Parent Layer: Infrastructure

Name: Traffic Signals

Display Field: EQNUM

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: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 16807.470820251783

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 6203721.2357813
YMin: 1729108.71040893
XMax: 6664468.47821222
YMax: 2121148.86479811
Spatial Reference: 102645  (2229)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSMSCircle
Color: [0, 0, 0, 255]
Size: 8.0
Angle: 0.0
XOffset: 0
YOffset: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• EQNUM ( type: esriFieldTypeString, alias: EQNUM, length: 25 )
• SIG_TYPE ( type: esriFieldTypeString, alias: SIG_TYPE, length: 20 )
• ID ( type: esriFieldTypeInteger, alias: ID )
• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )
• STATUS ( type: esriFieldTypeString, alias: STATUS, length: 20 , Coded Values: [UNKNOWN: UNKNOWN] , [ACTIVE: ACTIVE] , [ABANDONED: ABANDONED] , ...3 more... )
• MXCREATIONSTATE ( type: esriFieldTypeSmallInteger, alias: MXCREATIONSTATE )
• GLOBALID ( type: esriFieldTypeGlobalID, alias: GLOBALID, length: 38 )
• SD ( type: esriFieldTypeString, alias: Supervisorial District, length: 10 )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata