How Impact Sentinel is Protecting Switzerland’s Infrastructure
Click on the yellow location points for more information
rockfall monitoring detection landslide
Gotthard Tunnel Entrance - Erstfeld Rynächt, Switzerland
Gotthard Tunnel Portal Monitoring : Sensors installed near tunnel entrances detect rockfalls where trains exit at high speed with limited visibility. Active since 2014, the system now covers over 200 km of alpine track.
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Steep Angle Barriers - Gurtnellen Gitziloch, Switzerland
A barrier and fence system installed above a tunnel entrance protects against large rockfall. Due to high-risk access, the system required special safety planning and climbing expertise.
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Low KJ Barriers - Giof, Switzerland
Deployed in lower-risk areas, these lightweight 2.5 m fences are designed to detect, not absorb, impacts from rock, snow, or trees. One installation spans 400+ meters with over 40 sensors.
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Wall Monitoring Sensor - Faido, Switzerland
Located where one track runs through a tunnel and another outside, this system monitors a 100-year-old stone wall for movement that could pose a risk to passing trains. Three sensors detect tilt, vibration, and collapse.
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Remote Long Distance Communication - Flueli, Switzerland
In rugged terrain without infrastructure, systems rely on solar power and wireless relays to transmit sensor data up to 2.5 km. Redundancy ensures coverage across forest, cliff, and valley zones.
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Targeted Rockfall Monitoring - Hübschhorn, Switzerland
Installed in 2024 following a major debris flow, this dual-system monitors the Hübschhorn rock glacier for long-term movement and provides real-time alerts for sudden events like rockfalls. A targeted sensor is mounted on a large unstable boulder above the Engi snow shed to detect potential collapse.
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