As 3D models are becoming common geospatial data assets, this issue of GIM International reviews major modelling activities across the globe.
Jantien Stoter provides us with an essential update on the state of the art in 3D city modelling in the context of digital twins. We also explore how an underground 3D model helped the city of London save millions of pounds on the Crossrail 2 railway project. The continuing advancement of 3D mapping technology enables experimentation with the VR visualization of point clouds – a topical development for the geomatics community, as outlined in the contribution by Juho-Pekka Virtanen et al. And this is just a brief selection of what’s in store, since this bumper-packed issue of GIM International once again covers a huge variety of topics in a mix of articles, columns and interviews. Happy reading!