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May 30, 2023 33 likes •234 views

SEA Part 1 5 0 Noise Com patibility Study Part 1 5 0 Presentation Part 1 5 0 Presentation Part 1 5 0 Presentation Public W orkshop 2 Public W orkshop 2 Public W orkshop 2 June 9 , 2 0 1 0 June 9 , 2 0 1 0 June 9 , 2 0 1 0 Seattle Tacom

SLIDE 1

SEA Part 1 5 0 Noise Com patibility Study

Part 1 5 0 Presentation

Public W orkshop 2

June 9 , 2 0 1 0

Part 1 5 0 Presentation Part 1 5 0 Presentation

Public W orkshop 2 Public W orkshop 2

June 9 , 2 0 1 0 June 9 , 2 0 1 0

Seattle Tacom a I nternational Airport

Classroom C Classroom C

Noise Modeling Process Noise Modeling Process

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SEA Part 1 5 0 Noise Com patibility Study

From First W orkshop on 2 / 2 4 / 1 0 From First W orkshop on 2 / 2 4 / 1 0

Public Com m ents:

Participants said they wanted to know the procedures for

developing the noise contour levels and how modeling and “real” noise were used to develop those levels. In addition, they would like to know where exactly are the monitors located, if they can get real-time noise information, and how locations are chosen.

Participants have experienced loss of sleep.
Participants frequently mentioned being disrupted by engine

run-ups and other aircraft ground noise.

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SEA Part 1 5 0 Noise Com patibility Study

Sound Exposure Level Sound Exposure Level

A m easure of single event noise
I ncludes duration and m axim um

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SEA Part 1 5 0 Noise Com patibility Study

Hourly Average and DNL Hourly Average and DNL

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SEA Part 1 5 0 Noise Com patibility Study

Noise Modeling Process Noise Modeling Process

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SEA Part 1 5 0 Noise Com patibility Study

Sources of I nput Data Airport Layout Plan Airport & FAA Radar Data & OAG Radar Data & FAA Radar Data & Port Categories of I nput Data Runway Layout Runway Use Operating Levels Fleet Mix – Aircraft Types Flight Tracks Stage Length Terrain

Data Gathering Data Gathering

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SEA Part 1 5 0 Noise Com patibility Study

Operating Levels Operating Levels

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SEA Part 1 5 0 Noise Com patibility Study

Runw ay Use Runw ay Use – – South Flow South Flow

Jan-Mar 2009 and Oct-Dec 2009

5 % 2 5 %

1 6 R 1 6 C

1 % 2 9 % 1 0 %

1 6 R 1 6 L

1 % 2 1 % 1 0 % 1 0 % 8 %

2 runw ays in use 3 runw ays in use Mar-Oct 2009

Runw ay Use Runw ay Use

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SEA Part 1 5 0 Noise Com patibility Study

1 %

3 4 L 3 4 R

9 % 1 0 % 1 0 % 6 % 6 % 1 % 2 0 %

3 4 L 3 4 C

5 % 1 6 %

2 runw ays in use 3 runw ays in use Jan-Mar 2009 and Oct-Dec 2009 Mar-Oct 2009

Runw ay Use Runw ay Use – – North Flow North Flow

Runw ay Use Runw ay Use

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SEA Part 1 5 0 Noise Com patibility Study

1 0

Includes 6 months of 2-runway use and 6 months of 3-runway use

9 %

1 6 R 1 6 L

1 % 2 0 % 6 % 2 0 % 1 4 % 1 %

3 4 L 3 4 R

4 % 1 3 % 2 % 2 % 1 0 %

South Flow North Flow

Runw ay Use Runw ay Use – – Annual Annual

Runw ay Use Runw ay Use

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SEA Part 1 5 0 Noise Com patibility Study

Operating Levels Operating Levels – – Noise Ranking Noise Ranking

1 1

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SEA Part 1 5 0 Noise Com patibility Study

Flight Tracks Flight Tracks North Flow North Flow

1 2

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SEA Part 1 5 0 Noise Com patibility Study

Stage Length Stage Length

1 3

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SEA Part 1 5 0 Noise Com patibility Study

Terrain Terrain

1 4

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SEA Part 1 5 0 Noise Com patibility Study

1 5

I ntegrated Noise Model ( I NM 7 .0 b) I ntegrated Noise Model ( I NM 7 .0 b)

approved

FAA’s

required

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SEA Part 1 5 0 Noise Com patibility Study

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Output Output

Noise Contours Noise Contours Tabular Reports Tabular Reports Grid Point Analysis Grid Point Analysis

E x a m p l e

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SEA Part 1 5 0 Noise Com patibility Study

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Noise Measurem ents Noise Measurem ents

Port has 25 permanent noise

monitor sites

10-12 additional sites will be

measured on a short term basis

Short term sites based on input

from the public and feasibility of location

Data will be used to verify that

the model is accurately predicting noise

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SEA Part 1 5 0 Noise Com patibility Study

1 8

Noise Measurem ents Noise Measurem ents

Burien NMT 1 3

Sea-Tac Burien White Center

Cedarhurst Elementary 15631 8th Ave S

SLIDE 19

SEA Part 1 5 0 Noise Com patibility Study

1 9

Noise Measurem ents Noise Measurem ents

Des Moines NMT 1 9

Des Moines Normandy Park Sea-Tac Kent

Midway Elementary 22447 24th Avenue S

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SEA Part 1 5 0 Noise Com patibility Study

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Questions Questions

1 . I s there a better w ay to present noise or operations data

r other data you w ant to see?

2 . I f you live under the arrival or departure path, w hat are som e differences you experienced betw een tw o and three runw ay use? 3 . I s there anything about the data collection that you’d like clarification on?