General Railway Security

Trial by fiber - Developing tech to secure rail

2025-09-30 · Daniel Pyke · 4min

The security of our railways isn't just about preventing delays; it's about safeguarding lives, protecting assets, and ensuring the efficient flow of goods and people. Theft of equipment and materials, particularly cables, unfortunately is still a persistent impact to operations incurring significant costs and delays. Perhaps of increasing concern, is unauthorised interference with rail infrastructure, which can range from vandalism to malicious acts intending to cause catastrophic consequences.

One of the biggest hurdles faced in securing rail infrastructure is its sheer scale. Miles upon miles of track, often stretching through remote and challenging terrain, make traditional security methods like patrols and CCTV incredibly resource-intensive and often impractical. How do you effectively monitor hundreds of kilometres of railway lines, detect unauthorized access in real-time, and respond before a minor incident escalates? That is the challenge rail security teams face daily.

This is where advanced technologies can come into play, and fiber optic sensing (FOS), specifically Distributed Acoustic Sensing (DAS), appears as a valuable solution. Imagine a system that turns every inch of your existing fiber optic cables into a sophisticated network of vibration sensors, listening for even the slightest disturbance. That's the power of DAS.

Find out how DAS works

Whether it's the distinctive vibrations of someone trespassing beside or on the tracks, the tell-tale sounds of fences being climbed or cut, or even the movement of vehicles near the track, DAS technology can detect and pinpoint these events with remarkable accuracy. This means you can find potential threats as they happen, rather than when systems fail, allowing for a proactive response rather than a reactive one.

At Sensonic, we're at the forefront of this innovation, developing and refining new DAS capabilities that provide increased situational awareness for rail security and operations teams.

We understand that seeing is believing, so we've put together a short video showing some of the testing and validation of our applications for securing railway infrastructure.

Take a minute to watch how our technology performs in real-world scenarios. This practical demonstration shows how Sensonic's DAS can help you overcome the challenges of securing long and remote railway areas, providing a stealthy shield against a multitude of threats.

Watch the video here to see fiber optic sensing in action and discover how it can revolutionise your rail security strategy.

 

If that has piqued your interest, you can watch more security example videos here.

Speak to our team to find out more and to book a live demo

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