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OS Mastermap Topography Layer

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OS Mastermap Topography Layer PRODUCT GROUP /DEPARTMENT OS MasterMap Topography Layer Product guide OS MasterMap Topography Layer Vn.n © OS 2017 Page 1 of 45 Responsibility for this document The Product Strategy and Management team is responsible for the content of this document. Change history Version Date Summary of change 2.0 08/2017 First issue 2.1 05/2018 Reintroduced information table on page 29 2.2 07/2018 Clarification on capture rules for private property on page 20 The impacts of the project, described in this document have been assessed and where appropriate, changed, in accordance with the requirements set out in Ordnance Survey's Equality scheme. As a requirement of Ordnance Survey’s Equality scheme all of our processes and activities, including all policies, projects and proposals, must be screened to assess any impact with regard to race, disability and gender equality. Please ensure that this document has been equality screened and include the above statement, only when this has been completed, with the brackets removed. You must notify your Equality Advocate who will ensure that all necessary records are updated. Your Equality Advocate can also help you with the screening process, if required. Trademarks Ordnance Survey is a registered trademark and OS logos are a trademark of OS, Britain’s mapping agency. All other trademarks are acknowledged. OS MasterMap Topography Layer Product Guide v2 08/2017 © Crown copyright Page 2 of 45 Contents Section Page no Contents OS MasterMap Topography Layer .......................................................................................................... 1 Preface .................................................................................................................................................... 5 Contact details ................................................................................................................................... 5 Use of the product ............................................................................................................................. 5 Purpose and disclaimer ..................................................................................................................... 5 Copyright in this guide ...................................................................................................................... 6 Data copyright and other intellectual property rights ..................................................................... 6 Trademarks ....................................................................................................................................... 6 Back-up provision of the product ..................................................................................................... 7 Using this guide ................................................................................................................................. 7 Chapter 1 Introduction to OS MasterMap Topography Layer .......................................................... 8 Introduction ....................................................................................................................................... 8 System requirements ........................................................................................................................ 9 The data model ................................................................................................................................ 10 Themes ..................................................................................................................................... 10 Features ..................................................................................................................................... 10 Attributes ..................................................................................................................................... 11 Chapter 2 Introduction to OS MasterMap Topography Layer ........................................................ 12 Purpose and Application ................................................................................................................. 13 Applications ..................................................................................................................................... 15 Chapter 3 OS MasterMap Topography Layer themes ..................................................................... 17 Administrative boundaries .............................................................................................................. 17 Parliamentary Boundaries ......................................................................................................... 18 Local Government Boundaries .................................................................................................. 18 Application of Precedence ......................................................................................................... 18 Buildings ..................................................................................................................................... 19 Heritage and Antiquities.................................................................................................................. 20 Land ..................................................................................................................................... 20 Rail ..................................................................................................................................... 22 Roads, Tracks, and Paths ................................................................................................................ 23 Roads ....................................................................................................................... 23 Tracks ....................................................................................................................... 23 Paths ....................................................................................................................... 23 Made paths ....................................................................................................................... 23 Unmade paths ....................................................................................................................... 23 Structures ..................................................................................................................................... 24 Terrain and height ........................................................................................................................... 26 Triangulation stations ................................................................................................................ 26 Spot height ....................................................................................................................... 26 Water ..................................................................................................................................... 26 Theme rules ..................................................................................................................................... 28 Chapter 4 OS MasterMap supply ..................................................................................................... 31 Initial and COU supply ..................................................................................................................... 31 Updating data holdings ................................................................................................................... 31 Managed Great Britain (GB) Sets ............................................................................................... 32 Supply options ................................................................................................................................. 32 Chunk files ....................................................................................................................... 32 OS MasterMap Topography Layer Product Guide v2 08/2017 © Crown copyright Page 3 of 45 Feature validation dataset (FVDS) ............................................................................................. 35 GML summary file ....................................................................................................................... 35 Chapter 5 Change management and data association .................................................................. 36 Change management ...................................................................................................................... 36 Archiving the OS MasterMap data holding ................................................................................ 37 Annexe A Administrative boundary alignments ........................................................................... 38 Annexe B Associating data to OS MasterMap features .................................................................. 40 Annexe C Metadata ......................................................................................................................... 42 Annexe D Descriptive Terms........................................................................................................... 43 Annexe E BAU change value descriptions ...................................................................................... 44 Annexe F Product and service performance report form .................................................................... 45 OS MasterMap Topography Layer Product
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