Real-Time, Long-Distance Monitoring for Rockfall and Landslide Hazards

Impact Sentinel: Two Decades of Real-Time Hazard Detection Across Alpine Rail Networks

Long-distance rockfall monitoring systems developed by INGLAS GmbH under the Impact Sentinel platform have provided critical protection for mountain railways and transport infrastructure across Switzerland and Austria.

These systems, installed in some of the most challenging alpine environments, deliver consistent, real-time monitoring where traditional communication methods often fail.

Currently operating in multiple high-risk zones in Switzerland , including Silenen , Gurtnellen and Flüeli , the technology enables continuous surveillance of rockfall, landslide, and slope movement activity—ensuring that operators receive accurate, timely data even from the most remote sites.

Persistent Challenges in Mountain Operations

Monitoring hazards along alpine rail corridors remains a complex undertaking. Remote locations are often characterized by:

• Limited or no power infrastructure
• Weak GSM or cellular coverage across valleys and ridgelines
• Harsh weather conditions affecting data transmission
• High logistical and safety costs associated with manual inspections

These factors make reliable, autonomous monitoring essential for maintaining infrastructure safety and operational continuity year-round