LogoLogo
OS Docs HomeOS NGDOS APIsOS Download ProductsMore than MapsProduct Refresh Dates
  • 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
          • street
        • Vector tiles overview
          • connecting_node
          • ferry_link
          • ferry_node
          • highway_dedication
          • path_link
          • path_node
          • street
        • GML examples
      • OS MasterMap Highways Network Getting Started Guide
      • OS MasterMap Highways Network Known Data Issues
    • OS MasterMap Water Network Layer
      • Release Notes
        • April 2025
        • January 2025
        • October 2024
        • April 2024
      • OS MasterMap Water Network Layer Overview
        • Feature types in the product
        • Standards and CRS
        • Product supply
      • OS MasterMap Water Network Layer Getting Started Guide
        • Requirements for using the data
        • Structure of the supplied data
        • Loading GML data into a GIS
        • Creating a water network using ESRI software
      • OS MasterMap Water Network Layer Technical Specification
        • Product notes
          • January 2022 product notes
        • Product structure
        • Feature types
          • WatercourseLink
          • HydroNode
        • Structured data types
          • LinearReference
          • PointReference
        • Code lists and enumerations
          • LinkDirectionValue
          • WatercourseFormValue
          • WatercourseProvenanceValue
          • LevelOfDetailValue
          • ReasonForChangeValue
          • VerticalPositionValue
          • HydroNodeCategoryValue
          • WatercourseTypeValue
        • Feature types for future release
          • WatercourseSeparatedCrossing
          • WatercourseLinkSet
          • WatercourseInteraction
        • GML overview
        • GeoPackage overview
          • WatercourseLink
          • HydroNode
        • Vector tiles overview
          • Attribute naming differences
          • HydroNode
        • Data provenance
        • Additional resources
      • OS MasterMap Water Network Layer Downloads
      • OS MasterMap Water Network Layer Known Data Issues
    • 🆕OS Multi-modal Routing Network
      • OS MRN Overview
        • Product supply
        • Coordinate reference system
        • Feature types overview
          • Transport Link overview
          • Transport Node overview
          • Turn Restriction overview
        • OpenStreetMap schema
        • Modal change
        • Grade separation
      • OS MRN Getting Started Guide
        • pgRouting
        • GraphHopper
        • OpenTripPlanner
        • Working with OpenStreetMap files
      • OS MRN Technical Specification
        • Feature types
          • Transport Link
          • Transport Node
          • Turn Restriction
        • Code lists
          • AccessValue
          • BridgeValue
          • FordValue
          • HighwayValue
          • JunctionValue
          • OneWayValue
          • RailServiceValue
          • RailwayValue
          • RestrictionLabelValue
          • RouteValue
          • TunnelValue
      • OS MRN Known Data Issues
    • OS Open Rivers
      • Release notes
        • April 2025
        • October 2024
      • OS Open Rivers Overview
        • OS Open Rivers Data
        • Product supply
        • Coverage and file sizes
      • OS Open Rivers Technical Specification
        • Product structure
        • Feature types
          • WatercourseLink
          • HydroNode
        • Code lists
          • LinkDirectionValue
          • WatercourseFormValue
          • HydroNodeCategoryValue
        • GML overview
        • Esri shapefile overview
          • WatercourseLink
          • HydroNode
        • GeoPackage overview
          • GeoPackage format changes April 2023
          • WatercourseLink
          • HydroNode
        • Vector tiles overview
          • Vector tiles schema
          • WatercourseLink
          • HydroNode
      • OS Open Rivers Downloads
      • OS Open Rivers Known Data Issues
    • OS Open Roads
      • Release notes
        • April 2025
        • October 2024
        • April 2024
      • OS Open Roads Overview
        • OS Open Roads Data
        • Feature types
        • Product supply
        • Coverage and file sizes
      • OS Open Roads Technical Specification
        • Product structure
        • Feature types
          • RoadLink
          • RoadNode
          • MotorwayJunction
        • Code lists and enumerations
          • RoadClassificationValue
          • RoadFunctionValue
          • FormOfWayValue
          • RoadStructureValue
          • FormOfRoadNodeValues
        • GML overview
        • Esri shapefile overview
          • RoadLink
          • RoadNode
