> 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/march-2025.md).

# March 2025

This release note provides information about the March 2025 release of OS MasterMap Highways Network.

## 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 February 2025 |
| Improvement Service Streets Data   | 04 February 2025 |
| OS Road, Path, and Routing Content | 05 February 2025 |

## OS MasterMap Highways Network feature counts

<table><thead><tr><th width="374">Roads’ Feature</th><th>Count</th></tr></thead><tbody><tr><td>AccessRestriction</td><td>35 503</td></tr><tr><td>FerryLink</td><td>102</td></tr><tr><td>FerryNode</td><td>132</td></tr><tr><td>FerryTerminal</td><td>132</td></tr><tr><td>Hazard</td><td>41 956</td></tr><tr><td>HighwayDedication</td><td>3 600 954</td></tr><tr><td>Maintenance</td><td>1 317 157</td></tr><tr><td>Reinstatement</td><td>1 533 480</td></tr><tr><td>RestrictionForVehicles</td><td>12 098</td></tr><tr><td>Road</td><td>853 909</td></tr><tr><td>RoadLink</td><td>8 502 282</td></tr><tr><td>RoadNode</td><td>7 533 748</td></tr><tr><td>RoadJunction</td><td>6 883</td></tr><tr><td>SpecialDesignation</td><td>788 332</td></tr><tr><td>Street</td><td>1 489 946</td></tr><tr><td>Structure</td><td>1 383 383</td></tr><tr><td>TurnRestriction</td><td>1 047 309</td></tr></tbody></table>

| Paths’ Feature     | Count     |
| ------------------ | --------- |
| ConnectingLink     | 1 996 100 |
| ConnectingNode     | 1 853 259 |
| FerryLink          | 112       |
| FerryNode          | 200       |
| FerryTerminal      | 200       |
| HighwayDedication  | 403 968   |
| Maintenance        | 204 817   |
| Path               | 25 341    |
| PathLink           | 3 331 136 |
| PathNode           | 3 933 137 |
| Reinstatement      | 210 104   |
| SpecialDesignation | 12 797    |
| Street             | 256 637   |

## Product updates

As communicated in the previous release note, known data issues will no longer be outlined in the release note for this product. Details of live and resolved data issues will instead be published on the [OS MasterMap Highways Network Known Data Issues page](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-known-data-issues.md). The release note for this product will publish feature counts and source data dates only.

## Next release

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


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