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Data Specification Buildings KEN INSPIRE Workshop. dominique.laurent@ign.fr. INSPIRE Theme Buildings Status after consultation and testing. Plan of presentation. General methodology, existing data and standards Use cases – user requirements Modelling approach Open issues

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Data Specification Buildings KEN INSPIRE Workshop


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    1. Data Specification Buildings KENINSPIRE Workshop dominique.laurent@ign.fr INSPIRE Theme Buildings Status after consultation and testing

    2. Plan of presentation • General methodology, existing data and standards • Use cases – user requirements • Modelling approach • Open issues • Consultation and testing

    3. General methodology

    4. General process Constraint Existing data Drivers Use cases User requirements Data specification INSPIRE TWG Support Standards Best practices

    5. Existing data • At national level • Topographical view • Cadastral view • At local level • Lack of overview • Existence of 3D data Lack of exhaustive information => take care of feasibility issues during review and testing Detailed information available

    6. CityGML • a common model for the representation and the exchange of 3D city models • Geometry • Semantics, relations. • an international standard from OGC • a base model with information required by most applications + possibilities of extensions • a standard with practical implementations • Software • Data

    7. Strong influence of CityGML • The philosophy of City GML : • base model (information required by most applications) • extensions • CityGML widely used for the modelling of 3D data • Building model at different levels of detail

    8. Strong influence of CityGML BuildingPart • Some modelling concepts • BuildingPart • ExternalReference : reference to another information system

    9. LADM (Land Administration Domain Model) Ex: a flat in a block of flats (in case of joint ownership) Legal/cadastral point of view on buildings

    10. Eurostat classification Eurostat classification partly adopted (for residential use)

    11. Use cases

    12. Concrete use cases Census - Statistics Census Urban units Environmental statistics / Reporting Urban expansion Infrastructures Environment Safety Natural risks (flood, fire, earthquake, landslide) Human risks (transport) Prevention / rescue management Pollutions (air, noise, sol) Quality of habitat Sustainable buildings (energy, …) Historical interest Definition of urban areas Urbanism planning and monitoring Location for new infrastructure Infrastructure management Public patrimony management and valorisation City maps Thematic / tourism maps Risk / travel maps 3D models Communication – Public awareness

    13. Analysis of user requirements Topographic data (including Buildings) Extent of physical phenomenon Propagationmodel Physical phenomenon data • Building influence on physical phenomena Examples: flood, noise, air pollution, light

    14. Building influence on physical phenomena Analysis of user requirements Influence of buildings on air pollution propagation

    15. Influence of physical phenomena on buildings Analysis of user requirements Building data Building vulnerability or ability Analysis Physical phenomenon data • Examples: • flood, fire, earthquake, noise, … : vulnerability to risk or pollution • sun exposure: ability to receive solar panels

    16. Analysis of user requirements • Physical phenomena modelling: • different models more or less detailed Simple data: cheaper (widely available data),quicker to process but only rough results Detailed data : good results but costly (rarely available) and longer to process 3D geometry Material of roof Material of walls Material of structure … 2D geometry Height Date of construction Date of renovation OR

    17. Area of interest Buildings Analysis of user requirements • Computation of population SU SU Statistical data on statistical units Examples: flood, noise, air pollution, light, transport

    18. Analysis of user requirements • Computation of population Population at night Population at day • 2D geometry • Localisation • area • Number of floors • Use • Residential • Industrial • Office • Retail • Public services • -2D geometry • Localisation • area • Number of floors • Use (residential)

    19. Mapping Analysis of user requirements Flooded areas map Noise map around airport Symbols for Electronical Navigation Charts Roof thermography (lost of heat)

    20. Analysis of user requirements • Mapping (e.g. air traffic or marine navigation) Buildings and constructions 2D geometry Height Elevation Classification according to physical aspect Specific buildings and constructions may be landmarks (or obstacles)

    21. Specific buildings and constructions (examples)

    22. Analysis of user requirementsUrbanism planning- Urban monitoring Temporal studies: evolution of city

    23. Analysis of user requirementsUrbanism planning- Urban monitoring Detailed cadastral data for urbanism management

    24. Analysis of user requirements 2D geometry Date of construction Date of demolition Condition (functional, in project, ruin,…) Official area Link to building permit (document, external reference) Access to owner External Reference on Building Association to Cadastral Parcel External Reference on Building Unit Building geometry Spatial overlay with Cadastral Parcel

    25. Harmonisation of interest for European user(s) Harmonisation of interest for national/local user(s) European Directives/initiatives INSPIRE Directive/GCM European Directives/initiatives International use cases Localuse cases Building/BuildingPart OtherConstruction inspireId heightAboveGround BuildingUnit Association to AD numberOfFloors Widely available currentUse elevation beginLifespanVersion Association to CP dateOfConstruction endLifespanVersion dateOfRenovation officialArea conditionOfConstruction externalReference dateOfDemolition officialValue numberOfDwellings specificInterest name constructionNature numberOfBuildingUnits heightBelowGround numberOfFloorsBelowGround materialOfStructure document Rarely available materialOfRoof materialOfFacade roofType openGroundFloor energyPerformance

