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  • OS Download Products' Documentation
  • Addressing and Location
    • Addressing and Location Portfolio Information
    • AddressBase Fundamentals
      • Release Notes
        • AddressBase Products May 2025 – Epoch 118
        • AddressBase Islands May 2025 – Epoch 118
        • AddressBase Products March 2025 – Epoch 117
        • AddressBase Islands March 2025 – Epoch 117
        • AddressBase Products February 2025 – Epoch 116
        • AddressBase Islands February 2025 – Epoch 116
        • AddressBase Products December 2024 – Epoch 115
        • AddressBase Islands December 2024 – Epoch 115
        • AddressBase Products November 2024 – Epoch 114
        • AddressBase Islands November 2024 – Epoch 114
        • AddressBase Products September 2024 – Epoch 113
        • AddressBase Islands September 2024 – Epoch 113
        • AddressBase Products August 2024 – Epoch 112
        • AddressBase Islands August 2024 – Epoch 112
        • AddressBase Products June 2024 – Epoch 111
        • AddressBase Islands June 2024 – Epoch 111
        • AddressBase Products May 2024 – Epoch 110
        • AddressBase Islands May 2024 – Epoch 110
        • AddressBase Products April 2024 – Epoch 109
        • AddressBase Islands April 2024 – Epoch 109
      • AddressBase product family
      • Future and past publication dates
      • Unique Property Reference Number (UPRN)
      • Coordinate reference systems
      • Classification scheme
      • Data sources
      • Street names and numbering
      • Currency, completeness and precision
      • Product supply
      • Code lists and enumerations
        • AddressbasePostalCode
        • BLPUStateCode
        • ChangeTypeCode
        • CountryCode
        • Date
        • FileTypeCode
        • LanguageCode
        • LogicalStatusCode
        • OfficialFlagCode
        • PostcodeTypeCode
        • RPCCode
        • StateCode
        • StreetClassificationCode
        • StreetRecordTypeCode
        • StreetStateCode
        • StreetSurfaceCode
        • Time
        • USRNMatchIndicatorCode
      • AddressBase local custodian codes
      • AddressBase Islands local custodian codes
    • AddressBase
      • Release Notes
      • AddressBase Getting Started Guide
        • Prerequisites
        • Data supply
        • Working with CSV data
        • Working with GML data
        • Working with COU data
        • Creating a single-line or multi-line address
        • Searching for addresses
      • AddressBase Technical Specification
        • Data formats
        • Supply and update
        • AddressBase structure
        • Feature types
          • Address
          • AddressBase Supply Set
        • Code list and enumerations
        • CSV to GML mapping
        • Example records
          • CSV
          • GML
      • AddressBase Downloads
      • AddressBase Known Data Issues
    • AddressBase Core
      • Release Notes
        • 20 May 2025
        • 13 May 2025
        • 07 May 2025
        • 29 April 2025
        • 23 April 2025
        • 15 April 2025
        • 08 April 2025
        • 01 April 2025
        • 25 March 2025
        • 18 March 2025
      • AddressBase Core Overview
        • Data capture and sources
        • GeoPlace
        • Unique Property Reference Number (UPRN)
        • Coordinate reference systems
        • Classification
        • Currency, completeness and precision
        • Product supply
      • AddressBase Core Getting Started Guide
        • Downloading a dataset
        • Working with CSV data
        • Working with GPKG data
        • Working with COU data
        • Working with tiled data
      • AddressBase Core Technical Specification
        • Data formats
        • Supply and update
        • Attributes
        • Enumerations
        • Example records
      • AddressBase Core Downloads
      • AddressBase Core Known Data Issues
    • AddressBase Plus
      • Release Notes
      • AddressBase Plus Getting Started Guide
      • AddressBase Plus Technical Specification
        • Data formats
        • Supply and update
        • AddressBase Plus structure
        • Feature types
          • Address
          • AddressBase Supply Set
        • Code lists and enumerations
        • CSV to GML mapping
        • Example records
          • CSV
          • GML
      • AddressBase Plus Downloads
      • AddressBase Plus Known Data Issues
    • AddressBase Plus Islands
      • Release Notes
      • AddressBase Plus Islands Getting Started Guide
      • AddressBase Plus Islands Technical Specification
        • Data formats
        • Supply and update
        • AddressBase Plus Islands structure
        • Feature types
          • Address
          • AddressBase Supply Set
        • Code lists and enumerations
        • CSV to GML mapping
        • Example records
          • CSV
          • GML
      • AddressBase Plus Islands Downloads
      • AddressBase Plus Islands Known Data Issues
    • AddressBase Premium
      • Release Notes
      • AddressBase Premium Getting Started Guide
        • Prerequisites
        • Data supply
        • Working with CSV data
        • Working with GPKG data
        • Working with GML data
        • Working with COU data
        • Creating a single-line or multi-line address
        • Searching for addresses
      • AddressBase Premium Technical Specification
        • Data formats
