# OS MasterMap Highways Network – Roads Documentation

A navigable road network dataset with detailed information about planned roads and roads under construction for Great Britain.

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**This product is updated monthly.**
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<figure><img src="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FkjyMeI1vXkCntSQLDTlc%2Fimage.png?alt=media&#x26;token=fa95fbb4-3a91-453b-96d1-c7bf3b3498b7" alt="OS MasterMap Highways Network – Roads data showing a road network around a city on a map."><figcaption><p>OS MasterMap Highways Network – Roads data</p></figcaption></figure>

For all highways stakeholders, OS MasterMap Highways Network is data you can trust. It draws on authoritative sources and helps underpin the common operational picture that leads to faster, better decisions.

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**Comprehensive and authoritative**

OS MasterMap Highways Network – Roads combines high-quality, accurately surveyed data with features from the National Street Gazetteer; the Local Highways Authorities road name, numbering and maintenance; the Trunk Road Street Gazetteer collected by Highways England and Welsh Government; and the Scottish Street Gazetteer containing information from Scottish local authorities and Transport Scotland.

**Unified highways data**

A common highways dataset means a common understanding of the existing network, enabling better decision and policy making.

**Unique identifiers**

Highly detailed road geometry supplied with essential unique identifiers, including the Unique Street Reference Numbers (USRNs) and Topographic Identifiers (TOIDs), which enable linking and sharing of data against the road and street networks.

**Future-proofed data**

Get detailed information about planned roads and roads under construction, helping you to better understand the roads of today and the roads of tomorrow.
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{% tab title="Use Cases" %}
OS MasterMap Highways Network – Roads can be used:

* As a source for legal road identifications
* To estimate costs or benefits of road policies
* For calculating efficient funding allocations and for evidence-based policy making, including:
  * Managing policies
  * Producing statistics
  * Allocating funding
  * Supporting legislation
* Asset management
* Journey planning, routing and navigation
* Emergency service and civil contingency planning
* Enforcement regulation
* Transport planning and traffic statistics
* School allocation
* Smart cities
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{% tab title="Summary" %}

* **Access**: Download
* **Category: Networks**
* **Data theme**: Transport
* **Data structure**: Vector – Topologically structured link and node network
* **Coverage**: Great Britain
* **Scale**: 1:1 250 to 1:10 000
* **Format**: GML 3.2.1, GeoPackage, vector tiles
* **Ordering area**: All of Great Britain or a customisable area (user-defined polygon)
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## How to get this product

Access to this product is free for PSGA (Public Sector Geospatial Agreement) Members. You can [check if your organisation is a member of the PSGA on the OS website](https://www.ordnancesurvey.co.uk/customers/public-sector/psga-member-finder).

The [OS MasterMap Highways Network – Roads product page on the OS website](https://www.ordnancesurvey.co.uk/products/os-mastermap-highways-network-roads) has advice on how to get the product for businesses, developers, OS Partners and PSGA Members (i.e. government and the public sector).

## Sample data <a href="#sample-data" id="sample-data"></a>

### Download OS MasterMap Highways Network – Roads sample data <a href="#download-os-egs-sample-data" id="download-os-egs-sample-data"></a>

You can download sample data for the product for free from the [OS Data Hub](https://osdatahub.os.uk/data/downloads/sample/HNROAD). The sample data is available in GML 3.2 format and covers one area (Exeter).

### Visualise OS MasterMap Highways Network – Roads sample data online

This product is available to try out free online using one of our three sets of sample data (Exeter, Newport and Inverness) through the OS MasterMap Product Viewer:

<table data-view="cards" data-full-width="false"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>OS MasterMap Product Viewer</strong></td><td>Interactive demonstrator of OS MasterMap Generation data</td><td></td><td data-object-fit="cover" data-alt="Example image showing OS VectorMap Local product data over an urban area."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fuld7V42IKrB8ovpC1JXB%2FVectorMap-Local-1.png?alt=media&#x26;token=cb3e8ae9-d669-4bc9-b7a7-5f479d780447">VectorMap-Local-1.png</a></td><td><a href="https://experience.arcgis.com/experience/20981dabcb14402687dccb437a4a78fb/">https://experience.arcgis.com/experience/20981dabcb14402687dccb437a4a78fb/</a></td></tr></tbody></table>

