View In:   ArcGIS Online Map Viewer

Name: HPMS Median

Display Field: RouteID

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS median event polyline feature class identifies the type of median separating opposing lanes of traffic along divided highways. Medians improve safety and operations by reducing head-on collisions, minimizing interference from opposing traffic, and providing space for recovery, emergency stops, and potential future lanes. This information is collected from roadway design plans, construction as-built documents, and ITD’s roadway inventory systems in accordance with FHWA HPMS Field Manual coding guidance. Each median is classified by physical type and barrier characteristics. Medians may include unprotected areas, curbed separators, or positive barriers that prevent vehicle crossover. Optional sub-codes describe the rigidity of barrier types (flexible, semi-rigid, or rigid) when that level of detail is available. The dataset supports roadway safety evaluation, network inventory, and performance reporting. It is maintained and updated annually as part of ITD’s Highway Performance Monitoring System (HPMS) submission to the Federal Highway Administration (FHWA). These are current "working" records. For the static, published data, please see the records stored at: https://www.fhwa.dot.gov/policyinformation/hpms.cfm

Service Item Id: 93876478b87c4e3d9805288ec6df66d8

Copyright Text: This dataset was developed and provided by the Idaho Transportation Department (ITD). Users should credit ITD as the original source when utilizing or referencing this information in maps, reports, or applications.

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

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:

XMin: 2254295.3529000003
YMin: 1199867.0130000003
XMax: 2743735.2621
YMax: 1980678.9562
Spatial Reference: 102605  (8826)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSLSSolid
Color: [0, 76, 115, 255]
Width: 1
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: true
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: Object ID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• EventID ( type: esriFieldTypeString, alias: Event ID, editable: true, nullable: true, length: 38, defaultValue: null, modelName: EventID )
• RouteID ( type: esriFieldTypeString, alias: Route ID, editable: true, nullable: true, length: 12, defaultValue: null, modelName: RouteID )
• FromDate ( type: esriFieldTypeDate, alias: From Date, editable: true, nullable: true, length: 8, defaultValue: null, modelName: FromDate )
• ToDate ( type: esriFieldTypeDate, alias: To Date, editable: true, nullable: true, length: 8, defaultValue: null, modelName: ToDate )
• FromMeasure ( type: esriFieldTypeDouble, alias: From Measure, editable: true, nullable: true, defaultValue: null, modelName: FromMeasure )
• ToMeasure ( type: esriFieldTypeDouble, alias: To Measure, editable: true, nullable: true, defaultValue: null, modelName: ToMeasure )
• EstablishedDate ( type: esriFieldTypeDate, alias: Effective Date, editable: true, nullable: true, length: 8, defaultValue: null, modelName: EstablishedDate )
• SystemModifyDate ( type: esriFieldTypeDate, alias: System Modify Date, editable: true, nullable: true, length: 8, defaultValue: null, modelName: SystemModifyDate )
• LocError ( type: esriFieldTypeString, alias: Location Error, editable: true, nullable: true, length: 100, defaultValue: null, modelName: LocError )
• MedianType ( type: esriFieldTypeSmallInteger, alias: Median Type, editable: true, nullable: true, defaultValue: null, modelName: MedianType , Coded Values: [1: None] , [2: Unprotected] , [3: Curbed] , ...4 more... )
• MedianWidth ( type: esriFieldTypeSmallInteger, alias: Median Width, editable: true, nullable: true, defaultValue: null, modelName: MedianWidth )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, editable: false, nullable: false, length: 38, defaultValue: null, modelName: GlobalID )
• MedianTypeSource ( type: esriFieldTypeSmallInteger, alias: Median Type Source, editable: true, nullable: true, defaultValue: null, modelName: MedianTypeSource , Coded Values: [0: Unknown] , [1: Windshield Survey] , [2: Manually Derived From Imagery] , ...4 more... )
• RouteSystemCode ( type: esriFieldTypeString, alias: Route System Code, editable: true, nullable: true, length: 2, defaultValue: null, modelName: RouteSystemCode )
• RouteSystemNumber ( type: esriFieldTypeSmallInteger, alias: Route System Number, editable: true, nullable: true, defaultValue: null, modelName: RouteSystemNumber )
• Shape__Length ( type: esriFieldTypeDouble, alias: Shape.STLength(), editable: false, nullable: true, defaultValue: null, modelName: Shape.STLength(), required: true )

Templates:

• Name: HPMS Median
  Description:
  Prototype:
  RouteSystemNumber: null
  RouteSystemCode: null
  EventID: null
  RouteID: null
  FromDate: null
  ToDate: null
  FromMeasure: null
  ToMeasure: null
  EstablishedDate: null
  SystemModifyDate: null
  LocError: null
  MedianType: null
  MedianWidth: null
  MedianTypeSource: null
  
  Drawing Tool: esriFeatureEditToolLine

Capabilities: Query,Sync

Sync Can Return Changes: true

Is Data Versioned: true

Supports Rollback On Failure: false

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

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