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On this page
  • Temporal filtering
  • Feature type attributes
  • osid
  • versiondate
  • versionavailablefromdate
  • versionavailabletodate
  • changetype
  • geometry
  • geometry_length_m
  • theme
  • description
  • routehierarchy
  • roadclassificationnumber
  • name1_text
  • name1_language
  • name2_text
  • name2_language
  • alternatename1_text
  • alternatename1_language
  • alternatename2_text
  • alternatename2_language
  • capturespecification
  • presenceofpavement_sideofroad
  • presenceofpavement_minimumwidth_m
  • presenceofpavement_averagewidth_m
  • presenceofpavement_evidencedate
  • presenceofpavement_updatedate
  • presenceofpavement_source
  • presenceofpavement_capturemethod
  • roadlinkid

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  1. DATA STRUCTURE
  2. OS NGD Transport
  3. Transport Network

Pavement Link

PreviousPath NodeNextRailway Link

Last updated 1 month ago

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A subsection of the Road Link geometry that indicates where there is pavement on either side of the road.

Temporal filtering

The earliest date on which you can request a one-off snapshot of a date in the past for data in this feature type is 27 September 2023.

Any data temporally filtered earlier than the specified earliest date noted above for the data schema version may contain data inconsistencies.

Feature type attributes

The following sub-sections provide details about the attributes included with this feature type, their data types in the different output formats, and other important metadata about them.

osid

Primary identifier for the feature. The OSID is a Globally Unique Identifier (GUID) and requires no centralised authority to ensure uniqueness. Note that the same OSID can occur in more than one feature type when a single feature is represented multiple times in the OS NGD.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 36

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

versiondate

Date when the version was last updated.

  • Data Types: String (GeoJSON), Date (GPKG), Date (CSV)

  • Nullable: false

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

versionavailablefromdate

The date this version of the feature became the latest version.

  • Data Types: String (GeoJSON), DateTime (GPKG), DateTime (CSV)

  • Nullable: false

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

versionavailabletodate

The date this version of the feature was superseded by an update or ceased to exist.

  • Data Types: String (GeoJSON), DateTime (GPKG), DateTime (CSV)

  • Nullable: true

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

changetype

The type of change that generated a new version of the feature.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 50

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

geometry

Geometry for the feature.

  • Data Types: Geometry (GeoJSON), Geometry (GPKG), WKT (CSV)

  • Nullable: false

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

  • Geometry Type: LineString

geometry_length_m

The measured length of the geometry in metres.

  • Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)

  • Nullable: false

  • Precision: 15

  • Scale: 3

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

theme

The OS NGD theme to which the feature belongs.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 40

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

description

A single descriptive value intended for a quick understanding of what the feature represents.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 10

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

routehierarchy

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

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 32

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: Yes

  • Data Schema Version: 1.0

roadclassificationnumber

The official road number assigned by the appropriate authority, for example, M6.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 10

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: Yes

  • Data Schema Version: 1.0

name1_text

Name assigned to identify the feature.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 254

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: Yes

  • Data Schema Version: 1.0

name1_language

The language the name is expressed in, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 3

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

name2_text

The alternative language name assigned to identify the feature.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 254

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: Yes

  • Data Schema Version: 1.0

name2_language

The language the name is expressed in, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 3

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

alternatename1_text

Another name for the Road that the feature is part of. This is populated with the name captured by Ordnance Survey when it differs from that in Street.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 254

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: Yes

  • Data Schema Version: 1.0

alternatename1_language

The language the name is expressed in, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 3

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

alternatename2_text

Another name for the Road that the feature is part of. This is populated with the name captured by Ordnance Survey when it differs from that in Street.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 254

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: Yes

  • Data Schema Version: 1.0

alternatename2_language

The language the name is expressed in, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 3

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

capturespecification

Indicates the capture specification used by OS when capturing the feature. This could either be Urban, Rural or Moorland.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length:

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_sideofroad

Indicates which side of the Road the presence of pavement is located, which can be either side of a Road Link.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 5

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_minimumwidth_m

Indicates the minimum width of a subsection of a Road Link represented by the Pavement Link measured in metres.

  • Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)

  • Nullable: false

  • Precision: 6

  • Scale: 2

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_averagewidth_m

Indicates the average width of a subsection of a Road Link represented by the Pavement Link measured in metres.

  • Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)

  • Nullable: false

  • Precision: 6

  • Scale: 2

  • OS NGD API – Features Filterable: Yes

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_evidencedate

The date on which the latest evidence was gathered to make an update if required. For example, the date of collection by a surveyor or third party information received.

  • Data Types: String (GeoJSON), Date (GPKG), Date (CSV)

  • Nullable: true

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_updatedate

Date when the pavement presence was last updated.

  • Data Types: String (GeoJSON), Date (GPKG), Date (CSV)

  • Nullable: false

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_source

Indicates the data source of the pavement presence.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: true

  • Max Length: 85

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

presenceofpavement_capturemethod

The capture method describes how the pavement presence was created, for example, via remote survey or via an automated process.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 25

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

roadlinkid

The unique identifier (OSID) of the Road Link feature that the Pavement Link is related to.

  • Data Types: String (GeoJSON), String (GPKG), String (CSV)

  • Nullable: false

  • Max Length: 36

  • OS NGD API – Features Filterable: No

  • OS Select+Build Filterable: No

  • Data Schema Version: 1.0

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

Code List Name:

changetypevalue
themevalue
pavementdescriptionvalue
roadfunctionvalue
languagevalue
languagevalue
languagevalue
languagevalue
capturespecificationvalue
sideofroadvalue
capturemethodvalue

Loading OS NGD CSV files into databases

Comma-separated values (CSV) file format is universally supported for easy ingestion into all major database products. Before loading OS NGD data contained in CSV files into a database, it is necessary to create relevant tables. Data definition language (DDL) statements for PostgreSQL, SQL Server and Oracle can be accessed in our .

For instructions on loading CSV files, see the guide.

OS NGD Resources GitHub repository
Getting Started with CSV