## Other ways to access this data

OS MasterMap Highways Network data is available through our [OS Features API](https://docs.os.uk/os-apis/accessing-os-apis/os-features-api), providing location-based insights combining topography data with buildings, transport, and water layer data to create detailed datasets with a high degree of accuracy. [Visit the OS API docs site](https://docs.os.uk/os-apis) to unlock programmatic access to rich geospatial data and integrate OS data and services into your applications

Access to OS MasterMap Highways Network data is also available through the [OS NGD Transport Theme](https://docs.os.uk/osngd/data-structure/transport), providing data that is interoperable with other OS NGD themes, improved data structures, and a data schema designed to be simple to use and interrogate. Users may find OS NGD Transport Theme data more accessible and easier to use with databases and GIS software. [Visit the OS NGD docs site](https://docs.os.uk/osngd) to discover how to access the OS NGD and learn what's available to users.

## What's next?

To access additional documentation and resources relating to this product, please refer to the following:

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h3>OS MasterMap Highways Network Product Family</h3></td><td>This page gives context and information about the three products which make up the OS MasterMap Highways Network 'family' of products, giving a high-level summary of each product.</td><td></td><td data-object-fit="cover" data-alt="Example image showing OS MasterMap Highways Network – Roads product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fr2dGHWQN9dfXzMPoP240%2FHighways-Network-1.png?alt=media&#x26;token=fcde17fd-1a8f-4ac0-8f9e-c3f7bcd9c1a2">Highways-Network-1.png</a></td><td><a href="os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-product-family">os-mastermap-highways-network-product-family</a></td></tr><tr><td><h3>Overview</h3></td><td>The overview introduces OS MasterMap Highways Network products and gives context for all users – highlighting key features and potential uses, and listing supply formats, currency, etc.</td><td></td><td data-object-fit="cover" data-alt="Example image showing OS MasterMap Highways Network – Roads product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FEUsZ7INT7jog56bamKzx%2FHighways-Network-2.png?alt=media&#x26;token=65eadf2a-3420-4dc2-b774-2c96834371fe">Highways-Network-2.png</a></td><td><a href="os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-overview">os-mastermap-highways-network-overview</a></td></tr><tr><td><h3>Getting Started Guide</h3></td><td>The getting started guide provides instructions for using OS MasterMap Highways Network in different software applications. Users with limited technical knowledge will be able to follow this guide.</td><td></td><td data-object-fit="cover" data-alt="Example image showing OS MasterMap Highways Network – Roads product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FGS1OUuZjy3pRPZjfMMto%2FHighways-Network-3.png?alt=media&#x26;token=f62cf514-5eca-4092-bf15-159d1b06d353">Highways-Network-3.png</a></td><td><a href="os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-getting-started-guide">os-mastermap-highways-network-getting-started-guide</a></td></tr><tr><td><h3>Technical Specification</h3></td><td>The technical specification provides detailed technical information about OS MasterMap Highways Network – Roads. It is targeted at technical users and software developers.</td><td></td><td data-object-fit="cover" data-alt="Example image showing OS MasterMap Highways Network – Roads product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FMpQy5V7YHD28m6WtKnfn%2FHighways-Network-AddWeb.png?alt=media&#x26;token=c9066ef1-76c1-4199-a693-a31b7007a61a">Highways-Network-AddWeb.png</a></td><td><a href="os-mastermap-highways-network-roads/os-mastermap-highways-network-roads-technical-specification">os-mastermap-highways-network-roads-technical-specification</a></td></tr><tr><td><h3>Downloads</h3></td><td>The downloads page provides links and resources to support the application of OS MasterMap Highways Network – Roads within your environment.</td><td></td><td></td><td><a href="os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-downloads">os-mastermap-highways-network-downloads</a></td></tr><tr><td><h3>Ordnance Survey Website</h3></td><td>View OS MasterMap Highways Network – Roads product information and find out how to get this product on the OS website.</td><td></td><td></td><td><a href="https://www.ordnancesurvey.co.uk/products/os-mastermap-highways-network-roads">https://www.ordnancesurvey.co.uk/products/os-mastermap-highways-network-roads</a></td></tr></tbody></table>

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New users should start with the Overview to gain high-level insight into the product. The Getting Started Guide will help you to begin using product data in different software systems. The Technical Specification contains detailed technical insights.
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