Geo and BIM does not make a GeoBIM Overview The EuroSDR GeoBIM - - PowerPoint PPT Presentation

Geo and BIM does not make a GeoBIM

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

Overview

National Mapping and Cadastral Agencies (NMAs) Universities

Present development – the EuroSDR GeoBIM project

EuroSDR GeoBIM project

Objectives State of play Use case 1 Use case 2 Conclusions & Discussion

https://3d.bk.tudelft.nl/projects/eurosdr-geobim/ 2017-2019

Partners

EuroSDR – research association of European National Mapping and Cadastral Agencies (NMCAs)

Objectives

Developing a coherent approach to GeoBIM integration

• with consensus between multiple stake-holders from both the Geo and the BIM side.
• at international level (share national experiences)

Join efforts to improve the state-of-art Develop initial solutions for better integration: best practice 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

EuroSDR GeoBIM project

Objectives

State of play Use case 1 Use case 2 Discussion

Investigating the State of Play of GeoBIM Across Europe

Questionnaire – Current Status, Awareness and Activities

• Mixed picture in terms of awareness
• Most countries see added value of linking Geo-BIM (research
• r governmental programmes)
• Fragmented picture in terms of activities – very little

centralised GeoBIM integration strategy work at national level

• More work being done at project/company level

Non-Technical Challenges:

• Lack of GeoBIM Awareness and Knowledge
• 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
• Interoperability Challenges
• Lack of BIM Data Sources

Ellul, C., Stoter, J., Harrie, L., Shariat, M., Behan, A., & Pla, M. (2018). INVESTIGATING THE STATE OF PLAY OF GEOBIM ACROSS EUROPE. Int. Arch. of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 42. Limited awareness A few small initiatives Ongoing activity at regional/national level National level strategic activity

Used standards:

EuroSDR GeoBIM project Objectives

State of play

Use case 1 Use case 2 Conclusions & Discussion

Use cases

EuroSDR GeoBIM project Objectives State of play

Use case 1

Use case 2 Conclusions & Discussion

• Analysis of current practice
• Analysis of where current practice can be improved w.r.t. automation using a

combined Geo and BIM approach

• Specifying geo- and BIM data needs in order to (partly) automate the building permit

process / support the life cycle asset management

• Experiments to show the improvements
• with respect to semantics
• with respect to geometry
• with respect to georeferencing
• with respect to accuracy
• with respect to LoD

Use case 1 – From global design to building permission issuing

EuroSDR GeoBIM project Objectives State of play

Use case 1

Use case 2 Conclusions & Discussion

UC1: From global design to building permission issuing

Sweden Smart Built Environment (many funds): industry, construction, GeoBIM National Board of Housing - automation of building permits (builders, government, maintenance) BIM from first application, final design, as built Tests in northern Sweden using CoClass (national standard) and IFC (e.g. toilet size for wheelchair use) New project with building permits The Netherlands Kadaster and municipalities working for automating building permissions with (geo)BIM France Simulation of urbanism rules Started project (CityGML, building exterior) SimPLU web tool provides error (warning) report Sponsored FutureCityPilot working group for national 3D geodata standard UK Submission of 2D PDF Work on Urban planning and BIM Poland Paper documents, 2D

National Experiences

• verview

Ireland Paper documents, 2D Students doing work to automate regulations (e.g. fire regulations implemented as Revit templates, accessibility rules implemented with Dynamo) Finland Upload of BIM available, not mandatory for small projects 3 checks: BIM only, manual, BIM+Geo 60% of municipalities have joined common online service for building permit applications and bigger municipalities have their own systems Denmark Web interface, BIM not used Designing a national 3D city model (assessing if useful, what use cases, what LOD). EuroSDR GeoBIM project Objectives State of play

Use case 1

Use case 2 Conclusions & Discussion

UC1: From global design to building permission issuing

Workflow proposal

City Regulations 3D city model Validation

• f

Geometry Georef. Semantics Conversion to CityGML Regulations check for building permission Building permission issued And 3D city model updated Read as reference and building design

EuroSDR GeoBIM project Objectives State of play

Use case 1

Use case 2 Conclusions & Discussion

UC1: From global design to building permission issuing

Workflow proposal

City Regulations 3D city model Read as reference and building design Validation

• f

Geometry Georef. Semantics Conversion to CityGML Regulations check for building permission Building permission issued And 3D city model updated Compliancy not checked / Eventual refinement

• r changes during

construction

EuroSDR GeoBIM project Objectives State of play

Use case 1

Use case 2 Conclusions & Discussion

UC1: From global design to building permission issuing

Research questions and next steps

Select regulations that benefit from GeoBIM integration e.g. Right of sun; Shading; Zoning; Maximum height; Fire (distance to hydrants, roads, evacuation areas) Based on these:

• Distinguish between different types of buildings?
• Distinguish between new building or changing buildings?
• Metadata issue
• Accuracy issue
• Georeferencing issue
• Level of detail issue
• Level of development issue

On-going interviews and collaborations with Municipalities and involved stakeholders to answer these (Cities of Den Haag, Rotterdam, Almere)

EuroSDR GeoBIM project Objectives State of play

Use case 1

Use case 2 Conclusions & Discussion

Case studies from practise:

Netherlands (Rotterdam) Ireland France

Use case 2 – Life-cycle support in asset management

EuroSDR GeoBIM project Objectives State of play Use case 1

Use case 2

Conclusions & Discussion

Sweden On-going projects Interaction with Product Life Cycle support (PLCS) standard ISO 10303-239 UK UK PAS (Publically Accessible Standard) for build and operation phases - asset management Large infrastructure projects Management = operation and maintenance during life cycle of project

National Experiences

• verview

Use case 2 – Life-cycle support in asset management

EuroSDR GeoBIM project Objectives State of play Use case 1

Use case 2

Conclusions & Discussion

Workflow draft: Need to employ PLCS standard Still preliminary questions:

• What data asset managers need?
• Can be geoinformation the link between different asset managers?
• …

Conclusions

Common requirements enabling the interoperability:

• Valid Geometry
• Valid topology
• Valid Georeferencing
• Standardised and complete semantics

Common Issues:

• Software
• Georeferencing and CRS (especially for BIM/IFC)
• Standard versions
• 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

Specific tools / guidelines are needed (https://3d.bk.tudelft.nl/projects/geobim/)

EuroSDR GeoBIM project Objectives State of play Use case 1 Use case 2

Conclusion & Discussion

EuroSDR GeoBIM project Objectives State of play Use case 1 Use case 2

Conclusion & Discussion

Task 1. Task 3. Task 2.

Datasets and materials will be provided for the tests Anyone can participate testing one (or more) tools The results will be analysed, synthesised and shared Website, meetings, winter school, publications GeoBIM benchmark: reference study on software support for open standards of city and building models

Task 4. 2019

Submitted as ISPRS Scientific Initiative

Aim: Test software and tools support for open standards (IFC and CityGML) with common datasets and criteria to provide a reference, best practices and guidelines for anyone working with them

Questions and discussion

EuroSDR GeoBIM project Objectives State of play Use case 1 Use case 2

Conclusion & Discussion