# OS MasterMap Highways Network – Routing and Asset Management Information Documentation

OS MasterMap Highways Network – Routing and Asset Management Information (RAMI) integrates data from Ordnance Survey's large-scale road and path data with additional street data held within the National Street Gazetteer (NSG), the Trunk Road Street Gazetteer (TRSG) and the Scottish Street Gazetteer (SSG). The routing information covers such aspects as vehicle restrictions, covering access, manoeuvres, and physical characteristics. The asset management information provides details on the authority responsible for maintaining a road, how a road should be restored following street works and if there are any unusual conditions that the local highway authority have associated with a road.

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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%2FtloHQRBZOPJCGGXTm4KO%2Fimage.png?alt=media&#x26;token=cefb94e5-ba5d-405b-a6a0-4ecfb1c1e589" alt="OS MasterMap routing data showing two roads highlighted on a map."><figcaption><p>OS MasterMap routing data.</p></figcaption></figure>

For vehicle routing and navigation software providers, this data gives you all you need to get your users safely to their destinations: turn, height, weight and width restrictions – and even bollards and traffic calming.

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**Comprehensive and authoritative**

OS MasterMap Highways Network – RAMI includes our highly accurate road network geometry and associated routing restriction information for detailed route planning and network analysis.

**Enables improved planning**

Our asset management information allows highways teams to improve planning schemes in the office, avoiding unnecessary site visits. It can also identify potentially difficult locations, so you can organise required permits in good time.

**One instant view**

All the details at your fingertips. If a water leak is reported, use the data to find the property, street and nearest hydrant and assess impact on nearby properties, while determining the risk to other assets.

**Detailed turn information**

Go beyond just the restrictions with detailed information about narrow roads and pinch points. Join up your organisation's common reference to roads and help make informed decisions around the road quickly and effectively.
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OS MasterMap Highways Network – RAMI can be used for:

* A source for legal road identifications
* Costings or benefits of road policies
* Calculating funding allocations
* Policy making and asset management
* Journey planning, routing and navigation
* Emergency Service planning
* Transport planning
* Enforcement regulation
* Traffic statistics
* Delivery
* Waste management
* Planned works
* Projects on the resilience of infrastructure
* Lane rental schemes
* Smart cities
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* **Access:** Download via the [OS Data Hub](https://osdatahub.os.uk/)
* **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
* **Ordering area:** All of Great Britain or 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 – RAMI product page on the OS website](https://www.ordnancesurvey.co.uk/products/os-mastermap-highways-network-routing-and-asset-management) 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 – RAMI 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/HNRRAM). The sample data is available in GML 3.2 format and covers one area (Exeter).

### Visualise OS MasterMap Highways Network – RAMI 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><h4>OS MasterMap Highways Network Product Family</h4></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 – RAMI 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%2FRv6NhRfLGcjBPJVkUtWC%2FHighways-Network-RAMI-3.png?alt=media&#x26;token=73c44119-3ed2-48a1-94c6-95a268cd123f">Highways-Network-RAMI-3.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><h4>Overview</h4></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 – RAMI 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%2FWYIjaqHspeZ7YXoeo8Qf%2FHighways-Network-RAMI-1.png?alt=media&#x26;token=06831a83-d5cb-4d59-844f-9d4411f82959">Highways-Network-RAMI-1.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><h4>Getting Started Guide</h4></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 – RAMI 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%2FKbVMddWRtVTyzubOXroL%2FHighways-Network-RAMI-4.png?alt=media&#x26;token=59aa11d4-cf3d-434a-a7d7-28c0701bc054">Highways-Network-RAMI-4.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><h4>Technical Specification</h4></td><td>The technical specification provides detailed technical information about OS MasterMap Highways Network – RAMI within your environment. 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 – RAMI 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%2FFzloEHICqJqYFlV5RMlR%2FHighways-Network-RAMI-5.png?alt=media&#x26;token=70fce16c-e88a-49e9-b77f-0953429f1d5c">Highways-Network-RAMI-5.png</a></td><td><a href="os-mastermap-highways-network-routing-and-asset-management-information/os-mastermap-highways-network-routing-and-asset-management-information-technical-specification">os-mastermap-highways-network-routing-and-asset-management-information-technical-specification</a></td></tr><tr><td><h4>Downloads</h4></td><td>The downloads page provides links and resources to support the application of OS MasterMap Highways Network – RAMI within your environment.</td><td></td><td></td><td><a href="https://docs.os.uk/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/networks/os-mastermap-highways-network-core-principles/os-mastermap-highways-network-downloads">https://docs.os.uk/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/networks/os-mastermap-highways-network-core-principles/os-mastermap-highways-network-downloads</a></td></tr><tr><td><h4>Ordnance Survey Website</h4></td><td>View OS MasterMap Highways Network – RAMI 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-routing-and-asset-management">https://www.ordnancesurvey.co.uk/products/os-mastermap-highways-network-routing-and-asset-management</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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