> 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-open-roads/os-open-roads-technical-specification/code-lists-and-enumerations/roadfunctionvalue.md).

# RoadFunctionValue

The RoadLink feature is attributed with a *roadFunction* with a data type of *RoadFunctionValue*. The following table lists the codes which are used to populate this field and gives a description for each code.

## **Code List: RoadFunctionValue**

| Code                         | Description                                                                                                                              |
| ---------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| Motorway                     | A multi-carriageway public road connecting important cities.                                                                             |
| A Road                       | A major road intended to provide large-scale transport links within or between areas.                                                    |
| B Road                       | A road intended to connect different areas and to feed traffic between A roads and smaller roads on the network.                         |
| Minor Road                   | A public road that provides interconnectivity to higher-classified roads or leads to a point of interest.                                |
| Local Road                   | A public road that provides access to land and/or houses, usually named with addresses. Generally, not intended for through traffic.     |
| Local Access Road            | A road intended for the start or end of a journey; it is not intended for through traffic but will be openly accessible.                 |
| Restricted Local Access Road | A road intended for the start or end of a journey; it is not intended for through traffic and will have a restriction on who can use it. |
| Secondary Access Road        | A road that provides alternate/secondary access to property or land; it is not intended for through traffic.                             |


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