ABSTRACT
We present a system for the analysis of tunnel monitoring data that provides data driven navigation in a 3D environment. Tunnel models are obtained from geo-referenced designs or from laser scans of ongoing constructions. Sensor values are visualized at the location where they were recorded, preserving their geospatial context. The monitoring data is analyzed, and critical values appear in a list sorted by their measurement date. When activated the viewpoint smoothly changes to the corresponding position in the 3D scene to allow a close-up inspection. Flying back and forth between such locations supports a better understanding of their spatial distribution and their overall effect on the tunnel. Moving back and forth in time enables interpretation of their development and their relations with other tunneling data such as the construction progress. First evaluations on real data show that this is a valuable method for the analysis of critical monitoring data.
