> 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/maintenance.md).
# Maintenance
Maintenance provides information about whether the path is maintained at public expense by a national or local highway authority, a road authority, or is maintained by another responsible organisation (i.e. not maintained at public expense). If a path is prospectively maintainable at public expense, then this is not currently maintained by a road or highway authority, but the responsible organisation has started the process for a highway or road authority to become responsible for the maintenance of the street at public expense.
{% hint style="warning" %}
Maintenance responsibility is not an indication of ownership.
{% endhint %}
Context diagram: Maintenance
A Maintenance feature will reference back to the Path Network through a Network Reference and will reference a Street Feature. Features which are a partial reference will provide a Network Reference Location.
## Maintenance Attributes
Indication of whether the highway is maintained by a Highways Authority, Local Highways Authority, Road Authority or privately.
### **Constraints:**
* If maintenanceResponsibility = "Maintainable At Public Expense" then maintenanceAuthority will be populated.
* If partialRefernce = true then NetworkReferenceLocation shall be expressed.
### id
Unique identifier.
* **Attribute name**: gml\_id (GML), unique\_id (GeoPackage)
* **Type**: CharacterString
* **Size**: 17
* **Multiplicity**: \[1]
### identifier
Uniform Resource Identifier.
* **Attribute name**: identifier (GML), identifier (GeoPackage)
* **Type**: CharacterString
* **Size**: 35
* **Multiplicity**: \[1]
### inspireId
External object identifier of the spatial object.
* **Attribute name**: inspireId
* **Type**: Identifier
* **Multiplicity**: \[0..1]
### beginLifespanVersion
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)
* **Type**: DateTime
* **Multiplicity**: \[1]
### networkRef
Spatial reference of the network-related property.
* **Attribute name**: networkRef\_title (GML), network\_ref\_title (GeoPackage)
* **Type**: NetworkReference
* **Multiplicity**: \[1..\*]
### validFrom
The time when the transport property 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)
* **Type**: DateTime
* **Multiplicity**: \[1]
### maintenanceResponsibility
Indication of whether the highway is maintainable at public expense.
* **Attribute name**: maintenanceResponsibility (GML), maintenance\_responsibility (GeoPackage)
* **Type**: [MaintenanceValue](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-code-lists/maintenancevalue.md)
* **Size**: 44
* **Multiplicity**: \[1]
### maintenanceAuthority
Authority responsible for maintenance of the highway. Note: When maintenanceResponsibility = ‘Not Maintained at Public Expense’ the maintenanceAuthority will be null.
* **Attribute name**: maintenanceAuthority (GML), maintenance\_authority (GeoPackage)
* **Type**: ResponsibleAuthority
* **Multiplicity**: \[0..1]
### partialReference
Flag to indicate that the maintenance feature partially references a Street.
* **Attribute name**: partialReference (GML), partial\_reference (GeoPackage)
* **Type**: Boolean
* **Size**: 5
* **Multiplicity**: \[1]
### highwayAuthority
The authority which the highway resides in. Note: When the maintenanceAuthority is Highways England then highwayAuthority will be set to Highways England. When maintenanceResponsibility = ‘Not Maintained at Public Expense’ then this is the authority the works operator must contact when applying to carry out works on this street.
* **Attribute name**: highwayAuthority (GML), highway\_authority (GeoPackage)
* **Type**: ResponsibleAuthority
* **Multiplicity**: \[1]
### reasonForChange
The reason for a change made to a feature.
* **Attribute name**: reasonForChange (GML), reason\_for\_change (GeoPackage)
* **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]
---
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