ABSTRACT
In this paper we present a prototype system for collaborative visual analysis of tunnel monitoring data. Remotely located analysts (e.g., geotechnical experts) explore a dynamic 3D scene either with conventional desktop setups or fully immersive with virtual reality headsets. They can inform peers about results and insights by creating a presentation with integrated storytelling mechanisms. The experience is based on a 3D scene of a construction site, featuring digital twins of tunnels as key elements, which are enhanced by geospatially anchored sensors. Animated visualizations show the progress of the construction and its effect on sensor values. A story is defined by choosing stations and timepoints in the 3D scene and adding narrations and additional media. Storytelling is a powerful method for asynchronous collaboration because it makes an analysis session more comprehensible and reproducible, thereby increases trust. Furthermore, it is also very effective for the training of apprentices.
