Transportation Infrastructure

Silent Observation for Moving Risks

Roadways, railways, and tunnel systems form the vital arteries of modern life.
But these systems face daily wear, unauthorized activity, weather impacts, and unpredictable failures—often silent and unnoticed until it’s too late.

Distributed Acoustic Sensing (DAS) turns fiber optic cables into sensors.
Vibrations along the cable alter the backscatter of transmitted light.
By analyzing these subtle shifts, the system detects the type and location of physical disturbances with high precision.

FOTAS DAS and DTS solutions by SAMM Teknoloji alert infrastructure managers to invisible threats—enhancing the safety and reliability of roads, rails, and tunnels.

Hearing What Lies Beneath

DAS technology detects physical vibrations along fiber optic lines.

In roadway infrastructure:

• Digging or intrusion attempts
• Pavement subsidence or cracking
• Stress buildup from vehicle load
• Tunnel disturbances or impact

All detected and classified instantly.

In railway monitoring, DAS identifies:

• Fine-scale track deformation
• Loose connections
• Tampering or sabotage activity

This enables data-driven maintenance and improved system integrity.

What Temperature Tells Us – The Silent Warnings Behind the Heat

Distributed Temperature Sensing (DTS) technology provides continuous, real-time thermal monitoring across road tunnels, metro lines, bridges, and critical energy infrastructure — without interruptions or blind spots.

Why DTS Matters in Tunnel Safety

When applied to tunnel environments, DTS technology can detect:

• Early signs of fire ignition,

• Heat accumulation due to overheating (e.g., cable trays or mechanical friction zones),

• Localized temperature anomalies indirectly caused by electrical faults — even before smoke or visual damage appears.

The Limitations of Conventional Fire Detectors

Traditional fire detection systems often struggle in tunnel environments due to harsh conditions such as dust, humidity, strong airflow, and vibrations. These factors lead to frequent maintenance, false alarms, or delayed detection.

In contrast, the FOTAS DTS system turns a standard fiber optic cable into a continuous and maintenance-free linear sensor, immune to environmental challenges. It delivers thermal data with high spatial resolution across the entire monitored zone.

What This Enables:

• Critical extra time for early evacuation procedures,

• Rapid and location-specific emergency response,

• Prevention of infrastructure damage before escalation.

Intelligent Fiber Optic Surveillance for Safer Transport Networks

SAMM Teknoloji’s FOTAS solutions transform existing roadside or trackside fiber optic cables into high-resolution sensing systems, enabling comprehensive, real-time monitoring across highway and railway infrastructures. With this technology, physical anomalies occurring anywhere along the network can be instantly detected and analyzed.

What We Deliver

The FOTAS platform repurposes a standard single-mode telecom fiber into a continuous, multi-point observation line. This allows for rapid detection of unusual vibrations, thermal changes, or external disturbances along tunnels, railways, and roadways. The system delivers accurate, actionable insights—empowering maintenance teams and infrastructure managers to make timely, data-driven decisions.

Application Areas

• Highways, bridges, viaducts
• Rail tracks and fastening systems
• Tunnels, metro routes, underground corridors
• Electrification lines and control boxes
• Smart mobility-integrated transportation routes

These systems face high movement, external stress, and constant operational load.
Their reliability is essential—not only for traffic flow but also for safety, economic resilience, and emergency response.
That’s why DAS and DTS-based monitoring is rapidly gaining adoption worldwide.
Precision, continuous sensing is no longer optional—it’s expected.

Real-Time Oversight for Transportation Infrastructure

Infrastructure protection today depends not only on how we react—but on how quickly and accurately we detect events.
FOTAS systems monitor physical dynamics across transport networks, helping convert sensing into intelligent action.

• DAS-based detection of mechanical disturbances
• DTS-based thermal monitoring and fire alerts
• Risk classification and geo-tagged notifications
• Full coverage across road, rail, and tunnel assets
• Seamless integration with SCADA and smart city networks

Transit Is Life. Keep It Uninterrupted.

Transportation systems carry more than vehicles—they move people, goods, and entire economies.
FOTAS helps protect that flow by detecting threats before failure, enabling early intervention and better-informed decisions.

Let your infrastructure respond before disruption begins.
Contact us for technical documentation and integration support.