OS MasterMap Highways Network

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 and urban paths.


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.

Knowing who manages a road and what’s on it – such as road markings and bus stops – is key for utilities. OS MasterMap Highways helps you route traffic more efficiently and minimise public disruption.

In the public sector, a common highways dataset means better planning, easier data-sharing and more coordination. So when major accidents happen, you can organise diversions and emergency carriageway repairs faster.

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Comprehensive and definitive

OS MasterMap Highways Network includes our road network geometry and road routing information. It also features the National Street Gazetteer; the Local Highways Authorities road name, numbering and ownership; and the Trunk Road Street Gazetteer.

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Linking streets to homes and infrastructure

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

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Sweat your assets

Since OS MasterMap Highways Network dovetails with OS MasterMap Topography layer, you’ll understand precisely how roads, land and buildings exist together. This helps you make efficiency gains through insights into how capital assets can be better managed.

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Driving navigation, today and tomorrow

Thanks to the full road geometry and connectivity you’ll find in OS MasterMap Highways Network, it’s ideal for use in routing software solutions and sat-nav devices; it also underpins the telematics technology needed by driverless vehicles.

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Simply designed to work

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

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Sign up for the evaluation

The data isn't yet on sale, so please sign up to evaluate the data:


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), Turn Restrictions, Access Restrictions, Maintenance Responsibility, Reinstatement Information, Height Weight Width and Length Restrictions.




Great Britain

OS MasterMap Highways Network support ›


How is this data supplied and what do I need to use it?

OS MasterMap Highways Network goes on sale in October 2016. In the meantime, you can sign up to download evaluation data as either:

a PSMA or OSMA member; or

a Licensed Partner or commercial customer.

You'll need geographic information system (GIS) software to use it.

Is it included in the PSMA?

We're working with Department for Business Innovation and Skills to get this included in the Public Sector Mapping Agreement (PSMA). However, evaluation data is being made available to the all PSMA members in line with the contract we've signed with Department for Transport.

How is routing information represented?

The restriction information is not applied to the base network, but is referenced. This allows the range of information collected to be extended in the future and minimises the impact on customers not concerned with routing information. The main categories of restriction information captured are as follows:

  • One way
  • No entry
  • Access restrictions
  • Height restrictions
  • Turn restrictions
  • Mandatory turns

To whom the restrictions apply and any time constraints are also captured.

What's happening to OS MasterMap ITN Layer?

We intend to withdraw this product at a later date, once OS MasterMap Highways Network is established in the market. In due course, we'll issue a withdrawal notice for ITN.

See all FAQs for OS MasterMap Highways Network ›


OS MasterMap Highways Network is available under the following Licences:

Free trial

You can license this data free to evaluate it for your internal business use or to develop products and services prior to commercialisation.

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.

Collective mapping agreements

These products are available to members of public sector organisations under the following agreements:

Find out more in our Public sector licensing guide ›

This product is available under the:

  • Media Licence. We encourage the use of OS maps in the media – TV, films, print and online. Sign up free to give your consumers valuable context via an authoritative map.
  • Publishing licence. This is suitable for one-off publishing of maps in publications, on merchandising and websites.
View all licences ›

Case studies