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CTA approves Senseonics fiber-optic pilot to detect right-of-way intrusions

Chicago Transit Authority Board · June 12, 2025
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Summary

The board placed a Senseonics right-of-way intrusion pilot on the omnibus: a fiber-optic sensor system to run over about 3 miles of track, costing up to $110,000, to detect vibrations and distinguish trains from people or objects; staff will measure false-positive rate, response time and uptime during the pilot before broader deployment.

CTA's Innovation Studio presented a pilot agreement with Senseonics US Inc. to test a fiber-optic sensor and edge-compute system that detects right-of-way intrusions along roughly 3 miles of track.

Molly Poppy explained the system uses fiber-optic vibrations and an edge…

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