Airport Noise DNLS 65 and 68 | ||||||
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| Category | Zoning Code | |||||
| Feature Dataset Name | STAND-ALONE | |||||
| Item Name | airport_noise_dnl_65_68_pdx | |||||
| Database Type | SDE | |||||
| Originator | City of Portland | |||||
| Bureau | Bureau of Planning and Sustainability | |||||
| Publication Date | ||||||
| Abstract | Overlay Zone. There are several contours within the zone. The boundaries of the 65 DNL and 68 DNL noise contours are based on the 1990 Portland International Airport Noise Abatement Plan. The 55 DNL noise contour is based on the 2035 50th Percentile Forecast Noise Exposure Map in the 2010 Portland International Airport Master Plan Update. A set of quarter-section maps, known as the PDX Noise Zone Maps, is available for viewing at the Development Services Center. The maps are the official reference maps for the PDX Noise Zone regulations. The maps show the 55 DNL noise contour and each successively higher noise contour in one DNL increments. https://www.portlandoregon.gov/bps/article/53357 | |||||
| Purpose | Map location of noise DNLs for application of regulations. | |||||
| Supplemental Information | ||||||
| Last Dataset Update | 05/04/2020 15:35 | |||||
| Last Source Update | 05/04/2020 14:05 | |||||
| Maintenance/Update Frequency | Not updated | |||||
| Extent | Clackamas County, Multnomah County, and Washington County, Oregon | |||||
| Data Type | Vector | |||||
| Shape Type | Poly Line | |||||
| Feature Count | 6 | |||||
| Horizontal Position Accuracy | ||||||
| Horizontal Position Accuracy Link | Taxlots | |||||
| Progress | Complete | |||||
| North Bounding Coordinate | 730921.250000013 | |||||
| South Bounding Coordinate | 690308.375000015 | |||||
| East Bounding Coordinate | 7696226.00000002 | |||||
| West Bounding Coordinate | 7622252.50000002 | |||||
| Theme Keyword(s) | dnl, noise, airport | |||||
| Theme Keyword Thesaurus | None | |||||
| Place Keyword(s) | Portland, Multnomah County, Washington County, Clackamas County, Oregon | |||||
| Place Keyword Thesaurus | None | |||||
| Access Constraints | Available for Public Use | |||||
| Use Constraints | These data are distributed under the terms of the City of Portland Data Distribution Policy. Care was taken in the creation of this data but it is provided "as is". The City of Portland cannot accept any responsibility for errors, omissions, or positional accuracy. | |||||
| Source Dataset Type | File Geodatabase | |||||
| Output Geodatabase | DEVELOPMENT.GDB | |||||
| Distribution | Grid: State plane coordinate system 1983(91). Units: International feet Datum: North American Datum of 1983/1991 (HPGN) Liability: The information in this file was derived from digital databases on the City of Portland GIS. Care was taken in the creation of this file. The City cannot accept any responsibility for errors, omissions, or positional accuracy. There are no warranties, expressed or implied. Format: Shapefile or File Geodatabase Feature Class - Data will be provided via City of Portland FTP Site. Online Resource: http://portlandmaps.com/opendata Online Instructions: City of Portland Public/Open Data is distributed via the PortlandMaps Open Data Site - http://portlandmaps.com/opendata. Data not available on the PortlandMaps Open Data site can be requested by contacting the City of Portland CGIS Group - maps@portlandoregon.gov Transfer Size: varies SPCS Zone Identifier: 5076 | |||||
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Attribute Tables & Domains
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| Column Sort | Column Name | Column Alias | Column Type | Column Size | Domain Value(s) | Column Description | 1 | OBJECTID | OBJECTID | Integer | 4 | | | 1 | DNL_CONTOUR | CONTOUR | Numeric | 8 | | | 1 | Disclosure | Noise disclosure required | String | 12 | | | 1 | Easement | Noise easement required | String | 12 | | | 1 | Insulation | Noise Insulation required | String | 12 | | | 1 | Residential_uses | Residential Use | String | 75 | | |