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Layer: Traffic Signals (ID: 1)

View In:   ArcGIS Online Map Viewer

Name: Traffic Signals

Display Field: CW_ASSETID

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: This dataset represents the locations and attributes of Department of Public Works (DPW) traffic signals maintained by the Operational Services Division within Los Angeles County jurisdiction. Traffic signals control the movement of vehicles and pedestrians at intersections to enhance safety, manage congestion, and improve overall traffic flow efficiency. This layer was developed to support asset management, field operations, and integration with DPW’s Asset Management System (Trimble Unity Maintain).Field Definitions / Attribute Overview:This dataset contains key attribute fields describing each Traffic Signal asset. Notable/Unique fields include:SIG_TYPE: Identifies the type of traffic signal, such as traffic signal, flasher, rectangle rapid flasher beacon, or driver feedback sign.STATUS: Indicates the current status of the signal.CW_ASSETID: Unique identifier used within the Trimble Unity asset-management system.LOCATION: Describes the intersection where the signal is placed.MAINDIST: Specifies which traffic signal maintenance district the signal is located at.BBS: Battery Backup System, indicates the type of battery backup system unit installed at the signal.TSCABTYP: Identifies the type of traffic signal control cabinet installed at the location.JURISCD1: Describes ownership of the signalJURPER1: Describes percent ownership of the signal.Last Updated 2026

Copyright Text: Contact #1 Name: Haig Minasian Organization: Los Angeles County Public Works, Operational Services Division Position: Senior GIS Analyst Role: Point of Contact Email: hminasian@dpw.lacounty.gov Address: 900 s Fremont Ave City: Alhambra State: CA Postal Code: 91803 Phone: (626) 458-7104 Contact #2 Name: Keith Shimizu Organization: Los Angeles County Public Works, Operational Services Division Position: Principal Electrical Engineering Assistant Role: Point of Contact Email: kshimizu@dpw.lacounty.gov Address: 900 s Fremont Ave City: Alhambra State: CA Postal Code: 91803 Phone: (626) 458-1700

Default Visibility: false

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 50000.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:
Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: SIG_TYPE

Fields: Types:
Capabilities: Query,Sync,ChangeTracking

Sync Can Return Changes: true

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: true

Edit Fields Info:
Supports Query With Historic Moment: true

Supports Coordinates Quantization: true

Supported Operations:   Query   Query Attachments   Query Analytic   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata