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Layer: Classified Building Density (within stand) (ID:5)

View In:   Map Viewer

Name: Classified Building Density (within stand)

Display Field: OID_COPY

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <p>Building density is derived from finding the number of structures (and their density) for each fine scale vegetation map polygon. The source of the structure locations is the Marin Countywide impervious surfaces map.&nbsp;</p> <p>Building footprints were&nbsp;mapped with Object Based Image&nbsp;Analysis methods, using 6-inch, 4-band high-resolution aerial imagery&nbsp;collected in June 2018. The 2018&nbsp;building footprints are treated as a&nbsp;proxy for buildings or structures, and&nbsp;used to calculate building density.</p> <p>Limitations of this data include&nbsp;possible errors of omission, inclusion&nbsp;of non-building features&nbsp;(commission), absence of information&nbsp;on building use, occupancy status, or&nbsp;structural composition. However, this dataset represents the best available spatial layer&nbsp;depicting structures in Marin County.&nbsp;</p> <p>To calculate building density for each polygon in the 2018 Fine Scale Vegetation Map, analysts&nbsp;calculated the number of structures (2018 building footprints) per acre within each polygon. One of six classes for classified structures per acre were then assigned&nbsp;to each polygon in the 2018 Fine Scale Vegetation Map&nbsp;ranging from 0 - .1 structures per acre to &gt;=3 structures per acre.&nbsp;</p> <p>See Chapter 8 of the&nbsp;<a href="https://www.onetam.org/sites/default/files/pdfs/marin_regional_forest_health_strategy_2023.pdf">Marin Regional Forest Health Strategy</a>&nbsp;(Page 440 - Calculating Building Density) for more information.</p>

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field: GlobalID

Type ID Field: STRUCTURES_PER_ACRE_DESC

Fields:
Types:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 9/27/2023 8:46:36 PM

Schema Last Edit Date: 9/6/2023 8:45:09 PM

Data Last Edit Date: 12/22/2022 6:25:16 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat