GIS Data Catalog
Noise Contours (One Decibel) for King County International Airport
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Summary
King County International Airport (KCIA) noise contours were generated with FAA Integrated Noise Model (INM) Version 6.
The existing noise environment for KCIA was analyzed based upon 1999 operational conditions.
The data was derived from various sources.
This includes aircraft tower counts, Aircraft Situational Display data, ARTS flgiht track data, Boeing commercial aircraft operations, commercial flight schedules, field observations, and a review of the results of the noise measurement survey.
A variety of operational data is necessary in order to determine the noise environment of the airport.
This data includes the following summary information: Aircraft Activity Levels, Fleet Mix, Seasonal Variation in Operations, Time of Day, Runway Use, Flight Path Utilization, and Run-up Activity.
These noise contours were developed for cumulative noise levels in terms of DNL (Day Night Level).
The aircraft single event noise level data are combined with aircraft operational data to develop cumulative noise exposure levels over the full 24-hours.
This combination of data generates the DNL noise level value
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.
Layer information
| Layer Name | noise_contours_1db_area |
| Subject Category | Environment |
| Title | Noise Contours (One Decibel) for King County International Airport |
| Feature Count | 16 |
| Feature Type | Polygon |
| Next Update | As needed |
| Spatial reference | EPSG:2926 |
| Control ID | 821 |
| Place Keywords | Washington State, King County, WA, Pacific NW |
| Theme Keywords | Noise, Airport, Noise Contours, Environmental, Enviro, Environment |
| Supplemental Information |
None |
Table Preview
Attribute information
|
SHAPE
From ESRI |
Description
Feature Geometry DomainCoordinates defining the features |
|
OBJECTID
From ESRI |
Description
Object Identifier DomainSystem-defined record identifier |
|
DNL
From King County |
Description
Day Night Level DomainInteger value of decibel level |
|
Shape.STArea()
From SQL Server |
Description
Returns the area of a geometry instance in square units, based on the spatial reference identifier (SRID) of the geometry. DomainDouble |
|
Shape.STLength()
From SQL Server |
Description
Returns the total length of the elements in a geometry instance. DomainDouble |
Contact information
| Maintained by | King County International Airport |
| Primary |
Vanessa Chin
vanessa.chin@kingcounty.gov |
Terms of Use
| License | Terms of use and copyright |
Use this Data
|
Links
How to use in ArcGIS Pro |
|
| Sharing Status | Public |
Summary
King County International Airport (KCIA) noise contours were generated with FAA Integrated Noise Model (INM) Version 6.
The existing noise environment for KCIA was analyzed based upon 1999 operational conditions.
The data was derived from various sources.
This includes aircraft tower counts, Aircraft Situational Display data, ARTS flgiht track data, Boeing commercial aircraft operations, commercial flight schedules, field observations, and a review of the results of the noise measurement survey.
A variety of operational data is necessary in order to determine the noise environment of the airport.
This data includes the following summary information: Aircraft Activity Levels, Fleet Mix, Seasonal Variation in Operations, Time of Day, Runway Use, Flight Path Utilization, and Run-up Activity.
These noise contours were developed for cumulative noise levels in terms of DNL (Day Night Level).
The aircraft single event noise level data are combined with aircraft operational data to develop cumulative noise exposure levels over the full 24-hours.
This combination of data generates the DNL noise level value
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.
Contact information
| Maintained by | King County International Airport |
| Primary |
Vanessa Chin
vanessa.chin@kingcounty.gov |
Terms of use and copyright
| License | Terms of use and copyright |