> 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/structured-data-types.md).
# Structured data types
This section describes the structured data types which make up OS MasterMap Highways Network – Paths:
* [Identifier](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/identifier.md)
* [CycleFacilityType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/cyclefacilitytype.md)
* [ElevationGainType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/elevationgaintype.md)
* [OperationalStateType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/operationalstatetype.md)
* [DesignatedNameType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/designatednametype.md)
* [ResponsibleAuthority](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/responsibleauthority.md)
* [TemporalPropertyType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/temporalpropertytype.md)
* [DateRangeType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/daterangetype.md)
* [DayPropertyType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/daypropertytype.md)
* [TimePropertyType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/timepropertytype.md)
* [TimeRangeType](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/structured-data-types/timerangetype.md)
The attributes associated with each data type are listed on the individual structured data type pages.
SpecialDesignations have a property of ‘timeInterval’ which has the type of ‘TemporalPropertyType’. The below table describes this data type and shows how it is made up. The hierarchical structure of Temporal Properties is shown on the [Temporal Properties page](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-paths/os-mastermap-highways-network-paths-technical-specification/data-types/temporal-properties.md).
Temporal property structure
## Structured data type attribute information
The following information will be provided against each structured data type.
### **Name and Definition**
The name of the attribute and what it is describing.
### **Data type**
The nature of the attribute, for example a numeric value or a code list value.
### **Size**
The length of the attribute provided (optional).
### **Multiplicity**
Describes how many times this element is expected to be populated in the data. An attribute may be optional or mandatory within the product. These are denoted by:
* ‘1’ – there must be a value.
* ‘0..1’ – population is optional but a maximum of one attribute will be returned These values may be used in combination.
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