        • GeoPackage overview
          • RoadLink
          • RoadNode
        • Vector Tiles overview
          • RoadLink
          • RoadNode
          • MotorwayJunction
      • OS Open Roads Downloads
      • OS Open Roads Known Data Issues
  • Topography
    • Topography Portfolio Information
    • OS MasterMap Topography Layer – Building Height Attribute
      • Release Notes
        • April 2025
        • October 2024
        • April 2024
      • OS MasterMap Topography Layer – Building Height Attribute Overview
        • Product details
        • Product attributes
        • Product supply information
        • Product data
      • OS MasterMap Topography Layer – Building Height Attribute Getting Started Guide
        • What do I need to use this data?
        • Product supply information
        • Managing .csv data
        • Loading data into a GIS
        • Joining Building Height Attribute data to a OS MasterMap Topography Layer
        • Importing data into a database
      • OS MasterMap Topography Layer – Building Height Attribute Technical Specification
        • Product supply
        • Product structure
        • Feature type
          • Building Height Attribute
        • Code list
          • BHA_ConfValue
        • Example record
      • OS MasterMap Topography Layer – Building Height Attribute Downloads
      • OS MasterMap Topography Layer – Building Height Attribute Known Data Issues
    • OS MasterMap Greenspace Layer
      • Release Notes
        • April 2025
        • October 2024
      • OS MasterMap Greenspace Layer Overview
        • Product details
        • Function and form
        • Data creation
        • Product supply
      • OS MasterMap Greenspace Layer Getting Started Guide
        • Using GeoPackage and Vector Tile formats
        • QGIS
        • ArcGIS ArcMap
        • PostGIS
        • MapInfo Professional
        • CadCorp Map Modeller
        • Loading the data
      • OS MasterMap Greenspace Layer Technical Specification
        • Product classification and structure
        • Feature types
          • Greenspace Area
        • Code lists and Enumerations
          • Function
          • Form
        • Function hierarchy
        • Form hierarchy
        • OS Open Greenspace lookup table
        • GML overview
        • ESRI Shapefile overview
        • GeoPackage overview
        • Vector Tiles overview
        • Attribute mapping
        • GML example record
      • OS MasterMap Greenspace Layer Downloads
      • OS MasterMap Greenspace Layer Known Data Issues
    • OS MasterMap Sites Layer
      • Release Notes
        • April 2025
        • October 2024
        • April 2024
      • OS MasterMap Sites Layer Overview
        • Product details
        • Product supply
        • Coordinate reference systems
        • Product glossary
      • OS MasterMap Sites Layer Getting Started Guide
        • QGIS
        • Cadcorp SIS Desktop
        • FME Desktop
        • ArcGIS and ArcMap
        • MapInfo Professional
        • Astun Technology GML/KML Loader
      • OS MasterMap Sites Layer Technical Specification
        • Data specification overview
        • Theme definitions
          • Air transport
          • Education
          • Medical care
          • Rail transport
          • Road transport
          • Water transport
          • Utility or industrial
        • Functional site extent overview
        • Access point overview
        • Routing point overview
        • Feature types
          • FunctionalSite
          • AccessPoint
          • RoutingPoint
        • Enumerations
          • FunctionStatusValue
          • StakeholderRoleValue
          • ExtentDefinitionValue
          • AccessTypeValue
          • NatureOfAccessValue
          • AccessUseRestrictionValue
          • AccessMechanismValue
          • AccessDirectionValue
          • ReasonForChangeValue
        • Code lists
          • FunctionValue
          • FunctionThemeValue
        • Geometry
        • GML
        • GeoPackage
          • Functional Site attributes
          • Access Point attributes
          • Routing Point
        • Vector tiles
      • OS MasterMap Sites Layer Downloads
      • OS MasterMap Sites Layer Known Data Issues
    • OS MasterMap Topography Layer
      • Release Notes
        • April 2025
        • March 2025
        • February 2025
        • December 2024
        • November 2024
        • September 2024
        • August 2024
        • June 2024
        • May 2024
        • April 2024
      • Product Refresh Dates
      • OS MasterMap Topography Layer Overview
        • Product purpose
        • Product applications
        • Product details
        • Styling
        • Product themes
        • Coordinate reference systems
