Methodology for the generation of 3D city models and integration of HBIM models in GIS: Case studies

[EN] The Architecture, Engineering and Construction (AEC) industry increasingly demands the availability of semantic and interactive digital models with the environment, capable of simulating decision-making during its life cycle and representing the results achieved. This motivates the need to develop models that integrate spatial information (GIS) and construction information (HBIM), favouring the achievement of the Smart City and Digital Twin concepts. GIS & HBIM platform is a useful tool, with potential applications in the world of built heritage; but it still has certain inefficiencies related to interoperability, the semantics of the formats and the geometry of the models. The objective of this contribution is to suggest a procedure for the generation of 3D visualization models of existing cities by integrating HBIM models in GIS environments. For this, three software and two types of data sources (existing plans and point cloud) are used. The methodology is tested in four locations of different dimensions, managing to identify the advantages/disadvantages of each application. Carrasco, CA.; Lombillo, I.; Sánchez-Espeso, J. (2022). Methodology for the generation of 3D city models and integration of HBIM models in GIS: Case studies. VITRUVIO - International Journal of Architectural Technology and Sustainability. 7(2):74-87. https://doi.org/10.4995/vitruvio-ijats.2022.18808 Abd, A.M., Hameed, A.H., Nsaif, B.M. 2020. ‘Documentation of construction project using integration of BIM and GIS technique’, Asian Journal of Civil Engineering, 21(7), 1249–1257. https://doi.org/10.1007/s42107-020-00273-9 Andrianesi, D.E., Dimopoulou, E. 2020. ‘an integrated bim-gis platform for representing and visualizing 3d cadastral data’, in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Copernicus GmbH, pp. 3–11. https://doi.org/10.5194/isprs-annals-VI-4-W1-2020-3-2020 Baik, A., Yaagoubi, R., Boehm, J. 2015. ‘Integration of jeddah historical bim and 3D GIS for documentation and restoration of historical monument’, in International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives. International Society for Photogrammetry and Remote Sensing, pp. 29–34. https://doi.org/10.5194/isprsarchives-XL-5-W7-29-2015 Buyuksalih, I., Isikdag, U., Zlatanova, S. 2013. ‘Exploring the processes of generating LOD (0-2) CityGML models in greater municipality of Istanbul’, in International Archives of the Photog