        • Supply and update
        • AddressBase Premium structure
        • Feature types
          • Street – (Type 11 Record)
          • BLPU – (Type 21 Record)
          • AddressBase supply set
          • Feature with lifecycle
        • Structured data types
          • Street Descriptor – (Type 15 Record)
          • Application Cross Reference – (Type 23 Record)
          • LPI – (Type 24 Record)
          • Delivery Point Address – (Type 28 Record)
          • Successor Cross Reference – (Type 30 Record)
          • Organisation – (Type 31 Record)
          • Classification – (Type 32 Record)
          • Entity with lifecycle
        • Dataset metadata
          • Metadata – (Type 29 Record)
          • Header – (Type 10 Record)
          • Trailer – (Type 99 record)
        • Code lists and enumerations
        • Attribute format comparison
        • Example records
          • CSV
          • GML
      • AddressBase Premium Downloads
      • AddressBase Premium Known Data Issues
    • AddressBase Premium Islands
      • Release Notes
      • AddressBase Premium Islands Getting Started Guide
      • AddressBase Premium Islands Technical Specification
        • Release Notes
          • June 2024
        • Data formats
        • Supply and update
        • AddressBase Premium Islands structure
        • Feature types
          • Street – (Type 11 Record)
          • BLPU – (Type 21 Record)
          • AddressBase supply set
          • Feature with lifecycle
        • Structured data types
          • Street Descriptor – (Type 15 Record)
          • Application Cross Reference – (Type 23 Record)
          • LPI – (Type 24 Record)
          • Delivery Point Address – (Type 28 Record)
          • Successor Cross Reference – (Type 30 Record)
          • Organisation – (Type 31 Record)
          • Classification – (Type 32 Record)
          • Entity with lifecycle
        • Dataset metadata
          • Header – (Type 10 Record)
          • Metadata – (Type 29 Record)
          • Trailer – (Type 99 record)
        • Code lists and enumerations
        • Attribute format comparison
        • Example records
          • CSV
          • GML
      • AddressBase Premium Islands Downloads
      • AddressBase Premium Islands Known Data Issues
    • Boundary-Line
      • Release Notes
        • May 2025
        • October 2024
        • June 2024
      • Boundary-Line Overview
        • Data overview
        • Product supply
      • Boundary-Line Product Information
        • Relationships of administrative areas
        • Structure of Boundary-Line
        • Boundary-Line principles and features
        • Case studies
        • Metadata
        • Glossary
        • Exception areas
        • The coastline and associated items
      • Boundary-Line Technical Specification
        • Shapefile, TAB and GKPG
          • Features - Shapefile, TAB and GPKG
            • Area - GB
            • Area - English region
            • Area - Wales region
            • Link feature type
            • Area - Polling districts England
            • Historical and ceremonial boundaries features
          • Layers - Shapefile, TAB and GKPG
            • Shapefile
            • TAB
            • GKPG
          • Code lists - Shapefile, TAB and GKPG
            • AreaCode
            • TypeCode
        • GML
          • Features - GML
            • AdministrativeUnit
          • Code lists - GML
            • AdministrativeHierarchyValue
            • NationalClassificationValue
          • Example record - GML
        • Vector tiles
      • Guide to Ceremonial County Boundaries
      • Additional Product Details
      • Boundary-Line Downloads
      • Boundary-Line Known Data Issues
    • Code-Point
      • Code-Point Overview
        • Product details
        • Product supply
      • Code-Point Products Comparison
      • Code-Point Getting Started Guide
        • Product supply
        • Data structure
        • CSV file processing
        • Data measures
        • Metadata
        • Glossary
      • Code-Point Technical Specification
        • Product structure
        • Supply formats
      • Code-Point Downloads
      • Code-Point Known Data Issues
    • Code-Point Open
      • Code-Point Open Overview
        • Product details
        • Product supply
      • Code-Point Open Products Comparison
      • Code-Point Open Getting Started Guide
        • Requirements for using the data
        • CSV file processing
        • Data measures
        • Loading the data into a GIS
        • Glossary
      • Code-Point Open Technical Specification
        • Product structure
        • Supply formats overview
      • Code-Point Open Downloads
      • Code-Point Open Known Data Issues
    • Code-Point with Polygons
      • Release Notes
        • January 2025
      • Code-Point with Polygons Overview
        • Product details
        • Product supply
      • Code-Point with Polygons Products Comparison
      • Code-Point with Polygons Getting Started Guide
        • Using the vertical street lookup
        • Creating single-space postcodes
        • Data measures
      • Code-Point with Polygons Technical Specification
        • Data supply
        • Specification
      • Code-Point with Polygons Downloads
      • Code-Point with Polygons Known Data Issues
    • 🆕OS Emergency Services Gazetteer
      • 🆕OS ESG Overview
        • 🆕Product supply
        • 🆕Planned enhancements
      • OS ESG Getting Started Guide
      • OS ESG Technical Specification
        • Feature type
          • BLPU (Type 21 Record)
        • Structured data types
          • LPI (Type 24 Record)
          • Classification (Type 32 Record)
        • 🆕Code lists
          • AddressbasePostalCode
          • BLPUStateCode
          • ChangeTypeCode
          • 🆕ClassificationCode
          • CountryCode
          • FileTypeCode
          • LanguageCode
          • LogicalStatusCode
          • OfficialFlagCode
          • RPCCode
          • USRNMatchIndicatorCode
        • Dataset metadata
          • Header (Type 10 Record)
          • Metadata (Type 29 Record)
          • Trailer (Type 99 Record)
      • 🆕OS ESG FAQs
      • 🆕OS ESG Downloads
      • OS ESG Known Data Issues
    • OS Open Built Up Areas
      • Release notes
        • April 2024
      • OS Open Built Up Areas Overview
        • Product details
        • Product supply
      • OS Open Built Up Areas Technical Specification
        • Feature types
          • Built Up Areas
          • Built Up Extents
          • Non Built Up Extents
        • Structured data types
          • MultiSurfaceWithAreaType
          • NameType
        • Code list
          • LanguageValue
        • Supply formats
      • OS Open Built Up Areas Known Data Issues
    • OS Open Names
      • Release Notes
        • April 2025
        • January 2025
        • October 2024
        • July 2024
      • OS Open Names Overview
        • Product applications
        • Product details
        • Product supply
      • OS Open Names Getting Started Guide
        • Obtaining OS Open Names data
        • CSV file processing
        • Loading the data in a GIS
      • OS Open Names Technical Specification
        • Source of OS Open Names
        • Viewing resolution
        • Product structure
        • Feature type
          • NamedPlace
        • Code lists
          • LanguageValue
          • NamedPlaceTypeValue
          • LocalTypeValue
        • Structured data types
          • GeographicalName
          • Identifier
        • Local Type
        • Supply formats overview
        • Attribute naming format comparison
        • LocalType code list
      • OS Open Names Downloads
      • OS Open Names Known Data Issues
    • Points of Interest
      • Release Notes
        • March 2025
        • December 2024
        • September 2024
        • June 2024
      • Points of Interest Product Information
        • Using Points of Interest
        • Data measures and data sources
        • Classification scheme
        • Points of Interest Provenance
        • Glossary
        • Points of Interest symbology
      • Points of Interest Technical Specification
        • Using Points of Interest
        • Pipe delimited text (PDT) file format
          • Record structure
        • Code lists
          • Positional Accuracy
          • Match Indicator
        • Example records
        • Glossary
      • Points of Interest Classification Scheme
        • Accommodation, eating and drinking
        • Commercial services
        • Attractions
        • Sport and entertainment
        • Education and health
        • Public infrastructure
        • Manufacturing and production
        • Retail
        • Transport
      • Points of Interest Class Count
        • Accommodation, eating and drinking
        • Commercial services
        • Attractions
        • Sport and entertainment
        • Education and health
        • Public infrastructure
        • Manufacturing and production
        • Retail
        • Transport
      • Points of Interest Downloads
      • Points of Interest Known Data Issues
  • Contextual or derived mapping
    • Contextual or Derived Mapping Portfolio Information
    • Colour Raster Map Fundamentals
      • Colour Raster Map Overview
        • Metadata
        • Data compression
        • Data measures
        • Product supply
      • Colour Raster Map Technical Specification
        • Georeferencing
        • Image file directory (TIFF)
        • Abbreviations used on OS 1:25 000 and 1:50 000 scale mapping
        • Product glossary
    • 1:25 000 Scale Colour Raster
      • 1:25 000 Scale Colour Raster Overview
        • Product details
        • Features depicted in the product
        • Georeferencing
      • 1:25 000 Scale Colour Raster Technical Specification
      • 1:25 000 Scale Colour Raster Downloads
      • 1:25 000 Scale Colour Raster Known Data Issues
    • 1:50 000 Scale Colour Raster
      • 1:50 000 Scale Colour Raster Overview
        • Product details
        • Features depicted in the product
        • Georeferencing
      • 1:50 000 Scale Colour Raster Technical Specification
      • 1:50 000 Scale Colour Raster Downloads
      • 1:50 000 Scale Colour Raster Known Data Issues
    • 1:250 000 Scale Colour Raster
      • 1:250 000 Scale Colour Raster Overview
        • Product details
        • Georeferencing
        • Gazetteer
      • 1:250 000 Scale Colour Raster Technical Specification
      • 1:250 000 Scale Colour Raster Downloads
      • 1:250 000 Scale Colour Raster Known Data Issues
    • GB Overview Maps
      • GB Overview Maps Downloads
      • GB Overview Maps Known Data Issues
    • MiniScale
      • MiniScale Product Guide
        • Supply and formats
        • Georeferencing
        • Depiction of roads and towns
        • Data compression
        • Features, layers and styles
      • MiniScale Technical Specification
        • National Grid
        • MiniScale file management
      • MiniScale Downloads
      • Miniscale Known Data Issues
    • OS Open Zoomstack
      • OS Open Zoomstack Getting Started Guide
        • Zoomstack vector tiles
        • Zoomstack GeoPackage format
      • OS Open Zoomstack Technical Specification
        • List of Layers
        • Description of the cartographic styles
        • Sea Extent and Name Languages
        • Vector Tiles Schema
        • GeoPackage Schema
      • OS Open Zoomstack Known Data Issues
    • OS OpenMap – Local
      • Release Notes
        • April 2025
      • OS OpenMap – Local Overview
        • Product applications and uses
        • Product details
        • Product supply
      • OS OpenMap – Local Getting Started Guide
        • Loading raster data
        • Loading vector data
        • Loading and displaying GML Data
        • POSTGIS
        • Loading and displaying Shapefile supply
        • Viewing the data in QGIS
        • Using shapefiles in PostGIS
        • Using MapInfo Professional
      • OS OpenMap – Local Technical Specification
        • Data structure
        • Feature types
          • Building
          • ElectricityTransmissionLine
          • Glasshouse
          • RailwayStation
          • RailwayTrack
          • RailwayTunnel
          • Road
          • RoadTunnel
          • Roundabout
          • MotorwayJunction
          • CarChargingPoint
          • Foreshore
          • SurfaceWater_Area
          • SurfaceWater_Line
          • TidalBoundary
          • TidalWater
          • Woodland
          • FunctionalSite
          • ImportantBuilding
          • NamedPlace
        • Code lists
          • RailwayStationClassification
          • RailwayTrackClassification
          • DrawLevelValue
          • OverrideValue
          • RoadClassification
          • RoundaboutClassification
          • CarChargingType
          • RatedVoltage
          • ChargeMethod
          • TidalBoundaryClassification
          • BuildingTheme
          • BuildingClassification
          • SiteClassification
          • FontHeightClassification
          • NamedPlaceClassification
      • OS OpenMap – Local Downloads
      • OS OpenMap – Local Known Data Issues
    • OS VectorMap District
      • OS VectorMap District Overview
        • Generalisation
        • Feature types
        • Style definition
        • Product supply
      • OS VectorMap District Technical Specification
        • GML Overview
        • Raster Specification
        • Georeferencing
        • Feature types
          • Building
          • ElectricityTransmissionLine
          • Glasshouse
          • RailwayStation
          • RailwayTrack
          • RailwayTunnel
          • MotorwayJunction
          • Road
          • RoadTunnel
          • Roundabout
          • Foreshore
          • SurfaceWater_Area
          • SurfaceWater_Line
          • TidalBoundary
          • TidalWater
          • Ornament
          • Woodland
          • FunctionalSite
          • NamedPlace
          • SpotHeight
          • AdministrativeBoundary
        • Code lists
          • RailwayStationClassification
          • RailwayTrackClassification
          • RoadClassification
          • RoundaboutClassification
          • DrawLevelValue
          • OverrideValue
          • TidalBoundaryClassification
          • FunctionalSiteClassification
          • NamedPlaceClassification
          • FontHeightClassification
          • AdministrativeBoundaryClassification
        • Attributes
        • Feature Codes
        • Styling of Land and Sea
      • Vector Simple Guide
        • Downloading OS OpenData
        • Opening OS OpenData in QGIS
        • Styling vector data
        • Opening and saving maps in Composer
      • Raster Simple Guide
        • Downloading OS OpenData
        • Opening OS OpenData in QGIS
        • Opening and saving a map in composer
      • OS VectorMap District Downloads
      • OS VectorMap District Known Data Issues
    • OS VectorMap Local
      • Release Notes
        • January 2025
      • OS VectorMap Local Overview
        • Product details
        • Features represented in the product
        • Product style definition
        • Product supply
        • National Grid coverage for OS VectorMap Local
      • OS VectorMap Local Technical Specification
        • GeoPackage overview
        • GML overview
        • Raster data
        • Feature types
          • Area
          • Line
          • VectorMapPoint
          • RoadCLine
          • RailCLine
          • Text
        • Code lists
          • DrawLevelValue
          • AnchorPositionValue
          • TextFontValue
        • Structured data types
          • textRenderingType
        • Feature codes and descriptions
        • Vector tiles overview
        • Important Buildings classification
      • OS VectorMap Local Downloads
      • Supporting documents
        • OS VectorMap Local Cartographic Style Definitions
      • OS VectorMap Local Known Data Issues
  • Networks
    • Networks Portfolio Information
    • OS Detailed Path Network
      • OS Detailed Path Network Overview
        • Product details
        • Attribution
        • Product supply
        • Coordinate reference system
      • OS Detailed Path Network Getting Started Guide
        • Downloading the data
        • Loading GML data
      • OS Detailed Path Network Technical Specification
        • OS Detailed Path Network structure
        • Feature types
          • Route
          • RouteLink
          • RouteNode
        • Structured data types
          • VerticalGainType
        • Code lists
          • LevelCodeValue
          • PotentialHazardValue
          • RightOfWayValue
          • RouteDescriptiveGroupValue
          • RouteDescriptiveTermValue
          • RouteLinkDescriptiveTermValue
          • RouteNodeDescriptiveTermValue
          • SurfaceTypeValue
        • Data quality
        • GML overview
        • GeoPackage overview
          • Route
          • RouteLink
          • RouteNode
        • Vector Tiles overview
          • Route
          • RouteLink
        • GML examples
      • OS Detailed Path Network Downloads
      • OS Detailed Path Network Known Data Issues
    • OS MasterMap Highways Network Fundamentals
      • Release Notes
        • May 2025
        • April 2025
        • March 2025
        • February 2025
        • January 2025
        • December 2024
        • November 2024
        • October 2024
        • September 2024
        • August 2024
        • July 2024
        • June 2024
      • OS MasterMap Highways Network Product Family
      • OS MasterMap Highways Network Overview
        • Standards
        • Coordinate reference system
        • Feature types
          • Road Link (present in Roads & RAMI products)
          • Road Node (present in Roads & RAMI products)
          • Path Link (present in Paths product)
          • Path Node (present in Paths product)
          • Connecting Link (present in Paths product)
          • Connecting Node (Present in Paths product)
          • Road (present in Roads & RAMI products)
          • Path (present in Paths product)
          • Street (present in all OS MasterMap Highways Network products)
          • Road Junction (present in Roads & RAMI products)
          • Ferry Link (present in all OS MasterMap Highways Network products)
          • Ferry Node (present in all OS MasterMap Highways Network products)
          • Ferry Terminal (present in all OS MasterMap Highways Network products)
          • Access Restrictions (present in RAMI product)
          • Turn Restrictions (present in RAMI product)
          • Restrictions For Vehicles (present in RAMI product)
          • Hazards (present in RAMI product)
          • Structures (present in RAMI product)
          • Maintenance (present in RAMI & Paths products)
          • Reinstatement (present in RAMI & Paths products)
          • Highways Dedication (present in RAMI & Paths products)
          • Special Designations (present in RAMI & Paths products)
        • Product supply
        • Product packaging
        • File naming
        • Feature validation data set
        • Volume feature count
        • OS Open Roads Lookup Table
      • OS MasterMap Highways Network Getting Started Guide
        • What do I need to use this data?
        • Product supply
        • Coverage
        • Product packaging
        • File naming
        • Unzipping GML, GeoPackage, and vector tiles files
        • Loading OS MasterMap Highways Network products into a GIS
        • Relationships between Highways tables
      • OS MasterMap Highways Network Playbook
        • Connecting to Address Data
        • Identifying Change in the Network
        • Highlighting Roads Under Construction
        • Creating a Map of Winter Gritting Routes
        • Adding Road Names and Numbers to a Map
        • Merging Tables and Dropping Geometry
        • Creating a Routable Network
      • OS MasterMap Highways Network Downloads
      • OS MasterMap Highways Network Known Data Issues
    • OS MasterMap Highways Network – Roads
      • OS MasterMap Highways Network Overview
      • OS MasterMap Highways Network – Roads Technical Specification
        • Specification changes
        • Structure
        • How the product fits together
        • Change-Only Update (COU) supply
        • Feature types
          • RoadLink
          • RoadNode
          • Road
          • Street
          • RoadJunction
          • FerryLink
          • FerryNode
          • FerryTerminal
        • Structured data types
          • identifier
          • OperationalStateType
          • DesignatedNameType
          • ResponsibleAuthority
          • CycleFacilityType
          • ElevationGainType
          • RoadWidthType
        • Code lists and Enumerations
          • ChangeValue
          • RoadClassificationValue
          • RoadFunctionValue
          • MatchStatusValue
          • OperationalStateValue
          • ProvenanceSourceValue
          • RoadStructureValue
          • LinkDirectionValue
          • FormOfWayValue
          • CycleFacilityValue
          • RoadWidthConfidenceLevelValue
          • FormOfRoadNodeValue
          • RoadNodeClassificationValue
          • AccessPointValue
          • StreetTypeValue
          • JunctionTypeValue
          • ConnectionTypeValue
          • FormOfWaterwayNodeValue
        • GML overview
        • GeoPackage overview
          • ferry_link
          • ferry_node
          • ferry_terminal
          • road
          • road_junction
          • road_link
          • road_node
          • street
        • Vector tiles overview
          • ferry_link
          • ferry_node
