> 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-fundamentals/release-notes/december-2024.md).

# December 2024

## Source data currency

The following information relates to the currency of the source data used in the creation of this release of OS MasterMap Highways Network:

| Data source                        | Date             |
| ---------------------------------- | ---------------- |
| GeoPlace Streets Data              | 06 November 2024 |
| Improvement Service Streets Data   | 06 November 2024 |
| OS Road, Path, and Routing Content | 05 November 2024 |

## OS MasterMap Highways Network feature counts

| Roads’ feature         | Count     |
| ---------------------- | --------- |
| AccessRestriction      | 35 309    |
| FerryLink              | 102       |
| FerryNode              | 132       |
| FerryTerminal          | 132       |
| Hazard                 | 41 775    |
| HighwayDedication      | 3 592 466 |
| Maintenance            | 1 313 900 |
| Reinstatement          | 1 530 724 |
| RestrictionForVehicles | 12 051    |
| Road                   | 852 612   |
| RoadLink               | 8 488 807 |
| RoadNode               | 7 521 342 |
| RoadJunction           | 6 826     |
| SpecialDesignation     | 784 375   |
| Street                 | 1 487 076 |
| Structure              | 1 377 672 |
| TurnRestriction        | 1 046 351 |

| Paths’ feature     | Count     |
| ------------------ | --------- |
| ConnectingLink     | 1 994 505 |
| ConnectingNode     | 1 851 931 |
| FerryLink          | 105       |
| FerryNode          | 196       |
| FerryTerminal      | 196       |
| HighwayDedication  | 402 126   |
| Maintenance        | 204 166   |
| Path               | 25 325    |
| PathLink           | 3 307 067 |
| PathNode           | 3 908 790 |
| Reinstatement      | 209 467   |
| SpecialDesignation | 12 792    |
| Street             | 255 384   |

## Data issues

In the December 2024 release of OS MasterMap Highways Network:

* There are 4 instances of overlapping road links.
* There are 115 instances of overlapping path links.
* There are 21 instances where a road link and a path link overlap, representing the same real-world feature (figure below).

<figure><img src="/files/M9I143QnABoQ0XlEoZXM" alt="Example of an overlapping path link and road link."><figcaption><p><em>Example of an overlapping path link and road link.</em></p></figcaption></figure>

* There are 194 road links disconnected from main network or not properly connected at a node; these are not on major parts of the network.
* There are 3 road links which are less than 1m in length.
* There are 290 connecting links which are less than 1m in length.
* There is 1 path link which is less than 1m in length.
* There are 20 features in the Street table which have a street type of either Designated Street Name or Officially Described Street and have no associated maintenance record.

## Product updates

We are carrying out essential improvements to our product creation system. As a result, very small changes may be seen in Road Width values within OS MasterMap Highways Network. We estimate around 1.4 million features to be modified. Therefore, please be aware that the December release of OS MasterMap Highways Network will have a larger COU than usual.

## Next release

The next release of OS MasterMap Highways Network is scheduled for January 2025.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/december-2024.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
