Part 1 5 0 Presentation Part 1 5 0 Presentation Part 1 5 0 - PowerPoint PPT Presentation

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 a I nternational Airport Classroom C Classroom C Noise Modeling Process Noise Modeling Process 1

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. 2

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 3

SEA Part 1 5 0 Noise Com patibility Study Hourly Average and DNL Hourly Average and DNL 4

SEA Part 1 5 0 Noise Com patibility Study Noise Modeling Process Noise Modeling Process 5

SEA Part 1 5 0 Noise Com patibility Study Data Gathering Data Gathering Sources of Categories of I nput Data I nput Data Airport Layout Plan Runway Layout Airport & FAA Runway Use Radar Data & OAG Operating Levels Radar Data & FAA Fleet Mix – Aircraft Types Radar Data & Port Flight Tracks Stage Length Terrain 6

SEA Part 1 5 0 Noise Com patibility Study Operating Levels Operating Levels 7

SEA Part 1 5 0 Noise Com patibility Study Runw ay Use Runw ay Use 2 runw ays in use 3 runw ays in use South Flow – South Flow 2 5 % 1 0 % 1 0 % 1 0 % 5 % 1 6 R 1 6 C 1 6 L 1 6 R Runw ay Use – Runw ay Use 1 % 1 % 8 % 2 1 % 2 9 % Mar-Oct 2009 Jan-Mar 2009 and Oct-Dec 2009 8

SEA Part 1 5 0 Noise Com patibility Study Runw ay Use Runw ay Use 2 runw ays in use 3 runw ays in use North Flow – North Flow 2 0 % 1 0 % 1 0 % 1 % 1 % Runw ay Use – Runw ay Use 3 4 L 3 4 L 3 4 C 3 4 R 6 % 6 % 5 % 9 % 1 6 % Mar-Oct 2009 Jan-Mar 2009 and Oct-Dec 2009 9

SEA Part 1 5 0 Noise Com patibility Study Runw ay Use Runw ay Use South Flow North Flow 2 0 % Annual – Annual 9 % 1 3 % 6 % 1 % 2 % 1 6 L 1 6 R Runw ay Use – Runw ay Use 3 4 L 3 4 R 1 % 4 % 2 % 1 0 % 1 4 % 2 0 % -Includes 6 months of 2-runway use and 6 months of 3-runway use 1 0

SEA Part 1 5 0 Noise Com patibility Study Operating Levels – – Noise Ranking Noise Ranking Operating Levels 1 1

SEA Part 1 5 0 Noise Com patibility Study Flight Tracks Flight Tracks North Flow North Flow 1 2

SEA Part 1 5 0 Noise Com patibility Study Stage Length Stage Length 1 3

SEA Part 1 5 0 Noise Com patibility Study Terrain Terrain 1 4

SEA Part 1 5 0 Noise Com patibility Study I ntegrated Noise Model ( I NM 7 .0 b) I ntegrated Noise Model ( I NM 7 .0 b) • FAA approved • FAA’s required 1 5

SEA Part 1 5 0 Noise Com patibility Study Output Output Grid Point Analysis Grid Point Analysis Noise Contours Noise Contours e l p m a x E Tabular Reports Tabular Reports 1 6

SEA Part 1 5 0 Noise Com patibility Study 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 1 7

SEA Part 1 5 0 Noise Com patibility Study Noise Measurem ents Noise Measurem ents White Center Burien Sea-Tac Burien NMT 1 3 Cedarhurst Elementary 15631 8th Ave S 1 8

SEA Part 1 5 0 Noise Com patibility Study Noise Measurem ents Noise Measurem ents Sea-Tac Normandy Park Des Moines Kent Des Moines NMT 1 9 Midway Elementary 22447 24th Avenue S 1 9

SEA Part 1 5 0 Noise Com patibility Study Questions Questions 1 . I s there a better w ay to present noise or operations data or 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? 2 0