Layer: HOLC_redliningZones (ID:1)

View In: Map Viewer

Name: HOLC_redliningZones

Display Field: city

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description:

A polygon layer representing the neighborhood designations assigned by the Home Owner's Loan Corporation in the 1930s and 40s. The HOLC deployed examiners across the country to classify neighborhoods by their perceived level of lending risk.

Copyright Text: Layer adapted from data obtained from Robert K. Nelson, LaDale Winling, Richard Marciano, Nathan Connolly, et al., “Mapping Inequality,” American Panorama, ed. Robert K. Nelson and Edward L. Ayers, accessed August 15, 2023, https://dsl.richmond.edu/panorama/redlining/[YOUR VIEW].

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:

{"renderer":{"type":"uniqueValue","field1":"GRADE","uniqueValueInfos":[{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[51,137,255,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.7}},"value":"B - \"Desirable\"","label":"B - \"Desirable\""},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[255,255,0,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.7}},"value":"C - \"Declining\"","label":"C - \"Declining\""},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[255,0,57,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.7}},"value":"D - \"Hazardous\"","label":"D - \"Hazardous\""}],"fieldDelimiter":",","authoringInfo":{"colorRamp":{"type":"multipart","colorRamps":[{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[189,199,252,255],"toColor":[189,199,252,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[183,252,179,255],"toColor":[183,252,179,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[252,206,184,255],"toColor":[252,206,184,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[212,252,252,255],"toColor":[212,252,252,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[252,182,229,255],"toColor":[252,182,229,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[252,248,184,255],"toColor":[252,248,184,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[202,252,216,255],"toColor":[202,252,216,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[215,227,252,255],"toColor":[215,227,252,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[252,212,229,255],"toColor":[252,212,229,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[223,179,252,255],"toColor":[223,179,252,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[252,179,188,255],"toColor":[252,179,188,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[252,243,207,255],"toColor":[252,243,207,255]},{"type":"algorithmic","algorithm":"esriCIELabAlgorithm","fromColor":[233,215,252,255],"toColor":[233,215,252,255]}]}}},"scaleSymbols":true,"transparency":32,"labelingInfo":null}
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:

Type ID Field: GRADE

Fields:

OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
city (type: esriFieldTypeString, alias: City, SQL Type: sqlTypeOther, length: 32, nullable: true, editable: true)
GRADE (type: esriFieldTypeString, alias: HOLC Grade, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

GRADE: B - "Desirable"

GRADE: C - "Declining"

GRADE: D - "Hazardous"

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/15/2023 6:48:51 PM

Schema Last Edit Date: 8/15/2023 6:48:51 PM

Data Last Edit Date: 8/15/2023 6:48:51 PM

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