> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/feature-types/street.md).
# Street
A Street feature extends and specialises the Road feature and in the Path Network product they will only represent Streets made up of PathLinks. A Street feature is populated from the National and Scottish Street Gazetteers and will exist where their Elementary Street Unit geometry has been matched to only PathLinks. They will represent either the complete Street or a section of a Street within an Administrative Unit, Town, or Locality and provides additional information about who is responsible for its naming and or numbering. A PathLink can be referenced by multiple Street features.
Context diagram: Street.
The Street extends the Road feature to provide the additional attribution required to adhere to BS 7666:
* **USRN:** The Unique Street Reference Number is the unique and persistent identifier of a Street assigned by the Roads or Highway Authority.
* **Street Type:** The type of Gazetteer record for which the USRN relates. It is mandatory for all USRNs to be assigned a Street Type.
* **Operational State:** Indicates whether the Street is proposed, under construction, open, or closed (permanently or temporarily).
* **Responsible Authority:** Reference to the authority which performs an administrative function – notably naming and numbering.
A Street will split when it crosses the boundary of an Administrative Area where the local maintenance responsibility changes. A Street could also split at a town or locality boundary to allow properties to be located uniquely upon a street via a unique identifier (i.e. USRN).
{% hint style="info" %}
In the definitions below, users should read the term Highways as Roads when applied to streets in Scotland.
{% endhint %}
## Street Attributes
Any road, footway, path, cycletrack, track or passageway that forms a highway. A highway represents individual subsections of Road which are managed (naming/numbering) by a specified responsible authority.
* **Constraints**: A Street shall have at least one of designatedName (Type 1), descriptor (Type 2), nationalRoadCode (Type 3), or localName (Type 4). If a Street has a descriptor, it shall not have a designatedName.
### id
Unique Street Reference Number (USRN), a unique and persistent identifier assigned by the Roads or Highway Authority.
* **Attribute name:** gml\_id (GML), usrn (GeoPackage), Usrn (Vector Tiles)
* **Type:** CharacterString
* **Size:** 12
* **Multiplicity:** \[1]
### identifier
Uniform Resource Identifier.
* **Attribute name:** identifier (GML), identifier (GeoPackage), Not provided (Vector Tiles)
* **Type:** CharacterString
* **Size:** 29
* **Multiplicity:** \[1]
### inspireId
External object identifier of the spatial object. Note: This is the USRN from the NSG or TRSG or SSG.
* **Attribute name:** inspireId
* **Type**: Identifier
* **Multiplicity:** \[0..1]
### beginLifespanVersion «lifeCycleInfo» «voidable»
Date and time at which this version of the spatial object was inserted or changed in the spatial data set.
{% hint style="info" %}
The time part is always set to zero.
{% endhint %}
* **Attribute name:** beginLifespanVersion (GML), begin\_lifespan\_version (GeoPackage), Not provided (Vector Tiles)
* **Type:** DateTime
* **Multiplicity:** \[1]
### validFrom «voidable»
The time when the transport link set started to exist in the real world.
{% hint style="info" %}
The time part is always set to zero.
{% endhint %}
* **Attribute name:** validFrom (GML), valid\_from (GeoPackage), Not provided (Vector Tiles)
* **Type:** DateTime
* **Multiplicity:** \[1]
### descriptor
Street description allocated by a Street Naming Authority or Highway Authority used to identify a street that does not have a designated name.
{% hint style="info" %}
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’).
{% endhint %}
* **Attribute name**: descriptor (GML), descriptor (GeoPackage), Not provided (Vector Tiles)
* **Type**: LocalisedCharacterString
* **Size**: 120
* **Multiplicity**: \[0..2]
### designatedName
Official name assigned to the highway by a designated Street Naming Authority.
* **Attribute name**: designatedName (GML), designated\_name (GeoPackage), designated\_name (Vector Tiles)
* **Type**: [DesignatedNameType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/designatednametype.md)
* **Multiplicity**: \[0..2]
### localName
Unofficial local name associated to the highway.
{% hint style="info" %}
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’).
{% endhint %}
* **Attribute name**: localName (GML), local\_name (GeoPackage), Not provided (Vector Tiles)
* **Type**: LocalisedCharacterString
* **Size**: 120
* **Multiplicity**: \[0..2]
### reasonForChange
The reason for a change made to a feature.
* **Attribute name**: reasonForChange (GML), reason\_for\_change (GeoPackage), Not provided (Vector Tiles)
* **Type**: [ChangeValue](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-code-lists/changevalue.md)
* **Size**: 32
* **Multiplicity**: \[1]
### streetType
Classification of the type of Street from the National Street Gazetteer.
* **Attribute name**: streetType (GML), street\_type (GeoPackage), Not provided (Vector Tiles)
* **Type**: [StreetTypeValue](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-code-lists/streettypevalue.md)
* **Size**: 35
* **Multiplicity**: \[1]
### operationalState
Indicator identifying the physical nature of the road e.g. Under Construction.
* **Attribute name**: operationalState (GML), operational\_state (GeoPackage), Not provided (Vector Tiles)
* **Type**: [OperationalStateType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/operationalstatetype.md)
* **Multiplicity**: \[1]
### locality
The Populated Place representing the locality that the Street is located within.
{% hint style="info" %}
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’).
{% endhint %}
* **Attribute name**: locality (GML), locality (GeoPackage), Not provided (Vector Tiles)
* **Type**: LocalisedCharacterString
* **Size**: 35
* **Multiplicity**: \[0..2]
### town
The settlement that the Street falls within.
{% hint style="info" %}
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’).
{% endhint %}
* **Attribute name**: town (GML), town (GeoPackage), Not provided (Vector Tiles)
* **Type**: LocalisedCharacterString
* **Size**: 30
* **Multiplicity**: \[0..2]
### administrativeArea
The administrative area that the Street is located within. #
{% hint style="info" %}
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’).
{% endhint %}
* **Attribute name**: administrativeArea (GML), administrative\_area (GeoPackage), Not provided (Vector Tiles)
* **Type**: LocalisedCharacterString
* **Size**: 30
* **Multiplicity**: \[1..2]
### responsibleAuthority
Reference to the authority that has current responsibility for naming and numbering.
* **Attribute name**: responsibleAuthority (GML), responsible\_authority (GeoPackage), responsible\_authority (Vector Tiles)
* **Type**: [ResponsibleAuthority](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/responsibleauthority.md)
* **Multiplicity**: \[1]
### geometryProvenance
Identify where the geometry of the feature originated.
* **Attribute name**: responsibleAuthority (GML), responsible\_authority (GeoPackage), responsible\_authority (Vector Tiles)
* **Type**: [ProvenanceSourceValue](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-code-lists/provenancesourcevalue.md)
* **Multiplicity**: \[1]
### geometry
The aggregated geometry of all the PathLink features which make up the feature.
* **Attribute name**: Not provided (GML), geometry (GeoPackage), Not provided (Vector Tiles)
* **Type**: GM\_MultiCurve
* **Multiplicity**: \[1]
### gssCode
A reference to the unique identifier of administrative areas managed by the Office for National Statistics. Role is used to describe the authority - 'Upper Tier Local Authority', 'Lower Tier Local Authority' and 'Unitary Local Authority'
* **Attribute name**: gssCode (GML), gss\_code (GeoPackage), Not provided (Vector Tiles)
* **Size**: 9
* **Multiplicity**: \[0..2]
### link
The reference to the PathLink features which builds up the Street feature.
* **Attribute name**: link\_href (GML), link (GeoPackage), Not provided (Vector Tiles)
* **Size**: 20
* **Multiplicity**: \[1..\*]
---
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