        • Product supply
          • Product supply mechanism and options
          • GML supply options
          • Updating data holdings
        • Change management and data association
      • OS MasterMap Topography Layer Getting Started Guide
        • QGIS
        • ArcGIS Pro
        • ArcMap
        • Cadcorp SIS Desktop Express
        • MapInfo Professional
        • FME Desktop
        • Astun Technology GML/KML Loader
      • OS MasterMap Topography Layer Getting Started with Styling Guide
        • Styling method overview
        • How to use the SQL scripts
        • How to use the stylesheets
        • Attribute tables
      • OS MasterMap Topography Layer Standard Styling Specification
        • Cartographic styling
        • Cartographic style definitions
        • Cartographic styling for new descriptive terms
          • TopographicArea
          • TopographicLine
          • TopographicPoint
        • Shared symbol geometry
        • Point symbols
        • Fill symbols
        • Compound symbols
        • Pattern definitions
        • Line styles
        • Cartographic descriptive term style definitions
      • OS MasterMap Topography Layer Technical Specification
        • File naming
        • Supply mechanisms
        • Product themes
          • Administrative Boundaries
          • Buildings
          • Heritage and Antiquities
          • Land
          • Rail
          • Roads, Tracks, and Paths
          • Structures
          • Terrain and Height
          • Water
        • Feature types
          • TopographicPoint
          • TopographicLine
          • TopographicArea
          • BoundaryLine
          • CartographicSymbol
          • CartographicText
        • Complex attributes
          • ChangeHistoryType
          • HeightAboveDatumType
          • HeightAboveGroundLevelType
          • TextRenderingType
        • Enumerations
          • ThemeValue
          • DescriptiveGroupValue
          • AccuracyOfPositionValue
          • ReasonForChangeValue
          • PhysicalPresenceValue
          • MakeValue
          • DescriptiveTermValue
        • Geometric data types
        • Topology
        • Seamless data supply
        • Feature lifecycles and tracking change
          • Polygon feature lifecycle rules
          • Line feature lifecycle rules
          • General point feature lifecycle rules
        • GML overview
          • GML examples
        • GeoPackage overview
        • Vector tiles overview
        • Attribute mapping
        • Geometry mapping
        • COU overview
        • Feature code lookup table
        • Change value descriptions
        • Administrative boundary alignments
      • OS MasterMap Topography Layer Downloads
      • OS MasterMap Topography Layer Known Data Issues
    • OS Open Greenspace
      • Release Notes
        • April 2025
        • October 2024
      • OS Open Greenspace Overview
        • Product details
        • Data creation
        • Product supply
      • OS Open Greenspace Getting Started Guide
        • QGIS
        • ESRI ArcGIS
        • PostGIS
        • MapInfo Professional
        • Cadcorp Map Modeller
      • OS Open Greenspace Technical Specification
        • Data structure
        • Feature types
          • GreenspaceSite
          • AccessPoint
        • Code lists
          • AccessTypeValue
          • FunctionValue
        • GML overview
        • GeoPackage overview
        • Vector tiles overview
        • Attribute mapping
      • OS Open Greenspace Downloads
      • OS Open Greenspace Known Data Issues
  • Identifiers
    • Identifiers Portfolio Information
    • OS Open Identifiers Family Information
    • OS Open Linked Identifiers
      • Release Notes
        • May 2025 – Epoch 43
        • March 2025 – Epoch 42
        • February 2025 – Epoch 41
        • January 2025 – Epoch 40
        • November 2024 – Epoch 39
        • October 2024 – Epoch 38
        • August 2024 – Epoch 37
        • July 2024 – Epoch 36
      • OS Open Linked Identifiers Overview
        • Uses of OS Open Linked Identifiers
        • Product details
      • OS Open Linked Identifiers Getting Started Guide
        • Linked identifiers
        • Instructions to install/load into a database application
      • OS Open Linked Identifiers Technical Specification
        • Product structure
        • Linked Identifier data (CSV) attributes
        • Product Version Information file (JSON)
        • RoadLink_TOID_TopographicArea_TOID_2
        • Road_TOID_TopographicArea_TOID_3
        • Street_USRN_TopographicArea_TOID_4
        • BLPU_UPRN_TopographicArea_TOID_5
        • RoadLink_TOID_Road_TOID_7
        • RoadLink_TOID_Street_USRN_8
        • BLPU_UPRN_RoadLink_TOID_9
        • Road_TOID_Street_USRN_10