          • ferry_node
          • road_link
          • road_node
          • street
        • GML examples
      • OS MasterMap Highways Network Getting Started Guide
      • OS MasterMap Highways Network Known Data Issues
    • OS MasterMap Highways Network – Routing and Asset Management Information
      • OS MasterMap Highways Network Overview
      • OS MasterMap Highways Network – Routing and Asset Management Information Technical Specification
        • Specification changes
        • How the product fits together
        • Routing and Asset Management feature information
          • Data types
            • NetworkReference
            • NodeReference
            • LinkReference
            • PointReference
            • Multiple Link Reference
            • Point Reference
        • Common attribution
        • Rights and Restrictions
          • Feature types
            • AccessRestriction
            • HighwayDedication
            • TurnRestriction
            • RestrictionForVehicles
        • Advisory information
          • Feature types
            • Hazard
            • Structure
        • Asset management
          • Feature types
            • Maintenance
            • Reinstatement
            • Special Designation
        • Change-Only Update (COU) supply
        • Code lists and enumerations
          • ChangeValue
          • UseTypeValue
          • VehicleTypeValue
          • LoadTypeValue
          • NamedDateValue
          • NamedDayValue
          • NamedPeriodValue
          • NamedTimeValue
          • AccessRestrictionValue
          • DedicationValue
          • TurnRestrictionValue
          • RestrictionTypeValue
          • HazardTypeValue
          • StructureTypeValue
          • ReinstatementTypeValue
          • SpecialDesignationTypeValue
          • LinkDirectionValue
          • MaintenanceValue
        • Data types
          • TemporalPropertyType
          • DateRangeType
          • DayPropertyType
          • TimePropertyType
          • TimeRangeType
          • TrafficRegulationOrderType
          • VehicleQualifier
          • ResponsibleAuthority
          • Identifier
        • GML overview
        • GeoPackage overview
          • Access Restriction
          • Highway Dedication
          • Turn Restriction
          • Restriction for Vehicles
          • Hazard Point
          • Hazard
          • Structure Point
          • Structure
          • Maintenance
          • Maintenance Point
          • Maintenance Line
          • Maintenance Area
          • Reinstatement
        • GML examples
      • OS MasterMap Highways Network Getting Started Guide
      • OS MasterMap Highways Network Known Data Issues
    • OS MasterMap Highways Network – Paths
      • OS MasterMap Highways Network Overview
      • OS MasterMap Highways Network – Paths Technical Specification
        • Specification changes
        • Structure
        • How does the product fit together?
        • Change-Only Update (COU) Supply
        • Feature types
          • PathLink
          • PathNode
          • ConnectingLink
          • ConnectingNode
          • Path
          • Street
          • FerryLink
          • FerryNode
          • FerryTerminal
          • Maintenance
          • Reinstatement
          • SpecialDesignation
          • HighwayDedication
        • Structured data types
          • Identifier
          • CycleFacilityType
          • ElevationGainType
          • OperationalStateType
          • DesignatedNameType
          • ResponsibleAuthority
          • TemporalPropertyType
          • DateRangeType
          • DayPropertyType
          • TimePropertyType
          • TimeRangeType
        • Data types
          • NetworkReferenceLocation
          • Temporal Properties
        • Code lists and Enumerations
          • ChangeValue
          • FormOfWayValue
          • SurfaceTypeValue
          • MatchStatusValue
          • ProvenanceSourceValue
          • CycleFacilityValue
          • FormOfRoadNodeValue
          • RoadNodeClassificationValue
          • OperationalStateValue
          • StreetTypeValue
          • ConnectionTypeValue
          • FormOfWaterwayNodeValue
          • DedicationValue
          • ReinstatementTypeValue
          • SpecialDesignationTypeValue
          • MaintenanceValue
        • GML Overview
        • GeoPackage overview
          • connecting_link
          • connecting_node
          • ferry_link
          • ferry_node
          • ferry_terminal
          • highway_dedication
          • maintenance
          • path
          • path_link
          • path_node
          • reinstatement
          • special_designation
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  • RoadLink Attributes
  • id
  • identifier
  • inspireId INSPIRE
  • beginLifespanVersion «voidable» «lifeCycleInfo» INSPIRE
  • centrelineGeometry INSPIRE
  • fictitious INSPIRE
  • validFrom «voidable» INSPIRE
  • reasonForChange
  • roadClassification
  • routeHierarchy
  • formOfWay
  • trunkRoad
  • primaryRoute
  • roadClassificationNumber
  • roadName
  • alternateName
  • operationalState
  • provenance
  • directionality
  • length
  • matchStatus
  • alternateIdentifier
  • startGradeSeparation
  • endGradeSeparation
  • roadStructure
  • cycleFacility
  • roadWidth
  • elevationGain
  • formsPartOf
  • startNode INSPIRE
  • endNode INSPIRE
  • relatedRoadArea

