By analyzing these vibrations, DAS creates a detailed acoustic picture of the condition of the track. Any sudden change in signature, such as indicating a crack in the rail or a loose joint, can trigger an alert for rail operators, allowing them to take “proactive action” to resolve the problem before it becomes a hazard.

The use of DAS has many advantages over traditional methods of monitoring railway infrastructure.

First, DAS is a continuous monitoring system that provides real-time road condition data. This differs from traditional methods, which often involve periodic checks that can miss subtle changes or are not performed frequently enough to detect developing problems.

Secondly, the system is extremely sensitive and can detect even the smallest vibrations.

Third, DAS is non-intrusive because it uses existing fiber optic cables currently used for telecommunications or signaling. This eliminates the need for costly installation of new infrastructure.

Fourth, DAS is scalable, making it easier to deploy on long lines.

Implementation of DAS is currently ongoing in many countries and showing positive results.

Source: Ferra

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I am a professional journalist and content creator with extensive experience writing for news websites. I currently work as an author at Gadget Onus, where I specialize in covering hot news topics. My written pieces have been published on some of the biggest media outlets around the world, including The Guardian and BBC News.


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