Skip to content

OS MasterMap Highways Network - Roads

OS MasterMap® Highways Network is the most complete, detailed and accurate navigable road network dataset for Great Britain. It records the dimensions and accessibility of roads.

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.

A common highways dataset means a common understanding of where incidents are happening, and what's happening in the surrounding area.

OS MasterMap Highways Network - Roads will give you detailed information about planned roads and roads under construction helping you to better understand the roads of today and the roads of tomorrow.

Comprehensive and authoritative

Comprehensive and authoritative

OS MasterMap Highways Network - Roads includes our highly accurate road network geometry. It 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.

Linking streets to home and infrastructure

Linking streets to home and infrastructure

Thanks to the Unique Street Reference Number (USRN), this data links to AddressBase®. So you can search for or navigate to an address, improve consultation about roadworks, and identify installations like electricity substations.

Great data, supplied simply

Great data, supplied simply

While it contains highly-detailed road geometry and tons of essential information, OS MasterMap Highways Network is designed for simplicity. It dovetails with OS MasterMap Topography Layer, while replacing a number of different network datasets and follows well-known geospatial and technical standards.

Working together

Working together

OS MasterMap Highways Network - Roads is designed to work with OS MasterMap Topography Layer, as seen here, and the AddressBase family, joining together the best from OS products. Highways Network focuses on joining the topographic identifiers (TOIDs) between these products to enable various applications, from doorstep deliveries to managing streetworks and capital assets more effectively.


Technical specification
Key FeaturesWhat this product offers
FormatGML 3.2.1
Data structureVector – topologically-structured link and node network.
AttributesRoad Classification, Road Name, Unique Street Reference Number (USRN) and much more.
SupplyDVD or Download You'll need geographic information system (GIS) software to use the data
CoverageGreat Britain


Roads is available under the following licences:

Explore our data

You’re welcome to try out this data for free under our Data Exploration Licence.

Internal business use

When using OS data in your own business, you need our Framework Contract (Direct Customers) together with a data contract.

Creating products or services

To use this data commercially in your own products and services, or to distribute it, you will need to sign up to our Framework Contract (Partners) and a relevant defined use contract. This will vary depending on what you’re going to do with the data.

How to get this product

Sample data

Give it a try

Download a small area of OS MasterMap Highways Roads sample data.

Or you can apply for a Data Exploration Licence to try out the real thing.