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  1. Networks
  2. OS MasterMap Highways Network – Roads
  3. OS MasterMap Highways Network – Roads Technical Specification
  4. Feature types

RoadLink

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Last updated 3 months ago

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A RoadLink is a linear spatial object that defines the geometry and connectivity of a road network between two points in the network. Road links can represent single carriageways, dual carriageways, slip roads, roundabouts and indicative trajectories across traffic squares. RoadLinks will be split for connectivity purposes (for example at junctions) and RoadNodes will connect the RoadLinks together. Each RoadLink will provide a reference to the RoadNodes at the start and end of the RoadLink.

RoadLinks will split where two links cross over or under one another when there is no connectivity, for example at bridges and flyovers. Therefore, the attributes “startGradeSeparation” and “endGradeSeparation” have been populated on the RoadLink. The Grade Separation attribute will indicate where there is or is not a physical connection between the roads in the real world. Grade Separation will determine if a RoadLink is above another; if the two RoadLinks, when referencing the same RoadNode, have different values then it is not possible to move between them at that point.

Where a RoadLink crosses a PathLink at a different level, both the RoadLink and PathLink will split. The attributes “startGradeSeparation” and “endGradeSeparation” will be populated on the RoadLink and PathLink. The Grade Separation attribute will indicate where there is or is not a physical connection between the road and path in the real world. Where the two links cross, the Road Node and Path Node will have the same identifier. Grade Separation will determine if one link is above another. If the two links, when referencing a Road Node and Path Node with the same TOID, have different grade separation values then it is not possible to move between them at that point.

The context diagram shows how the RoadLink has been inherited from INSPIRE and the attribution held on the RoadLink.

RoadLink Attributes

A feature that represents a part or all of a highway.

  • Constraints: If the roadClassification is either Motorway, A Road or B Road then roadClassificationNumber shall not be null.

id

Unique identifier, for RoadLink this is a TOID

  • Attribute name: gml_id (GML), toid (GeoPackage), toid (VectorTiles)

  • Type: CharacterString

  • Size: 20

  • Multiplicity: [1]

identifier

Uniform Resource Identifier

  • Attribute name: identifier (GML), identifier (GeoPackage), Not provided (VectorTiles)

  • Type: CharacterString

  • Size: 37

  • Multiplicity: [1]

inspireId INSPIRE

External object identifier of the spatial object.

  • Attribute name: inspireId

  • Type: Identifier

  • Multiplicity: [0..1]

beginLifespanVersion «voidable» «lifeCycleInfo» INSPIRE

Date and time at which this version of the spatial object was inserted or changed in the spatial data set. Note: The time part is always set to zero.

  • Attribute name: beginLifespanVersion

  • Type: DateTime

  • Multiplicity: [1]

centrelineGeometry INSPIRE

The three-dimensional geometry that represents the alignment of the section of road.

  • Attribute name: centrelineGeometry

  • Type: GM_Curve

  • Multiplicity: [1]

fictitious INSPIRE

Indicator that the centreline geometry of the link is a straight line with no intermediate control points – unless the straight line represents the geography in the resolution of the data set appropriately.

  • Attribute name: fictitious

  • Type: Boolean

  • Size: 5

  • Multiplicity: [1]

validFrom «voidable» INSPIRE

The time when the transport link started to exist in the real world. Note: The time part is always set to zero.

  • Attribute name: validFrom

  • Type: DateTime

  • Multiplicity: [1]

reasonForChange

The reason for a change made to a feature.

  • Attribute name: reasonForChange (GML), reason_for_change (GeoPackage), Not provided (VectorTiles)

  • Size: 32

  • Multiplicity: [1]

roadClassification

The official designated importance of a road that provides an indication of its expected usage and importance.

  • Attribute name: roadClassification (GML), road_classification (GeoPackage), road_classification (VectorTiles)

  • Size: 21

  • Multiplicity: [1]

routeHierarchy

A classification of the road designed to give the most appropriate route.

  • Attribute name: routeHierarchy (GML), route_hierarchy (GeoPackage), route_hierarchy (VectorTiles)

  • Size: 32

  • Multiplicity: [1]

formOfWay

A description of the road based on its nature or use.

  • Attribute name: formOfWay (GML), form_of_way (GeoPackage), form_of_way (VectorTiles)

  • Size: 42

  • Multiplicity: [1]

trunkRoad

States if the RoadLink forms part of the Trunk Road network

  • Attribute name: trunkRoad (GML), trunk_road (GeoPackage), trunk_road (VectorTiles)

  • Type: Boolean

  • Size: 5

  • Multiplicity: [1]

primaryRoute

States if the RoadLink forms part of the Primary Route network

  • Attribute name: primaryRoute (GML), primary_route (GeoPackage), primary_route (VectorTiles)

  • Type: Boolean

  • Size: 5

  • Multiplicity: [1]

roadClassificationNumber

The official road number assigned by the appropriate authority. Note that this includes at least one letter. For example, ‘A329(M)’

  • Attribute name: roadClassificationNumber (GML), road_classification_number (GeoPackage), road_classification_number (VectorTiles)

  • Type: CharacterString

  • Size: 10

  • Multiplicity: [0..1]

roadName

The name of the road the feature is part of. When a RoadLink is referenced by a Street with a streetStateType of Designated Street Name this is the name used else the name is from Road. Note: Where a feature has more than one name, the language of each name is provided as a 3-digit ISO 639-2 code (‘eng’, ‘cym’, ‘gla’).

  • Attribute name: roadName (GML), road_name (GeoPackage), road_name (VectorTiles)

  • Type: LocalisedCharacterString

  • Size: 255

  • Multiplicity: [0..2]

alternateName

Another name for the road the feature is part of, this is populated with the name captured by Ordnance Survey when it differs from that in Street. Note: Where a feature has more than one name, the language of each name is provided as a 3-digit ISO 639-2 code (‘eng’, ‘cym’, ‘gla’).

