Working with Open BIM standards to source data for a 3D Cadastre - PowerPoint PPT Presentation

Working with Open BIM standards to source data for a 3D Cadastre Jennifer Oldfield j.oldfield@gobar.nl

BIM FILE GIS OBJECT IFC LADM • Based on Master of Science Geographic Information Management Applications (GIMA) thesis • Supervised by Professor P.J.M van Oosterom TU Delft (GIS) and Professor Jakob Beetz RWTH Aachen University (BIM) Gobar Consulting Group 30/11/2017

Published in the ISPRS’s International Journal of Geographic Information 30/11/2017 Gobar Consulting Group

Contents • Context • Methodology • Process Model • Model View Definition • Use Cases 30/11/2017 Gobar Consulting Group

BIM FILE GIS OBJECT IFC LADM National Context International Scope Kadastrale Kaart Land Administration Domain Model (LADM) ISO19152 Opstalrecht & erfdienstbaarheid Easements and Right of Superficies Dutch open BIM standards: bSDD open Standaard: Information Informatieleveringsspecificatie (ILS), Delivery Manual(IDM) ISO 29481 COINS & VISI NL Open BIM standard: Industry bSDD open Standaard: IFC ISO 16739 Foundation Classes (IFC) Basisregistratie Grootschalige Topografie National Topographic Maps worldwide eg (BGT) Ordnance Survey Britain 30/11/2017 Gobar Consulting Group

Standardised BIM Methodology … buildingSmart.org 30/11/2017 Gobar Consulting Group

…which overlaps with GIS Methodology • Validation • Mapping • Extraction function • Topological boundary representation objects • Use cases • Legacy systems 30/11/2017 Gobar Consulting Group

Information Delivery Manual (IDM) 30/11/2017

Information Delivery Manual (IDM) 30/11/2017 Gobar Consulting Group

Mapping between the IFC and LADM: Grouping spatial units 30/11/2017 Gobar Consulting Group

Mapping between the IFC and LADM: Geometry 30/11/2017 Gobar Consulting Group

Mapping between the IFC and LADM: Using properties to provide a complex 3D ID 30/11/2017 Gobar Consulting Group

Use Case 1: 2D Parcels in 3D Legal spaces are different to physical spaces 30/11/2017 Gobar Consulting Group

Use Case 1: 2D parcels in a 3D database 30/11/2017 Gobar Consulting Group

Code Snippet: 2D Footprint • #100=IFCCARTESIANPOINT((0.,0.)); #101=IFCCARTESIANPOINT((100.,0.)); #102=IFCCARTESIANPOINT((120.,300.)); #103=IFCCARTESIANPOINT((-20.,300.)); #104=IFCPOLYLINE((#100,#101,#102,#103,#100)); #105=IFCSHAPEREPRESENTATION(#3,'FootPrint','Curve2D',(#104)); #106=IFCPRODUCTDEFINITIONSHAPE($,$,(#105)); #107=IFCSPACE('1F93ymWGCHvxyww5AXPh_y',#1,'Room 1',$,$,#2,#106,$, .ELEMENT.,.NOTDEFINED.,$); 30/11/2017 Gobar Consulting Group

Use Case 2: Complex multi-level use rights • Built on pile foundations above water belonging to the municipality • Open and semi open areas – outdoor terrace and slatted- roof dining area Image and Ifc Data courtesy of UK NBS 30/11/2017 Gobar Consulting Group

Use Case 2: the Lakeside Restaurant • 41 pile foundations registered • Difficult to visualise the building • Updating and transferring the deed is a complicated process. 30/11/2017 Gobar Consulting Group

Use Case 2: Lakeside Restaurant Original IFC data set courtesty of National Building Specification (NBS) UK 30/11/2017 Gobar Consulting Group

Hoofdkantoor Vestiging Nedeland Duitsland Gobar adviseurs BV Gobar adviseurs BV Heereweg 345 Königsallee 92a 4+5 Etage 2161 CA Lisse 40212 Düsseldorf Nederland Deutschland E-Mail: info@gobar.nl E-Mail: info@gobar.nl Telefoon: +31 (0)252 422985 Telefoon: +49 (0)211 54 03 98 26 30/11/2017 Gobar Consulting Group

Evaluation: IDM Workflow Delft Station Improved workflow • Significant decrease in registration • First 3D cadastre time • Conflict prevention: design could registration in the be adjusted if necessary Netherlands • Customised topological legal space • Supplemented the files for inclusion in a geo database kadastrale kaart • Communicated in the lingua franca of the BIM world • Generated from existing • Provides legal spaces for (.ifc) files topographic map and the cadastral one

Methodology 30/11/2017 Gobar Consulting Group

Where it began: GIS Methodology • Study other conversion functions • Select Use Cases Analyse • Map BIM to LADM • Create Data base Schema Design • the mapped data and the conversion and validation function in a prototype environment • Test using use cases Implement • Compare information model and conversion and validation function • Repeat and improve Evaluate 30/11/2017 Gobar Consulting Group

Building the Model 30/11/2017 Gobar Consulting Group

MODEL Requirements Building Smart Model View Definition (MVD) Achieved Still to achieve Bounded closed topological volume Topological volumes allow the legal Web Server based This would allow queries to be made spaces to be connected up together from a variety of sources including the without overlap and the creation of an organisation itself and individuals overview Location information (co ordinates) Legal spaces positioned both by local 3D complex ID Legal space related to one or more co ordinates and the national height ground parcels with separate unique datum system on a map rather than indices to connect it up with different referenced to physical markers as in the rights current Dutch system. Different volumes Incorporates traditional parcel columns in addition to volume parcels Data checked for validity Geometrically and topologically correct (no non manifold objects, closed volumes) and no overlap but not for how accurately it represents the building – this would be left to the owners as in the current system Geometry - Polyhedron and 3D This is how the volumes would be representations open at the top and/or stored in a database bottom 30/11/2017 Gobar Consulting Group

How do you fit 3 elephants in a Volkswagen Beetle? BIM GIS 30/11/2017 Gobar Consulting Group

Use Case 1: 2D parcels in a 3D database 30/11/2017 Gobar Consulting Group

Explanation of the Dutch Kadaster's Map of Legal Spaces Explanation in Dutch Explanation in English 1 Kadastrale gemeente the municipality the spatial unit is Sectie registered in (Ambt-Doetinchem) and its Perceel unique number (711) and section (P) 2 Perceelnummer Unique number repeated (711) Huisnummer House number in red (25) 3 Vastgestelde kadastrale grens Spatial unit boundary which has been measured by the Kadaster and is thus ‘fixed’ (Henssen 1996). 4 Voorlopige kadastrale grens Spatial unit boundary which has been drawn on the map by an intermediary and which still needs to be measured and ‘fixed’. 5 Administratieve kadastrale grens Spatial unit boundary which has been drawn on the map by the Kadaster but which still needs to be measured. Bebouwing Buildings themselves (outlined in red and with red house numbers). Overige topografie Other topographical features (outlined with a narrower black line than the fixed boundaries (3)). 30/11/2017 Gobar Consulting Group

Use Case 2: Tapered building • Building larger than its footprint • CityGML LOD 2 volume ≠ automatically generated from aerial photo • .ifc format • Validation (closed volume) completed by software 30/11/2017 Gobar Consulting Group

Scenario 2: Multi level use rights Nemo, Amsterdam and the Evoluon, Eindhoven Building (Malietoren) above the Utrechtsebaan (A12) The Hague source:www.wegenforum. 30/11/2017 Gobar Consulting Group

Land Administration Domain Model (LADM) 30/11/2017 Gobar Consulting Group