review of Selected Airport Noise Issues, 1992

  • FAA-AEE Website

  • TRB-ACRP Reports 15 and 16


  • Your ADO

Hint… Hint…

What is new in the world of noise l.jpg

What is new in the World of Noise

  • INM 7.0b release – October 2009

    • Aircraft type and performance database changes

    • Corrections from 7.0a

  • FAA AC 150/5020 Update – 2010

    • Additional guidance on supplemental metrics use

    • Revised mitigation boundary guidance

Nextgen trends on noise l.jpg

NextGen Trends on Noise

Publications are available via the FAA NextGen Integration Office, JPDO, FAA-AEE, and DOT-VOLPE, TRB-ACRP, PARTNER-COE, and NEXTOR

Popular Topics include:

  • Potential changes beyond the 65 DNL?

  • New Analysis Tools – AEDT

  • RNAV/RNP – OPD/CDA Procedures

  • NASA N+2 / FAA CLEEN Aircraft Technologies

Source: FAA-AEE

It is all about l.jpg

It is all about…….

Google Images –

….or it could cost you time and money!

  • Login