  • Attribute name: alternateName (GML), alternate_name (GeoPackage), alternate_name (VectorTiles)

  • Type: LocalisedCharacterString

  • Size: 255

  • Multiplicity: [0..2]

operationalState

Indicator identifying the construction status of the road

  • Attribute name: operationalState (GML), operational_state (GeoPackage), Not provided (VectorTiles)

  • Size: 19

  • Multiplicity: [1]

provenance

The origin and derivation of the three-dimensional geometry of the RoadLink.

  • Attribute name: provenance (GML), provenance (GeoPackage), Not provided (VectorTiles)

  • Size: 23

  • Multiplicity: [1]

directionality

Indication of the direction of traffic flow. The directionality indicates the direction of traffic flow in relation to the direction of digitisation. A road node that is ‘in direction’ means that the traffic moves from start to end node, but ‘against direction’ means the traffic moves from end node to start node. The start and end nodes indicate the direction of digitisation.

  • Attribute name: directionality (GML), directionality (GeoPackage), Not provided (VectorTiles)

  • Size: 21

  • Multiplicity: [1]

length

The calculated two-dimensional length of the RoadLink in metres. Note: A Unit of Measure (uom) is provided as part of the attribute which will always be ‘m’.

  • Attribute name: length (GML), length (GeoPackage), Not provided (VectorTiles)

  • Type: Measure

  • Size: 7,2

  • Multiplicity: [1]

matchStatus

Indicates whether the feature has been matched to a feature in the NSG.

  • Attribute name: matchStatus(GML), match_status(GeoPackage), Not provided (VectorTiles)

  • Size: 39

  • Multiplicity: [1]

alternateIdentifier

Identifier(s) of the Elementary Street Unit from NSG or TRSG.

  • Attribute name: alternateIdentifier(GML), alternate_identifier(GeoPackage), Not provided (VectorTiles)

  • Type: ThematicIdentifier

  • Size: 20

  • Multiplicity: [0..*]

startGradeSeparation

The relative level of the link at the startNode.

  • Attribute name: startGradeSeparation (GML), start_grade_separation (GeoPackage), Not provided (VectorTiles)

  • Type: Integer

  • Multiplicity: [1]

endGradeSeparation

The relative level of the link at the endNode.

  • Attribute name: endGradeSeparation (GML), end_grade_separation (GeoPackage), Not provided (VectorTiles)

  • Type: Integer

  • Multiplicity: [1]

roadStructure

Identifies if this section of road passes through or over a physical structure.

  • Attribute name: roadStructure (GML), roadStructure (GeoPackage), road_structure (VectorTiles)

  • Size: 14

  • Multiplicity: [0..1]

cycleFacility

Identifies if the RoadLink has facilities for a cyclist.

  • Attribute name: cycleFacility(GML), cycle_facility (GeoPackage), cycle_facility (VectorTiles)

  • Multiplicity: [0..1]

roadWidth

An indication of the width of the road carriageway as recorded in the OS MasterMap Topography layer, this must not be used to identify whether individual vehicles can use a route.

  • Attribute name: roadWidthAverage (GML), road_width_average (GeoPackage), road_width_average (VectorTiles)

  • Multiplicity: [0..1]

elevationGain

The elevation gain is calculated from three-dimensional geometry to define the total ascent experienced when passing along a RoadLink feature. The value is expressed both with and against the coordinate order.

  • Attribute name: elevationGainInDirection (GML), elevationGainInOppositeDirection (GML), elevation_gain_in_direction (GeoPackage), elevation_gain_in_opposite_direction (GeoPackage), Not provided (VectorTiles), Not provided (VectorTiles)

  • Multiplicity: [0..1]

formsPartOf

Identifier of the Road or Street to which the RoadLink forms part of.

  • Attribute name: formsPartOf (GML), forms_part_of (GeoPackage), Not provided (VectorTiles)

  • Multiplicity: 0..*

  • Size: 20

startNode INSPIRE

The node coincident with the first vertex of the geometry attribute.

  • Attribute name: startNode

  • Multiplicity: 0..1

  • Size: 20

endNode INSPIRE

The node coincident with the last vertex of the geometry attribute.

  • Attribute name: endNode

  • Multiplicity: 0..1

  • Size: 20

relatedRoadArea

Reference to the topographic representation(s) of the same part of the road.

  • Attribute name: relatedRoadArea (GML), related_road_area (GeoPackage), Not provided (VectorTiles)

  • Multiplicity: 1..*

  • Size: 20

Type:

Type:

Type:

Type:

Type:

Type:

Type:

Type:

Type:

Type:

Type:

Type:

ChangeValue
RoadClassificationValue
RoadFunctionValue
FormOfWayTypeValue
OperationalStateValue
ProvenanceSourceValue
LinkDirectionValue
MatchStatusValue
RoadStructureValue
CycleFacilityType
RoadWidthType
ElevationGainType
Context diagram: RoadLink
Context Diagram for RoadLink.