Warning workers if a train enters an unauthorized worksite Problem description
On long-term worksites, workers need a reliable way to be warned if a train enters the section without authorization.

Automated train warning system for trackside worksites
On long-term worksites, workers need a reliable way to be warned if a train enters the section without authorization.

The connected SAM detonator (OSI-Detonator) is a smart trackside device that indicates on-site activities using a day flag and night LEDs, and triggers an audible alert if a train fails to stop. It is remotely controlled and reports real-time information to the operations center. It is installed in under five minutes, once per work phase.
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