Road

A Road feature is a link set which represents a collection of Road Link features that share the same name (for example, Bilston Road) or classification number (for example, A41), used primarily by motorised vehicles. A road will reference the complete collection of Road Link features, irrespective of which authority boundary it falls within. The feature type will include Motorways, A Roads, B Roads, and Named Thoroughfares (roads).

The link set may not be contiguous across junctions or where a classified road consists of separate sections, which may be separated by some considerable distance. In addition, the same Road Link feature may be referenced by multiple Road features.

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 29 September 2022.

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

toid

Topographic Identifier (TOID) of the feature, as published in the OS MasterMap suite of products.

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

• Nullable: true

• Max Length: 20

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The date this version of the feature was superseded by an update or ceased to exist.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

• Code List Name: changetypevalue

• Max Length: 50

• OS NGD API – Features Filterable: Yes

• 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: MultiLineString

geometry_length

The measured length of the geometry in metres.

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

• Nullable: false

• Precision: 15

• Scale: 6

• OS NGD API – Features Filterable: Yes

• OS Select+Build Filterable: No

• Data Schema Version: 1.0

theme

The OS NGD theme to which this feature belongs.

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

• Nullable: false

• Code List Name: themevalue

• 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

• Code List Name: roaddescriptionvalue

• Max Length: 4

• OS NGD API – Features Filterable: Yes

• OS Select+Build Filterable: Yes

• Data Schema Version: 1.0

designatedname1_text

Official name assigned to the Road by a designated Street Naming Authority.

• 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

designatedname1_language

The language of designatedname1, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').

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

• Nullable: true

• Code List Name: languagevalue

• Max Length: 3

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: No

• Data Schema Version: 1.0

designatedname1_responsibleauthorityidentifier

Identifier of the authority that has current responsibility for naming and numbering.

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

• Nullable: true

• Max Length: 4

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: Yes

• Data Schema Version: 1.0

designatedname1_responsibleauthorityname

Name of the authority that has current responsibility for naming and numbering.

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

• Nullable: true

• Max Length: 100

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: Yes

• Data Schema Version: 1.0

designatedname2_text

Official name assigned to the Road by a designated Street Naming Authority.

• 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

designatedname2_language

The language of designatedname2, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').

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

• Nullable: true

• Code List Name: languagevalue

• Max Length: 3

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: No

• Data Schema Version: 1.0

designatedname2_responsibleauthorityidentifier

Identifier of the authority that has current responsibility for naming and numbering.

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

• Nullable: true

• Max Length: 4

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: Yes

• Data Schema Version: 1.0

designatedname2_responsibleauthorityname

Name of the authority that has current responsibility for naming and numbering.

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

• Nullable: true

• Max Length: 100

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: Yes

• Data Schema Version: 1.0

nationalroadcode

The national number of the Road or Street.

• 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

roadclassification

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

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

• Nullable: true

• Code List Name: roadclassificationvalue

• Max Length: 21

• OS NGD API – Features Filterable: Yes

• OS Select+Build Filterable: Yes

• Data Schema Version: 1.0

Road Link Reference

A cross reference table mapping Road to Road Link and thereby linking the identifiers of these two feature types so that you can understand the full extent of a named way. The following sub-sections provide details about the attributes included in this cross reference table, their data types in the different output formats, and other important metadata about them.

roadlinkid

The identifier of the Road Link feature.

• 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

roadid

The identifier for the Road feature.

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

• Nullable: false

• OS NGD API – Features Filterable: No

• OS Select+Build Filterable: No

• Data Schema Version: 1.0

roadversiondate

The date this version of the feature entered the OS National Geographic Database.

• 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