Geo and BIM does not make a GeoBIM
Overview The EuroSDR GeoBIM project Objectives Investigating the state of play of GeoBIM in Europe The use cases: Use case 1- Building permission automatic issuing Use case 2- life cycle support in asset management Conclusions and Discussion
Present development – the EuroSDR GeoBIM project EuroSDR 2017-2019 Partners GeoBIM project Objectives State of play EuroSDR – research association of Use case 1 European National Mapping and Use case 2 Cadastral Agencies (NMCAs) Conclusions & Discussion National Mapping and Cadastral Agencies (NMAs) Universities https://3d.bk.tudelft.nl/projects/eurosdr-geobim/
Objectives EuroSDR Developing a coherent approach to GeoBIM integration GeoBIM project - with consensus between multiple stake-holders from both the Geo and the BIM side. - at international level (share national experiences) Objectives State of play Join efforts to improve the state-of-art Use case 1 Develop initial solutions for better integration: Use case 2 best practice Discussion for Geo-data in BIM processes and software And for BIM data in Geo-data processes and software Use data from practice , and not “academic” and “clean” IFC models (modelled as expected, without errors). Point of view of 2 use cases
Investigating the State of Play of GeoBIM Across Europe Questionnaire – Current Status, Awareness and EuroSDR Limited awareness GeoBIM Activities project A few small initiatives • Mixed picture in terms of awareness Ongoing activity at Objectives • Most countries see added value of linking Geo-BIM (research regional/national level or governmental programmes) State of National level strategic activity • Fragmented picture in terms of activities – very little play centralised GeoBIM integration strategy work at national level Use case 1 • More work being done at project/company level Use case 2 Non-Technical Challenges: Used standards: Conclusions & •Lack of GeoBIM Awareness and Knowledge Discussion •Lack of Investment •Disciplinary Divide: Geographers, Architects, Engineers Technical Challenges: •Lack of Software to support both BIM and Geo • Lack of Standards •Different Conceptual Models Ellul, C., Stoter, J., Harrie, L., Shariat, M., Behan, A., & Pla, M. (2018). INVESTIGATING THE STATE OF PLAY OF GEOBIM •Interoperability Challenges ACROSS EUROPE. Int. Arch. of the Photogrammetry, Remote •Lack of BIM Data Sources Sensing & Spatial Information Sciences , 42 .
Use cases EuroSDR GeoBIM - Analysis of current practice project - Analysis of where current practice can be improved w.r.t. automation using a Objectives combined Geo and BIM approach State of play - Specifying geo- and BIM data needs in order to (partly) automate the building permit Use case 1 process / support the life cycle asset management Use case 2 - Experiments to show the improvements Conclusions & Discussion • with respect to semantics • with respect to geometry • with respect to georeferencing • with respect to accuracy • with respect to LoD
EuroSDR Use case 1 – From global design to building permission GeoBIM project issuing Objectives State of play Use case 1 Use case 2 Conclusions & Discussion
UC1: From global design to building permission issuing Denmark EuroSDR Sweden National Experiences Web interface, BIM not used GeoBIM Smart Built Environment (many funds): Designing a national 3D city model overview project industry, construction, GeoBIM (assessing if useful, what use National Board of Housing - automation of Objectives cases, what LOD). building permits (builders, government, maintenance) State of play The Netherlands BIM from first application, final design, as built Kadaster and municipalities working Use case Tests in northern Sweden using CoClass for automating building permissions (national standard) and IFC (e.g. toilet size for 1 with (geo)BIM wheelchair use) Use case 2 New project with building permits Ireland Conclusions & Paper documents, 2D Discussion Students doing work to Finland automate regulations (e.g. Upload of BIM available, not fire regulations implemented mandatory for small projects as Revit templates, 3 checks: BIM only, manual, BIM+Geo accessibility rules 60% of municipalities have joined implemented with Dynamo) common online service for building France permit applications and bigger UK Simulation of urbanism rules municipalities have their own systems Submission of 2D PDF Started project (CityGML, building exterior) Work on Urban planning SimPLU web tool provides error (warning) report and BIM Sponsored FutureCityPilot Poland working group for national 3D geodata standard Paper documents, 2D
UC1: From global design to building permission issuing EuroSDR Workflow GeoBIM City Regulations proposal Read as project reference and Objectives building design 3D city model State of play Use case 1 Building Validation Use case 2 permission issued of Conclusions & And Geometry Discussion 3D city model Georef. updated Semantics Conversion to CityGML Regulations check for building permission
UC1: From global design to building permission issuing EuroSDR Workflow GeoBIM City Regulations proposal Read as project reference and Objectives building design 3D city model State of play Use case 1 Compliancy not Building checked Validation Use case 2 permission issued / of Conclusions & And Eventual refinement Geometry Discussion 3D city model or changes during Georef. updated construction Semantics Conversion to CityGML Regulations check for building permission
UC1: From global design to building permission issuing EuroSDR Research Select regulations that benefit from GeoBIM integration GeoBIM questions e.g. Right of sun; Shading; Zoning; Maximum height; Fire (distance to hydrants, project roads, evacuation areas) and next Objectives steps Based on these: State of play • Distinguish between different types of buildings? Use case 1 • Distinguish between new building or changing buildings? Use case 2 • Metadata issue Conclusions & • Accuracy issue Discussion Case studies from • Georeferencing issue practise: • Level of detail issue Netherlands (Rotterdam) Ireland • Level of development issue France On-going interviews and collaborations with Municipalities and involved stakeholders to answer these (Cities of Den Haag, Rotterdam, Almere)
EuroSDR Use case 2 – Life-cycle support in asset management GeoBIM project Objectives State of play Use case 1 Use case 2 Conclusions & Discussion
Use case 2 – Life-cycle support in asset management EuroSDR National Experiences GeoBIM overview project Sweden On-going projects Objectives Interaction with Product Life Cycle support (PLCS) State of play standard ISO 10303-239 Use case 1 UK Use case UK 2 PAS (Publically Accessible Standard) for Conclusions & build and operation Discussion phases - asset management Large infrastructure Workflow draft: projects Need to employ PLCS standard Management = operation and maintenance during Still preliminary questions: life cycle of project • What data asset managers need? • Can be geoinformation the link between different asset managers? • …
Conclusions EuroSDR Common requirements enabling the interoperability: GeoBIM • Valid Geometry project • Specific tools / guidelines are needed Valid topology Objectives • (https://3d.bk.tudelft.nl/projects/geobim/) Valid Georeferencing • State of play Standardised and complete semantics Use case 1 Common Issues : Use case 2 • Software Conclusion • Georeferencing and CRS (especially for BIM/IFC) & • Standard versions Discussion • problems with large datasets Issues linked to the use case 1: Many different institutions giving different permissions Regulations have to be translated into digital (spatial) format Need to promote the solution finding benefits for stakeholders to comply to standards: • We can then accelerate the planning process and permission issuing • Enhance objectivity in the evaluations
GeoBIM benchmark: reference study on software support for open standards of city and EuroSDR building models GeoBIM 2019 project Submitted as ISPRS Aim: Scientific Initiative Objectives Test software and tools support for open standards (IFC and State of play CityGML) with common datasets and criteria to provide a Use case 1 reference, best practices and guidelines for anyone working with them Use case 2 Task 1. Conclusion Datasets and materials will be & provided for the tests Discussion Task 2. Anyone can participate testing one (or more) tools Task 3. The results will be analysed, synthesised and shared Website, meetings, winter school, Task 4. publications
Questions and discussion EuroSDR GeoBIM project Objectives State of play Use case 1 Use case 2 Conclusion & Discussion
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