The automatic monitoring system has provided continuous information about every movement in the affected zone. Two years ago a Leica TM30 Monitoring Sensor was installed on a stable pillar below the slide area and connected to the Leica GeoMoS monitoring system. Since then the sensor has monitored 15 observation points located inside and outside the danger zone every hour, 24/7. The results are automatically forwarded to an FTP server in the Forestry Department and then analyzed by experts.
Michael Rutschmann, Product Manager at Leica Geosystems and technical consultant for this project, also has access to the data: "For years we have been able to track three-dimensional data with millimeter-accuracy in real-time, knowing when movements took place and in which direction. The responsible experts were able to analyze developments and trends, and combined this data with additional information. The complete measurement history is very valuable to the geologists’ further analysis.”
The experts were kept informed by SMS about the movements. As their speed continued to increase, it became clear that the rock would soon break off.