Cadastral Parcels in INSPIRE Lisbon, 27 February 2013 Dominique.laurent@ign.fr
Plan INSPIRE context The modeling approach for theme Cadastral Parcels Implementation of INSPIRE theme Cadastral Parcels
Context
Team members Dominique Laurent (IGN France) André Bernath (Switzerland) Gyula Ivan (NMA Hungary) Tarja Myllymäki (NLS Finland) Amalia Velasco (Cadastre- Spain) Olav Jenssen (NMA - Norway) Peter van Oosterom (TUD/Kadaster Netherlands) Soren Riff Alexandersen (NMCA Denmark) Wim Devos (JRC) Gareth Robson (UK) Facilitator Editor Thematic experts
Team members
General process Constraint Existing data Drivers Use cases User requirements INSPIRE TWG Support Standards Best practices Data specification
As-is analysis Main sources Reference Material : survey conducted by EuroGeograhics PCC working group in 2005 about cadastral parcels in INSPIRE generic information about most countries in Europe a cadastral parcel has 5 main properties Boundaries - identifier - history Geo-referencement - area TWG CP survey members or contact points more detailed information in 15 countries questionnaire launched by TWG CP about the specific issue of raster data => INSPIRE specifications only about vector data
Main use cases Agriculture: Common Agriculture Policy (Land Parcel Identification System) Environment (Soil protection, Water abstraction, Protected sites) Spatial planning Infrastructures, utilities Public land management Public safety (flood management) Socio-economic analysis, other
Influence of LADM (Land Administration Domain Model) LADM was proposed as a new ISO standard by FIG (Fédération Internationale des Géomètres) initiative supported by UN Habitat A wider scope than INSPIRE includes rights and owners, surveying package,.. International standard (not only European) Joint work with LADM Working Group (Reference Material, common members, joint meetings) make INSPIRE model compatible with and extensible by LADM INSPIRE is sub-set of LADM INSPIRE may be more demanding than LADM
Scope Cadastral parcels will be used as locators for geographic information Geographic part Cadastral parcels National cadastral reference Legal part Rights, owners, In the INSPIRE scope Out of the INSPIRE scope To be found in national register
Scope Definition (Directive) Area defined in cadastral registers or equivalent Description (TWG) Single area On Earth surface Under homogeneous property rights and unique ownership Forming a partition as much as possible
Modelling approach for theme Cadastral Parcels
Application schema A very simple common part only one mandatory feature type: cadastral parcels with few attributes
Application schema (common part) One mandatory feature type
Application schema (common part) The parcel geometry must be a GM_Surface (recommended option) or a GM_MultiSurface
Application schema (common part ) Identifier in the (geographic) data base external identifier INSPIRE identifiers must be unique and persistent
Application schema (common part) The identifier in the cadastral register thematic identifier Ex : 63425 AB123 (France)
Application schema (common part) The part of national cadastral reference displayed on maps (e.g. parcel number) Ex : 123 (France)
Application schema (common part) «Voidable» attributes: attributes to be supplied for INSPIRE if available or derivable at reasonable cost
Application schema (common part) Temporal attributes in real life (cadastral register) Temporal attributes in geographic data base
Application schema (common part) The area must me provided in m 2 The reference point may be used to display the label
Application schema A very simple common model only one feature type (cadastral parcels) with few attributes With some standardised options To carry helpful information To fit better with some national specificities
Application schema (standardised options) 3 additional feature types to to fit with national specificities (conditional feature types)
Application schema (standardised options) To fit with national specificities Cadastral zoning (municipality, section, cadastral sheet, ): -To carry metadata -For portrayal
Application schema (standardised options) Use of cadastral zonings for portrayal
Application schema (standardised options) Cadastral boundaries to carry the accuracy (when heterogeneous)
Application schema (standardised options) Basic property units to fit with cadastral system of Nordic countries.
Application schema A very simple common model only one feature type (cadastral parcels) with few attributes With some standardised options To carry helpful information To fit better with some national specificities And with possible extensions On volontary basis Future evolution of CP specifications (if requirements and consensus) LADM may help
Experiences from implementation
Responsibility What to do if several data producers for same themes? This situation rarely occurs for theme CP One single producer Or at least well-defined responsibilities *source: INSPIRE KEN workshop on strategy
Example 1: Lake Constance Presentation during INSPIRE conference 2012 A cross-border experience of data transformation michael.mueller@aed-sicad.de
Example 1: Lake Constance
Example 1: Lake Constance Number of transformation rules varies significantly, according to source data
Example 1: Lake Constance For Cadastral data, transformation rules are relatively simple but there is a huge volume of data to be considered.
Example 2: North Ireland Presentation during last INSPIRE conference Cadastral parcels made INSPIRE-compliant using FME ArcGIS for INSPIRE
Example 3 : Spanish Cadastre Download service for (existing) cadastral parcels is running The solution that we have chosen is the pre-define datasets This version is the complete solution with all territorial offices with all municipalities http://www.catastro.minhap.es/inspire/cadastralparcels/es.sdgc.cp. Atom.xml Although our data model is a bit different to INSPIRE specification, it will be easy to be made compliant with the specification Saludos cordiales Francisco Javier Quintana