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Development of a CityGML Application Domain Extension for Simulating the Building Construction Process
Open AccessFeature PaperArticle

Requirements, Development, and Evaluation of A National Building Standard—A Swedish Case Study

1
Lantmäteriet, Lantmäterigatan 2 C, SE- 801 82 Gävle, Sweden
2
Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden
3
Division of Resources, Energy and Infrastructure, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2020, 9(2), 78; https://doi.org/10.3390/ijgi9020078
Received: 19 December 2019 / Revised: 15 January 2020 / Accepted: 27 January 2020 / Published: 31 January 2020
(This article belongs to the Special Issue Integration of BIM and GIS for Built Environment Applications)
The aim of this paper is to present a proposal for a national building standard in Sweden. We define requirements for the proposed standard, e.g., it should support development of 3D city models, connect to building information models (BIM) and national registers and be based on a national classification system for the urban environment. Based on these requirements we develop an Application Domain Extension (ADE) of the building model in the proposed CityGML 3.0 standard denoted CityGML Sve-Test. CityGML 3.0 includes several new features of interest, e.g., the space concept, enhanced possibilities to convert data, and to link to other standards. In our study we create test data according to CityGML Sve-Test and evaluate it against the requirements. It is shown that BIM models (in Industry Foundation Classes, IFC, format) can be converted to CityGML Sve-Test and that a classification system facilitates this conversion. The CityGML Sve-Test dataset can be used to increase the automation level in building permissions checking and a related study shows that CityGML 3.0 has capabilities to link to legal information and be a base for 3D cadastral index maps. Based on our experience, we suggest that the national building standard should conform to international standards and, if possible, include a classification system. The exchange format (GML, JSON etc.) might change, but to be based on a standardized data model ensures harmonized structures and concepts. View Full-Text
Keywords: building; 3D city models; CityGML 3.0; open standards; BIM building; 3D city models; CityGML 3.0; open standards; BIM
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Eriksson, H.; Johansson, T.; Olsson, P.-O.; Andersson, M.; Engvall, J.; Hast, I.; Harrie, L. Requirements, Development, and Evaluation of A National Building Standard—A Swedish Case Study. ISPRS Int. J. Geo-Inf. 2020, 9, 78.

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