        • BLPU_UPRN_Street_USRN_11
        • ORRoadLink_GUID_RoadLink_TOID_12
        • ORRoadNode_GUID_RoadLink_TOID_13
      • OS Open Linked Identifiers Known Data Issues
    • OS Open TOID
      • Release Notes
        • May 2025 – Epoch 43
        • March 2025 – Epoch 42
        • February 2025 – Epoch 41
        • January 2025 – Epoch 40
        • November 2024 – Epoch 39
        • September 2024 – Epoch 38
        • August 2024 – Epoch 37
        • July 2024 – Epoch 36
      • OS Open TOID Overview
        • Product supply
        • Coordinate reference system
      • OS Open TOID Technical Specification
        • Product Details
        • Data structure
        • Product Supply
      • OS Open TOID Known Data Issues
    • OS Open UPRN
      • Release Notes
        • May 2025
        • March 2025
        • February 2025
        • December 2024
        • November 2024
        • September 2024
      • OS Open UPRN Overview
        • Product supply
        • Coordinate reference systems
      • OS Open UPRN Technical Specification
        • Feature type
          • OS Open UPRN
      • OS Open UPRN Known Data Issues
    • OS Open USRN
      • Release Notes
        • May 2025
        • April 2025
        • March 2025
        • February 2025
        • January 2025
        • December 2024
        • November 2024
        • October 2024
        • September 2024
        • August 2024
        • July 2024
      • OS Open USRN Overview
        • Product supply
        • Coordinate reference system
      • OS Open USRN Technical Specification
        • Street Type
        • Feature type
          • OS Open USRN
        • Geometry
        • Metadata
      • OS Open USRN Known Data Issues
  • Height and imagery
    • Height and Imagery Portfolio Information
    • 🆕OS 3D Mesh (Beta Product)
      • 🆕OS 3D Mesh Overview
        • 🆕Product data
        • 🆕Feature modelling
      • 🆕OS 3D Mesh Getting Started Guide
        • 🆕Importing an OS integrated mesh model into ArcGIS Pro
          • 🆕Navigation
          • 🆕Scene lighting
          • 🆕Adding additional vector data
          • 🆕Adding 2D polygon layers
          • 🆕Adding 3D line feature layers
          • 🆕Adding point datasets
          • 🆕Adding miscellaneous 3D models
          • 🆕'Line of sight' analysis
          • 🆕Animation
        • 🆕Importing an OS integrated mesh model into ArcGIS Online
          • 🆕Adding data to AGOL
          • 🆕Creating a 3D scene
          • 🆕Adding an OS mesh
          • 🆕Spatial reference systems
          • 🆕Defining 'Layer Style' options
          • 🆕Polygon layers
          • 🆕Line layers
          • 🆕Point layers
          • 🆕Text labels
          • 🆕Custom 3D models
          • 🆕Spatial analysis and reporting
    • OS Terrain 5
      • OS Terrain 5 Overview
        • Product supply
        • Pre-requisites
        • Data structure
        • Source data
        • The National Grid
      • OS Terrain 5 Technical Specification
        • Grid data
        • Contour data
        • GML Feature types
        • Esri shapefile
        • Metadata
        • Product glossary
      • OS Terrain 5 Downloads
      • OS Terrain 5 Known Data Issues
    • OS Terrain 50
      • OS Terrain 50 Overview
        • Product supply
        • Pre-requisites
        • Data structure
        • Source data
      • OS Terrain 50 Technical Specification
        • Grid data
        • Contour data
        • GML Feature Types
        • Esri Shapefile
        • GeoPackage
        • Vector tiles
        • Metadata
        • Product glossary
      • OS Terrain 50 Downloads
      • OS Terrain 50 Known Data Issues
    • OS MasterMap Imagery Layer
      • OS MasterMap Imagery Layer Technical Specification
        • Image appearance
        • Ancillary files
      • OS MasterMap Imagery Layer Downloads
      • OS MasterMap Imagery Layer Known Data Issues
  • Getting Started
    • Getting Started with GeoPackage
      • Accessing GeoPackage data via GIS software
      • Loading GeoPackage into a database
      • Reading GeoPackage data via FME
    • Getting Started with Vector Tiles
      • Installing vector tiles in GIS software
      • Using OS styles to get started in Mapbox Studio
      • Hosting and serving your own vector tiles
      • Using OS styles on vector tiles you have created
      • Product downloads
  • Resources
    • 📅Product Refresh Dates
    • 📣Product Announcements
    • 🗺️PSGA Product Summary
    • 🔍OS MasterMap Product Viewer Tool
    • OS Product Roadmap
    • End of Life Product Notices
      • End of Life Notice – OS MasterMap Water Network Layer
    • Accessibility
    • Contact Us
    • 📃Terms and Conditions
    • 📔Open Identifiers Policy
    • Use of NSG and OS Data
Powered by GitBook
On this page

Was this helpful?

Export as PDF

Last updated 6 months ago

Was this helpful?

Loading and displaying Shapefile supply

There are two possible ways of loading and displaying the shapefile data in ESRI ArcGIS. The shapefile data can be loaded straight into ArcGIS. However, if more than one 25km² tile is being loaded, the rendering performance can become an issue. The recommended way of loading the data is to use a file geodatabase to house the data. This is the method which will be described in this guide.

Open ArcCatalog. Choose a folder where the file geodatabase is to be created.

Right-click on the folder and in the context menu select ‘New’ and then ‘File Geodatabase’. Give the new file geodatabase a suitable name for ease of reference by highlighting the geodatabase and typing a new name.

Once created, right-click on the file geodatabase, and select ‘Import’ and then ‘Feature Class (multiple)’.

In the next window, browse to the location containing the data you want to import. Because the individual shapefiles begin with the 5 km prefix, it is possible to import more than one OS MasterMap Greenspace Layer tile into the geodatabase as per user requirements.

Click on the button to the right of the blank window under ‘input features’ and navigate to the folder that contains the OS MasterMap Greenspace Layer shapefile data.

Select all the shapefiles that are required and click ‘Add’.

The shapefiles selected will now appear as a list in the import feature class window. The output file geodatabase should default to the one which has been previously selected. Click ‘OK’. The window will close and now ArcCatalog will import the feature classes into the file geodatabase. A dialog box will appear when the process is complete.

If the file geodatabase is now highlighted, a list of the imported feature classes should be visible. In this example, two shapefiles have been imported.

A useful point to note is that loading the shapefiles into a file geodatabase will automatically add spatial indexes to the data in the import process. There is therefore no need to manually add one once the data has been loaded, which would be the case if shapefiles had been loaded into ArcGIS without using the file geodatabase option. As has been previously mentioned, the addition of a spatial index greatly improves rendering performance.

Start ArcMap. Click on the ‘Import Data’ button in the top toolbar.

In the window that appears, navigate to the location of the file geodatabase just created. Select the feature classes that are required and click ‘Add’.

The data will load into ArcMap. Although ArcMap does put the shapefiles into a more logical sequence, the user can move the layers as they wish. The data will, of course, load in as un-styled data. ArcMap will assign a random style to the data.

Loading multiple Shapefiles for larger areas of interest

If loading a larger area of interest, it is recommended that the user merge the shapefiles together before loading into the file geodatabase. This procedure is described later in this guide. Doing this will also mean that the supplied layer files for styling will only need to be applied once to the data and all the styles will work properly.

If, however, the user simply wants to load multiple areas using the file geodatabase option, there is no mandatory requirement to merge shapefiles together.

To add another 25 km² tile of data in ArcMap, that was previously loaded into the file geodatabase created earlier, simply click ‘Add Data’ and repeat the procedure described above for loading the individual layers for the subsequent tile(s). The user may wish to group the layers for each 100 km tile loaded, for example, all the tiles in 100 km grid square ‘TR’, in the table of contents window to avoid confusion.

To do this, select all the layers within the 100 km tile added, right-click, and then select ‘Group’. The additional layers can be styled as before, using a predefined layer file, or manually as required.

The example above shows that all the layers for TR have been loaded into ArcMap from within the file geodatabase. Another advantage of the file geodatabase option in ArcGIS is that, if you want to add another tile of data later, you can simply import the shapefiles into the same file geodatabase using ArcCatalog and then display them in ArcMap.

