# OS MasterMap Highways Network Known Data Issues

## Live known data issues

<table data-full-width="true"><thead><tr><th>Data Issue Name</th><th>Data Issue Description</th><th>Product(s) Affected by the Issue</th></tr></thead><tbody><tr><td>Overlapping Path Links</td><td><p>There are 42 instances of overlapping Path Links. </p><p></p><p>This issue is being investigated.</p></td><td>OS MasterMap Highways Network – Paths</td></tr><tr><td>Short Network Links</td><td><p>There is 1 Connecting Link that is less than 1m in length. </p><p></p><p>This issue is being investigated.</p></td><td>OS MasterMap Highways Network – Paths</td></tr><tr><td>Isolated Road Links</td><td><p>A total of 198 non-track Road Links are disconnected from the main network or not properly connected at a node. These are not on major parts of the network.</p><p></p><p>This issue is being investigated.</p></td><td>OS MasterMap Highways Network – Roads and OS MasterMap Highways Network – RAMI</td></tr></tbody></table>

## Resolved data issues

<table data-full-width="true"><thead><tr><th>Data Issue Name</th><th>Data Issue Description</th><th>Product</th><th>Resolution Date</th></tr></thead><tbody><tr><td>Streets without maintenance records</td><td><p>There are 8 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.</p><p></p><p>This issue is being investigated by GeoPlace and Improvement Service.</p></td><td>OS MasterMap Highways Network – Roads and OS MasterMap Highways Network – RAMI</td><td>February 2026</td></tr></tbody></table>

{% hint style="info" %}
To report an issue not currently listed here, please visit the ['Contact us' page on the OS website](https://www.ordnancesurvey.co.uk/contact-us/business-government/use-os-data).
{% endhint %}


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