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OS MasterMap Highways Network - Roads

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


A routable road network dataset

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.

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) enables linking and sharing of data against the road and street networks.

Future proofed

Get 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 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.

How to get this product

Case studies

Using OS MasterMap Highways Network - Roads

Using OS MasterMap Highways Network - Roads

Beacon Dodsworth used Ordnance Survey data to create a mapping tool for Transport Focus to help assess user satisfaction across the Strategic Road Network

Read the full case study

Technical specification

Key FeaturesWhat this product offers

GML 3.2.1

Data structure

Vector – topologically-structured link and node network.


Road Classification, Road Name, Unique Street Reference Number (USRN) and much more.




Great Britain

Support documentation

Getting started guide (PDF)

Technical specification (PDF)