OS MasterMap Highways Network integrates Ordnance Survey's detailed road and path information with the authoritative sources of the National Street Gazetteer (NSG), the Trunk Road Street Gazetteer (TRSG) and the Scottish Street Gazetteer (SSG). These sources contain the definitive information provided by the Local and National Roads and Highways Authorities.
To bring this information together, where possible the geometry of streets captured by a Roads or Highway Authority is spatially matched to the geometry of OS RoadLinks and PathLinks. Where this match is successful, the Ordnance Survey geometry is the base geometry used for the Highways Network, enabling the amalgamation of the NSG, SSG and TRSG with Ordnance Survey data. Where spatial matching cannot match the geometry captured by the Roads or Highway Authority to OS geometry, the Roads or Highway Authority geometry is used as the source geometry to represent the extent of the Street, ensuring that all USRNs and associated data provided are included in the product.
Additionally, OS MasterMap Highways Network is enriched with third-party information on speed data which is connected to the Ordnance Survey road network and will provide detailed information on average speed and speed limits across Great Britain.
The Roads product provides a topologically structured link and node representation of the road network and gives connectivity across Great Britain through Ferry features. It provides information on names associated with the road network, being either the legal definitive view of a road name or the plated road name, plus road numbering, junction names and junction numbers. In addition to naming information, the product also provides information on road classification, road function, primary routes and road node classification.
The Routing and Asset Management Information product provides the same functionality as the Roads product, with additional information on both managing the road as an asset and routing information, which aids navigation. The routing and asset management information integrates data from Ordnance Survey's large-scale information and the Additional Street Data held within the NSG and SSG. The routing information covers such aspects as vehicle restrictions, covering access, manoeuvres, and physical characteristics. The asset management information, on the other hand, provides details on the authority responsible for maintaining a road, how a road should be restored following street works and if there are any unusual conditions that the local highway authority have associated with a road.
New OS MasterMap Highways Network With Speed Data contracts cannot be entered into after 29 March 2023. Supply of product updates to customers with existing contracts continues until March 2024.
Average speed and indicative speed limits are now available to access directly from the OS National Geographic Database (OS NGD) Transport Theme. These datasets are available under the PSGA and make it easier to analyse travel times and provide more accurate insight for safety and infrastructure policy decisions.
The Speed data is made available alongside the OS MasterMap Highways Network – Routing and Asset Management Information (RAMI) product and is supplied in three separate products which will provide Average Speed, Speed Limits and the combined version of both Average Speed and Speed Limits.
OS MasterMap Highways Network with Routing and Asset Management Information and Average Speed will provide detailed historical speed information on the average speed travelled for the entire road network in Great Britain. The average speed is provided for each road link and for six distinct times of each day, in both directions of travel. This dataset is based on a year’s worth of information and will aid in calculating congestion and drive times, routing optimisation and planning.
OS MasterMap Highways Network with Routing and Asset Management Information and Speed Limits will provide the speed limit for each road link in Great Britain based on road traffic signs. This dataset will enable you to determine speed restrictions on the road, optimise routing and calculate congestion and drive times.
Both Average Speed and Speed Limits data are linked to the corresponding OS MasterMap Highways Network Road Link feature to which it belongs, identified by the Road Link topographic identifier (TOID).
The Paths product provides a topologically structured link and node representation of the pedestrian path and ferry network throughout Great Britain. The path network will provide connectivity between the road network but will not provide a route which can be inferred from the road network. Instead, the path network can be connected to the road network within the Roads or Routing and Asset Management Information products. The Paths product provides information on names associated with the path network, the path function and its surface type. In addition to the network information, the product also provides asset management information which identifies the authority responsible for maintaining the path, how the path should be restored following street works and if there are any unusual conditions that the local highways or roads authority have associated to the path.
