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Title: Tools for BIM-GIS Integration (IFC Georeferencing and Conversions): Results from the GeoBIM Benchmark 2019
Authors: Noardo, Francesca
Harrie, Lars
Arroyo Ohori, Ken
Biljecki, Filip 
Ellul, Claire
Eriksson, Helen
Guler, Dogus
Hintz, Dean
Jadidi, Mojgan A
Pla, Maria
Sanchez, Santi
Stouffs, Rudi 
Tekavec, Jernej
Stoter, Jantien
Issue Date: 2020
Publisher: MDPI AG
Citation: Noardo, Francesca, Harrie, Lars, Arroyo Ohori, Ken, Biljecki, Filip, Ellul, Claire, Eriksson, Helen, Guler, Dogus, Hintz, Dean, Jadidi, Mojgan A, Pla, Maria, Sanchez, Santi, Stouffs, Rudi, Tekavec, Jernej, Stoter, Jantien (2020). Tools for BIM-GIS Integration (IFC Georeferencing and Conversions): Results from the GeoBIM Benchmark 2019. ISPRS International Journal of Geo-Information 9 (9) : 502-502. ScholarBank@NUS Repository.
Abstract: The integration of 3D city models with Building Information Models (BIM), abbreviated as GeoBIM, facilitates improved data support to several applications, e.g. 3D map updates, building permits issuing, detailed city analysis, infrastructure design, context-based building design, to name a few. To solve the integration, several issues need to be tackled and solved, i.e. harmonization of features, interoperability, format conversions, integration of procedures. The GeoBIM benchmark 2019, funded by ISPRS and EuroSDR, evaluated the state of implementation of tools addressing some of those issues. In particular, in the part of the benchmark described in this paper, the application of georeferencing to Industry Foundation Classes (IFC) models and making consistent conversions between 3D city models and BIM are investigated, considering the OGC CityGML and buildingSMART IFC as reference standards. In the benchmark, sample datasets in the two reference standards were provided. External volunteers were asked to describe and test georeferencing procedures for IFC models and conversion tools between CityGML and IFC. From the analysis of the delivered answers and processed datasets, it was possible to notice that while there are tools and procedures available to support georeferencing and data conversion, comprehensive definition of the requirements, clear rules to perform such two tasks, as well as solid technological solutions implementing them, are still lacking in functionalities. Those specific issues can be a sensible starting point for planning the next GeoBIM integration agendas.
Source Title: ISPRS International Journal of Geo-Information
ISSN: 22209964
DOI: 10.20944/preprints202007.0243.v1
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