Transport Network

The OS NGD Transport Network Collection provides a topologically structured link and node representation of Great Britain's road, ferry, rail and path networks. This collection provides information on road classification; road and path function; primary routes; road node classification; names associated with the road and path networks; path surface type, and connectivity between the road network and the ferry, rail, and path networks.

In September 2023, a rail network was added to the OS NGD Transport Network Collection with the addition of three feature types: Railway Link, Railway Link Set, and Railway Node. Furthermore, the presence of pavements on the road network was supplied against Road Link features, and the Pavement Link Feature Type was also added to the collection.

From March 2024, tram track attribution indicating the presence of tram tracks on a road has been supplied against Road Link features, and the Tram On Road Feature Type was added to the collection.

From March 2025, street light attribution indicating street light coverage on a road or path has been supplied against Road Link and Path Link features. (A new Street Light Feature Type was also added to the OS NGD Transport Features Collection at this time.) 

Images showing the feature types available in the collection are shown below:

Example image showing what a selection of the feature types that comprise the routable network in the OS NGD Transport Network Collection look like in the data. A background map has been included to provide context.

Example image showing what a selection of the rail network feature types in the OS NGD Transport Network Collection look like in the data. A background map has been included to provide context.

Collection applications

The OS NGD Transport Network Collection allows you to:

• Ensure your transport data is always up to date with monthly updates.

• Identify the authority responsible for naming, numbering and maintaining a street.

• View ferry routes which start and end in Great Britain.

• Create statistics for evidence-based policy making, such as school transport allocation, funding distribution and meeting sustainable transport policies.

• Visualise the connectivity between the road network and path network.

• Examine the surface type, function and names associated with paths.

• Visualise a simplified topographic representation of rail networks across Great Britain, thereby providing better understanding of connectivity for passengers and freight.

• Identify Road Links which have pavements associated with them and visualise the extent of pavements on the road network.

Example images showing what a selection of the Pavement Link features in the OS NGD Transport Network Collection look like in the data. The images indicate the presence of pavement on the left and right side of roads, respectively. Background maps have been included in both images to provide context.

• Identify Road Links which have a tram track on them and visualise the extent of tram tracks on the road network.

• Identify and visualise how well-lit Road Links and Paths Links are from Street Light coverage to support the identification and planning of safe routes for active travel (such as home-to-school routing).

Example visualisation showing street light coverage on Path Links and Road Links to show how well-lit they are (using the Presence of Street Light Coverage attribute). A background map has been included to provide context.

Key elements

• Monthly updates to data.

• Plug and play – the data is simple and quick to implement as you don't need to pre-process it before you use it.

• Rich attribution ensures the data is straightforward to navigate and query.

• Simplified attribute naming helps make names easier to understand.

• Persistent unique identifiers with lifecycle information.

• New cross-references make it easy for you to link data in this collection with data from other OS NGD collections.

• Geometry available for every feature.

Coverage

Great Britain.

Default coordinate reference systems

British National Grid + ODN Height (EPSG: 7405) for most feature types in the collection; British National Grid (EPSG: 27700) for the Ferry Terminal, Path, Road, Road Junction, Street and Pavement Link Feature Types.

Temporal filtering

The earliest date on which you can request a one-off snapshot of a date in the past for data in this collection is noted at the top of the individual feature type pages.

Supply formats

GeoPackage, CSV (comma-separated values), GeoJSON or vector tiles (the latter format is only available for the following feature types in this collection: Rail, Railway Link, Railway Link Set, Railway Node, Road Track Or Path, Road Line, Path, Path Link, and Road)

Supply mechanism

Accessed through the OS Data Hub via:

• OS Select+Build

• OS NGD API – Features

• OS NGD API – Tiles (only available for the following feature types: Railway Link, Railway Link Set, Railway Node, Path, Path Link, and Road)

Using our data

• Included in the Public Sector Geospatial Agreement (PSGA) – therefore, it's free at point of use for Public Sector organisations.

• Available to OS Partners for commercial resell in your solutions.

Useful links

An introductory guide to the OS NGD Transport Network is available on our More than Maps site. This guide details the layers, formats, and attribution available for OS NGD Transport network data.