The Chicago Transit Authority (CTA) is testing a new fiber optic-based acoustic sensing system to monitor its railways. This smart technology helps detect unauthorized access and objects that fall onto tracks in real time. This is reported by the railway transport news portal Railway Supply.

The Chicago Transit Authority (CTA) is testing a new fiber optic-based acoustic sensing system to monitor its railways. This smart technology helps detect unauthorized access and objects that fall onto tracks in real time
Source, photo: www.railwaypro.com

Sensonic’s Distributed Acoustic Sensing (DAS) transforms existing fiber optic cables into sensors that detect vibrations. These include movements from people, vehicles, or debris, which are then analyzed to determine whether they pose a threat to operations.

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Each DAS device monitors up to 85.5 kilometers of track, making it ideal for a citywide rollout. When anomalies occur, the system immediately alerts CTA staff, helping them respond before delays or accidents happen.

Chicago and Sensonic Begin Yearlong Feasibility Study

The 12-month pilot begins with a feasibility phase that will assess track environments across Chicago. The team will focus on elevated lines, ground-level tracks, and underground rail to identify optimal system placement.

This phase includes equipment procurement, testing, and initial deployment at one selected site. If successful, a full alert and monitoring system will be installed to support operational readiness and passenger protection.

CTA will provide $110,700 in funding across two phases. The first covers system evaluation and testing, while the second pays for hardware and real-time alert software to be installed citywide.

Smart Monitoring to Enhance Safety Across Chicago Transit

CTA Acting President Nora Leerhsen stressed that intrusions onto rail tracks are dangerous and disruptive. She emphasized that this technology could prevent incidents and save lives by enabling immediate staff response.

By investing in Sensonic’s system, Chicago is embracing innovation to future-proof its transit infrastructure. The city aims to combine advanced monitoring with rapid decision-making to ensure safe, reliable transportation for all riders.

Source, photo: www.railwaypro.com

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