GISuser.com / Scottish Street Gazetteer data added to OS MasterMap Highways Network and OS Open USRN for first time Scottish Street Gazetteer data added to OS MasterMap Highways Network and OS Open USRN for first time March 4, 2021 By Editor Authoritative and consistent road network dataset for Scotland and rest of Great Britain available in one place. Scottish Street Gazetteer data added to OS MasterMap Highways NetworkOS, Life has been made simpler and easier for local authorities and others in the public and private sector. A collaboration between Ordnance Survey, the Geospatial Commission, Scottish Government and Scotland’s Improvement Service, enabled by the Public Sector Geospatial Agreement (PSGA), has integrated Scottish Street Gazetteer data into both OS MasterMap Highways Network and OS Open USRN (Unique Street Reference Number) products.