On an Ordnance Survey map, what does ‘PA’ represent?
Ordnance Survey 450 million TOIDs. As of 2005, "OS MasterMap" was at version 6; 2010's version 8 includes provision for Urban Paths (an extension of the "integrated transport network" layer) and pre-build address layer. All these versions have a similar GML schema. For several decades Ordnance Survey has had a research department that is active in several areas of geographical information science, including: Ordnance Survey actively supports the academic research community through its external research and university liaison team. The research department actively supports MSc and PhD students as well as engaging in collaborative research. Most Ordnance Survey products are available to
Ordnance Survey International to its primary map making role the agency was responsible for: Reference. Ordnance Survey International The Ordnance Survey International and its predecessors built an archive of air photography, map and survey records for the United Kingdom from 1946 to 1999. The Ordnance Survey International Collection (formerly the Ordnance Survey International Library) held mapping records that were acquired outside the UK. The agency was closed in 2001. In 1946 the "Directorate of Colonial Surveys" (DCS) was established by the Colonial Office to provide a central survey and mapping organisation for British colonies and protectorates. In 1957, with the imminent decolonisation of