Layer: HotSpots (ID:21)

View In: Map Viewer

Name: HotSpots

Display Field: SOURCE_ID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This polygon feature class represents the results of Getis–Ord Gi* hotspot analysis applied to arson rates for Chicago community areas in 2020. The Gi* statistic evaluates each community area in relation to its neighbors to determine whether high or low arson rate values cluster more strongly than expected by random chance.Areas classified as "hotspots" exhibit significantly high arson rates surrounded by other high-rate communities, indicating possible localized fire-related crime risk. Conversely, “cold spots” represent clusters of lower arson rates. Statistical confidence levels (90%, 95%, and 99%) quantify the strength of each cluster.This dataset supports risk assessment, crime prevention prioritization, and further modeling of emergency service coverage for hotspot regions.Temporal Scope: January 1 – December 31, 2020.

Copyright Text: ESRI Spatial Statistics Tools, City of Chicago Crime Data (2020)

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

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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:

Fields:

OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
SOURCE_ID (type: esriFieldTypeInteger, alias: SOURCE_ID, SQL Type: sqlTypeOther, nullable: false, editable: true)
Arson_rate (type: esriFieldTypeSingle, alias: Arson_rate, SQL Type: sqlTypeOther, nullable: true, editable: true)
GiZScore (type: esriFieldTypeDouble, alias: GiZScore, SQL Type: sqlTypeOther, nullable: true, editable: true)
GiPValue (type: esriFieldTypeDouble, alias: GiPValue, SQL Type: sqlTypeOther, nullable: true, editable: true)
NNeighbors (type: esriFieldTypeInteger, alias: NNeighbors, SQL Type: sqlTypeOther, nullable: true, editable: true)
Gi_Bin (type: esriFieldTypeInteger, alias: Gi_Bin, SQL Type: sqlTypeOther, 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)

Templates:

SOURCE_ID: 0

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 1/29/2026 9:55:42 PM

Schema Last Edit Date: 1/29/2026 9:55:42 PM

Data Last Edit Date: 1/29/2026 9:55:42 PM

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