Merging Shapefiles and removing duplicate features from the data

As has already been stated, OS MasterMap Greenspace Layer is supplied as ‘hairy tiles’ with features which cross a tile edge being supplied in both tiles in which the feature appears. These duplicate features will occur if more than one 25km2 tile is loaded into a file geodatabase. In many instances, the user will not need to remove duplicate features along the tile edges as the features will display perfectly clearly with one duplicate feature overlying the other.

There may, however, be instances where the user wishes to carry out some form of analysis using feature counts contained within the data. In this case, the data will need to have the duplicate features removed.

To remove duplicate features in ArcMap, it is necessary to firstly merge the tiles together before removing the duplicate features. This procedure can take some time, so the user should consider if this is really needed.

Firstly, the tiles need to be merged to create new feature classes within the file geodatabase containing the original data (or to a completely new file geodatabase or shapefile if required).

Using either ArcMap or ArcCatalog, from the main menu, select ‘Geoprocessing’ followed by ‘Merge’. In the next window, select the layers to be merged. In this example, two feature classes: TR15NE and TR15NW, are being merged. All the attribution is being copied into the new feature class, though the user can specify what attributes need to be copied. The user can also specify the output required. This can be a new feature class within a file geodatabase or a shapefile. In this example a new feature class containing the merged data will be created.

Click ‘OK’ when all the feature classes (or shapefiles) to be merged have been selected. It can be seen using this method, several OS MasterMap Greenspace Layer tiles could be merged, although only two are shown in this example. ArcGIS will then merge the files and load the newly created feature class (or a shapefile if that was being used), into the map window. Depending upon the sizes and number of tiles being merged, this could take some time. A dialog box will appear when the process is finished.

In the example shown below, a new feature class within the original file geodatabase used to hold the data, has been created. This new feature class is called ‘TR Merged’ and covers the entire area of the two separate feature classes previously loaded into the geodatabase. This new feature class has been styled using the ESRI stylesheets for OS MasterMap Greenspace Layer available on GitHub.

The ‘Dissolve’ function in ArcGIS will remove the duplicated features along the tile boundaries. This procedure can be carried out in either ArcCatalog or ArcMap. Firstly select ‘Geoprocessing’ and then ‘Dissolve’ from the main menu.

The user will then need to specify which merged file from which duplicate features are to be removed. In this example, we are looking at the TR Merged feature class.

We are going to save the de-duplicated data as a feature class within the original file geodatabase called ‘TR_Dissolved’. All the dissolve fields in the box need to be ticked except the ObjectID field as otherwise the attribution will not be carried over to the new dissolved file. Once complete, the new dissolved feature class will be loaded into ArcMap. This new dissolved feature class will contain no duplicate features. This procedure could also be performed using shapefiles simply loaded into ArcMap without using a file geodatabase.

The new feature class can now be styled as previously described. A count using the attribute table on both the original merged file and the dissolved file will confirm that the dissolved shapefile contains fewer features. The count below shows the merged feature class with duplicates contains 34 031 features.

The count below shows that the dissolved feature class contains 33 869 features.

Styling the ESRI Shapefile supply

Predefined stylesheets for OS MasterMap Greenspace Layer are available to download from the Ordnance Survey GitHub page below:

Click the 'Code' drop-down button and then click 'Download ZIP'.

To style your OS MasterMap Greenspace Layer data, first download the zip file from the above GitHub repository, then extract and save the extracted files to your preferred location. When styling ESRI shapefiles in ArcMap, you will need to navigate to ESRI Shapefile Stylesheets > ESRI stylesheets (LYR). There are currently no predefined stylesheets for styling GML in ArcMap.

Inside the respective subfolders for each stylesheet type is a ‘Quick Start Guide’ that can be followed to style your OS MasterMap Greenspace Layer data.

Loading and displaying the GML supply

The GML data can be imported into ArcGIS using the Quick Import function in ArcToolbox. The data will be imported un-styled. Users should also note that due to the large file sizes of some of the 25km2 grid tiles, especially within larger cities, this import may take time to process.

The user will need to specify the type of data being imported (in this case, GML data) and browse to the files where the GML data is stored.

The quick import will create a new file geodatabase into which to import the data. Once the database location and name has been selected, click ‘OK’ in the dialog box as shown below to start the quick import.

Once the quick import function has been completed, the data can be added using the usual ‘Add Data’ button in ArcMap and selecting all the layers from the newly created file geodatabase.