    26. Profile approach

    27. Harmonisation at European level Harmonisation at national/local level Out of INSPIRE theme BU Owner/tenant Basic cadastral data Basic topographic data Widely available Detailed activity Interior of building Detailed topographic data Rarely available Core profile Extended profile

    28. Modelling approach

    29. Principles • The profile approach: • Normative profile: core data • Illustrative profile: for possible extensions now or in future • Various user requirements • Flexible model • Use of profiles • Most attributes are voidable • Most code lists extensible • Multiple values possible for some attributes • No recommendation about quality

    30. Core 2D profile Scope of theme Building has been enlarged to include feature type OtherConstruction (e.g. bridges, environmental barriers, elevated constructions)

    31. Core 2D profile Common attributes of OtherConstruction and AbstractBuilding are grouped under feature type AbstractConstruction • Only 3 instantiable feature types: • Building • BuildingPart • OtherConstruction Common attributes to feature types Building and BuildingPart in AbstractBuilding

    32. Geometry Multiple geometry allowed Reference geometry to be used for queries and portrayal • Example of geometry

    33. Elevation ElevationCRSReference Multiple values of elevation allowed • Example of elevation

    34. Extended 2D profile Association to AD Association to CP New feature type BuildingUnit: subdivision of Building that is homogeneously related to management aspects

    35. Extended 2D profile Attributes related to the architecture of buildings Attributes related to management of buildings (cadastral data)

    36. Core 3D profile • Based on: • LoD 1 of CityGML (the simplest one) • Basic semantic of core 2D profile

    37. Extended 3D profile Textures from libraries or real-world images • Up to LoD 3 of CityGML: • Description of walls, roof, ground • Description of openings (door, window)

    38. Main issues

    39. Extension of scope Open issue : is this extension relevant ? (useful ? difficult ?) • Feature type : OtherConstruction

    40. Harmonisation of interest for European user(s) Harmonisation of interest for national/local user(s) European Directives/initiatives INSPIRE Directive/GCM European Directives/initiatives International use cases Localuse cases Building/BuildingPart OtherConstruction inspireId heightAboveGround BuildingUnit Association to AD numberOfFloors Widely available currentUse elevation beginLifespanVersion Association to CP dateOfConstruction endLifespanVersion dateOfRenovation officialArea conditionOfConstruction externalReference dateOfDemolition officialValue numberOfDwellings specificInterest name constructionNature numberOfBuildingUnits heightBelowGround Status of cadastral specific data: core or extended profile? numberOfFloorsBelowGround materialOfStructure Rarely available materialOfRoof materialOfFacade roofType document openGroundFloor energyPerformance

    41. Classification of buildings Based on Eurostat classification Mainly based on international use cases (air traffic, marine navigation) More information to be found in themes AF, PF and US Both code lists are extensible by member states Is this simple/rough classification of buildings suitable? How are themes BU and US articulated in your MS? • Current status classification according to: • the activity hosted by the building (for management use cases) • the physical aspect (for mapping purposes)

    42. Consultation and testing

    43. Calendar • June 2011 • Publication of data specification version 2 • INSPIRE conference (Edinburgh) • July-October 2011: review and testing • November 2011 • 21-22 : PCC meeting • 24-25: TWG BU meeting => Comments received but no decision taken yet

    44. Testing SDIC/LMO • Only transformation tests: • National data producers • Regional data producers (Italy, Spain, Germany) • Technology suppliers (Snowflakes) • 15 registered testing SDIC/LMO

    45. Commenting SDIC/LMO • Most comments from national or local producers • (+ EuroControl – air traffic) • Some registered testing SDIC/LMO have not submitted any comment

    46. Received comments Theme BU: n° 3 for received comments

    47. Extension of scope • Sources: • Questionnaire to PCC members • Comments (general review) • Results: • 19 SDIC/LMO: rather in favour of extension • 6 SDIC/LMO: disagreement with extension Agreement for extension (core profile) Agreement for extension (optional) Conflicting comments Disagreement for extension

    48. Status of cadastral data • Open issue: should (specific) cadastral data be in core profile? • BuildingUnit • Link to Address and Cadastral Parcel • Official area, official value • Question misunderstood • Cadastral data should be in INSPIRE (e.g. detailed geometry, year of construction, number of floors, ….) • Specific requests to move links to Address and Cadastral Parcels to core (normative) profile • Some issues foreseen • Official area : feasibility • Official value: privacy

    49. Classification of buildings • Sources: • Questionnaire to PCC members • Comments (general review) • Results: • few answers • no clear trend Agreement for simple classification Eurostat classification Conflicting comments More detailed classification

    50. New requirements • More values in some code lists • More attributes on Building Unit • Use - official value • Official area - energy performance • Heating system and heating source • Connection to networks • Associations to US, PF, AF • Area • Floor description (height, number of dwellings) • More detailed 3D model • ....