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Value of Supplemental Noise Metrics in Aircraft Noise Analysis

Year 2001 International Airport Noise Symposium
February 28, 2000
San Diego, California

Summary of Symposium 760 kb

Agenda

Speakers	Topic	Presentations
FICAN Moderator	Introduction	presentation 576 kb
David Southgate Airports Operations Department of Transport and Regional Services Australia	Expanding Ways to Describe and Assess Aircraft Noise	Paper or presentation 750 kb
Michael Bahtiarian Mark Myles Hanscom Field Noise Work Group Bedford, MA	Noise Metric Recommendations from the Hanscom Field Work Group	Paper or presentation 338 kb
Vince Mestre, P.E. Mestre Greve & Associates Newport Beach, CA	Use of Sound Exposure Level Contours and Time Above in Airport Noise Analyses	Presentation 650 kb

General Discussion (mpg)

“Have you considered overlaying N70 on flight path movements map?”

“Does it make more sense to stick with DNL and explain that these kinds of metrics are actually component parts of DNL?”

“Can the N70 contour be readily updated in the same way ANEF contours are updated?” “How do you apply supplemental descriptors to a Master Plan Update?”

“Wouldn’t N70 and TA metrics unfairly penalize general aviation aircraft?”

“I am distressed that that we are still supporting any kind of averaging metric.” “There is actually tremendous variability of underlying data..”

“There isn’t one metric, but a suite of noise metrics to address all of the different kinds of issues.

“Getting FAA to be more flexible about using supplemental metrics”

Comments regarding DNL

We have to be careful to equate complaints with annoyance…”

Please contact Mary Ellen Eagan at 781-229-0707 if you have any questions about the symposium, or would like to submit a comment at the next meeting.