Name: IDOT Safety Tiers Segments - Chicago Metropolitan Area

Display Field: PeerGroupName

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: The Illinois Department of Transportation (IDOT) conducted a safety tier analysis for the local system in 2017, and assigned the safety road index (SRI) for roadway segments and intersections. The local system safety tier analysis focuses on segments under the jurisdiction of county, township, municipality, or private sector, and the intersected points between them. The safety tier categorizes roadway segments and intersections into different SRIs based on their potential for safety improvements, providing a rating for relative comparison. The safety tier analysis results can help local agencies incorporate safety into their transportation management process and be used to identify locations for safety improvements.

Copyright Text: IDOT

Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -9876661.6585
YMin: 5042278.2611
XMax: -9743184.2033
YMax: 5235585.7309
Spatial Reference: 102100 (3857)

Drawing Info:

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HasZ: false

HasM: true

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field: SafetyTier

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• INV (type: esriFieldTypeString, alias: INV, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• BegSta (type: esriFieldTypeDouble, alias: BegSta, SQL Type: sqlTypeOther, nullable: true, editable: true)
• EndSta (type: esriFieldTypeDouble, alias: EndSta, SQL Type: sqlTypeOther, nullable: true, editable: true)
• INVBegStaEndSta (type: esriFieldTypeString, alias: INVBegStaEndSta, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• Length (type: esriFieldTypeDouble, alias: Length, SQL Type: sqlTypeOther, nullable: true, editable: true)
• AnnualVMT (type: esriFieldTypeString, alias: AnnualVMT, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• PeerGroup (type: esriFieldTypeInteger, alias: PeerGroup, SQL Type: sqlTypeOther, nullable: true, editable: true)
• PeerGroupName (type: esriFieldTypeString, alias: PeerGroupName, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• CountyNumber (type: esriFieldTypeInteger, alias: CountyNumber, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CountyName (type: esriFieldTypeString, alias: CountyName, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• MUNI_NAME (type: esriFieldTypeString, alias: MUNI_NAME, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• District (type: esriFieldTypeInteger, alias: District, SQL Type: sqlTypeOther, nullable: true, editable: true)
• RoadName (type: esriFieldTypeString, alias: RoadName, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• SafetyTier (type: esriFieldTypeString, alias: SafetyTier, SQL Type: sqlTypeOther, length: 2147483647, nullable: true, editable: true)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

ID: Critical
Name: Critical
Domains:

Templates:

Name: Critical
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• SafetyTier: Critical

---

ID: High
Name: High
Domains:

Templates:

Name: High
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• SafetyTier: High

---

ID: Medium
Name: Medium
Domains:

Templates:

Name: Medium
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• SafetyTier: Medium

---

ID: Low
Name: Low
Domains:

Templates:

Name: Low
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• SafetyTier: Low

---

ID: Minimal
Name: Minimal
Domains:

Templates:

Name: Minimal
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• SafetyTier: Minimal

---

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/9/2024 7:33:49 PM

Schema Last Edit Date: 2/9/2024 7:33:49 PM

Data Last Edit Date: 2/9/2024 7:33:49 PM

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