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For the complete documentation index, see llms.txt. This page is also available as Markdown.

Transport Network Portfolio

This page provides an overview of the OS downloadable products in the Transport Network Portfolio.

Transport network products

This portfolio provides detailed network data for transport routes across Great Britain. It supports routing, asset management and transport planning, with topologically structured datasets and authoritative identifiers.

The following downloadable products are available within the Transport Network Portfolio:

Example image showing OS Detailed Path Network product data over a background map.

OS Detailed Path Network

A fully connected, heighted path network covering Britain’s National Parks to allow users to create off-road navigation websites and apps.

N.B. This product will become End of Life on 30 September 2026 and will be withdrawn.

Example image showing OS MasterMap Highways Network – Paths product data over a background map of an urban area.

OS MasterMap Highways Network – Paths

A path network dataset for Great Britain showing who is responsible for all the footpaths through towns and cities in Great Britain.

Example image showing OS MasterMap Highways Network – Roads product data over a background map of an urban area.

OS MasterMap Highways Network – Roads

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

Example image showing OS MasterMap Highways Network – RAMI product data over a background map of an urban area.

OS MasterMap Highways Network – Routing and Asset Management Information (RAMI)

Routing data from Ordnance Survey's large-scale road and path data integrated with data from the National Street Gazetteer (NSG), the Trunk Road Street Gazetteer (TRSG) and the Scottish Street Gazetteer (SSG).

Example image showing OS Multi-Modal Routing Network product data over a background map of an urban area.

OS Multi-Modal Routing Network (OS MRN)

A fully connected routable network containing  multi-modal connectivity between road, rail,  path and ferry networks for the routing of people and goods.

Example image showing OS Open Roads product data over a background map of Great Britain.

OS Open Roads

An open dataset providing a high-level digital representation of Great Britain's road network.

Example image showing OS Open USRN product data over a background map of an urban area.

OS Open USRN

An open dataset containing all Unique Street Reference Numbers (USRNs) from OS MasterMap Highways Network.

Example image showing OS Open Linked Identifiers product data over a background map of an urban area.

OS Open Linked Identifiers

An open dataset of cross-referenced identifiers detailing relationships between Unique Property Reference Numbers (UPRNs), Unique Street Reference Numbers (USRNs) and Topographic Identifiers (TOIDs).

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