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Noise Contours (One Decibel) for King County International Airport / noise contours 1db area [Washington (State)--King County]

King County Dept. of Transportation, International Airport · 2018 Full Details

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Full Details

Title
Noise Contours (One Decibel) for King County International Airport / noise contours 1db area [Washington (State)--King County]
Description
Noise contours are based on noise and contour modeling. Contour modeling is a very key element of the FAA FAR Part 150 Study. It is imperative that these contours be accurate for the meaningful analysis of airport and roadway noise impacts. The noise contours can then be used to predict the changes to the noise environment as a result of any of the development alternatives under consideration. The FAA Integrated Noise Model (INM) Version 6 was used to model the flight operations contours at King County International Airport (KCIA). INM Version 6 was released for use in October 1999. One of the most important factors in generating accurate noise contours is the collection of accurate operational data. The INM programs require the input of the physical and operational characteristics of the airport. Physical characteristics include runway coordinates, airport altitude, and temperature and optionally, topographical data. Operational characteristics include various types of aircraft data. This includes not only the aircraft types and flight tracks, but also departure procedures, arrival procedures and stage lengths that are specific to the operations at the airport. Aircraft data needed to generate noise contours include: number of aircraft operations by type, types of aircraft, day/evening/night time distribution by type, flight tracks, flight track utilization by type, flight profiles, typical operational procedures, and average meteorological conditions.
Creator
King County Dept. of Transportation, International Airport
Temporal Coverage
Last Modified: 2018-12-01
Date Issued
2017-12-20
Rights
King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.
Access Rights
Public
Format
ArcGIS DynamicMapLayer
Language
English
Date Added
August 10, 2025
Provenance Statement
The metadata for this resource was last retrieved from King County GIS Open Data on 2025-08-24.

Links

Cite and Reference

  • Citation
    King County Dept. of Transportation, International Airport (2017). Noise Contours (One Decibel) for King County International Airport / noise contours 1db area [Washington (State)--King County]. . https://gis-kingcounty.opendata.arcgis.com/datasets/kingcounty::noise-contours-one-decibel-for-king-county-international-airport-noise-contours-1db-area (web service)
  • BTAA Geoportal Link

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