https://2020.stateofthemap.org/sessions/YHEMFS/
Assessing Global OpenStreetMap building completeness to generate large-scale 3D city models
The global OpenStreetMap conference. July 4 - 5 July, 2020 online (was planed to take place in Cape Town, South Africa).
3d city modelslarge scaleassessingglobalopenstreetmap
https://3u3d.edpsciences.org/
3U3D - Usage, Usability, and Utility of 3D City Models
3U3D - Usage, Usability, and Utility of 3D City
3d city modelsusageusabilityutility
https://www.ogc.org/standards/cityjson/
CityJSON Standard – JSON Format for 3D City Models
Mar 24, 2026 - Explore the CityJSON standard, a JSON-based format for easy-to-use exchange of 3D city and landscape models, implementing a subset of the CityGML data model.
3d city modelsjson formatstandard