The data will be loaded un-styled as shown in the example below.

The resulting imported data will then appear in the ArcMap window and can then be styled according to user requirements. The user should manually select the column header of the appropriate table within the data on which to base the styling. This is because in the GML imported data, the column header information is not shortened, unlike the shapefile data (see technical specification). Shapefile data is limited to eight characters within the column header. GML imported data is not limited in this way. In the example below, we are matching the column ‘priFunc’ in the ESRI lyr file with the primaryFunction column header in the imported GML data.

The screenshot above shows the GML imported data styled using a predefined ESRI .lyr file.

  1. Topography
  2. OS MasterMap Greenspace Layer
  3. OS MasterMap Greenspace Layer Getting Started Guide

ArcGIS ArcMap

PreviousQGISNextPostGIS
  • Loading and displaying Shapefile supply
  • Loading multiple Shapefiles for larger areas of interest
  • Merging Shapefiles and removing duplicate features from the data
  • Styling the ESRI Shapefile supply
  • Loading and displaying the GML supply
GitHub - OrdnanceSurvey/OS-MasterMap-Greenspace-stylesheets: Ordnance Survey stylesheets for greenspace premium and open productsGitHub
Logo
ArcCatalog window display of New File Geodatabase menu option.
New file geodatabase displayed in ArcCatalog.
ArcCatalog window showing Import - Feature Class (multiple) menu option.
Dialog box display of importing Greenspace feature classes into ArcGIS.
Dialog box for adding shapefile layers.
Dialog box to add multiple shapefile feature classes to Geodatabase.
Display showing feature classes added to a geodatabase.
Import data icon in ArcMap.
Dialog showing datasets to be loaded into ArcMap.
Display showing un-styled data loaded into ArcMap window.
Dialog showing grouping of layers.
Display showing layers selected for grouping.
Display showing Geoprocessing - Merge option.
Merge dialog box.
Display showing new dataset containing merged feature classes.
Display showing new feature class styled using the ESRI stylesheets for OS MasterMap Greenspace Layer.
Menu list showing Geoprocessing - Dissolve option.
Display showing selected features to be dissolved.
Dissolved features shown un-styled in map frame.
Dialog showing total count of merged feature class.
Dialog showing total count for dissolved feature class.
Display of ArcToolbox Quick Import function.
ArcToolbox dialog to specify source for quick import.
ArcToolbox dialog showing database name and location into which data will be imported.
Adding layers from geodatabase in ArcMap.
Display showing data added un-styled in ArcMap.
ArcMap display of matching the column ‘priFunc’ in the ESRI lyr file with the primaryFunction column header in the imported GML data.
ArcMap window that shows the .GML imported data styled using a predefined ESRI .lyr file.
ArcCatalog window display of New File Geodatabase menu option.
New file geodatabase displayed in ArcCatalog.
ArcCatalog window showing Import - Feature Class (multiple) menu option.
Dialog box display of importing Greenspace feature classes into ArcGIS.
Dialog box for adding shapefile layers.
Dialog box to add multiple shapefile feature classes to Geodatabase.
Display showing feature classes added to a geodatabase.
Import data icon in ArcMap.
Dialog showing datasets to be loaded into ArcMap.
Display showing un-styled data loaded into ArcMap window.
Dialog showing grouping of layers.
Display showing layers selected for grouping.
Display showing Geoprocessing - Merge option.
Merge dialog box.
Display showing new dataset containing merged feature classes.
Display showing new feature class styled using the ESRI stylesheets for OS MasterMap Greenspace Layer.
Menu list showing Geoprocessing - Dissolve option.
Display showing selected features to be dissolved.
Dissolved features shown un-styled in map frame.
Dialog showing total count of merged feature class.
Dialog showing total count for dissolved feature class.
Display of ArcToolbox Quick Import function.
ArcToolbox dialog to specify source for quick import.
ArcToolbox dialog showing database name and location into which data will be imported.
Adding layers from geodatabase in ArcMap.
Display showing data added un-styled in ArcMap.
ArcMap display of matching the column ‘priFunc’ in the ESRI lyr file with the primaryFunction column header in the imported GML data.
ArcMap window that shows the .GML imported data styled using a predefined ESRI .lyr file.