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Top Terms > Communication and control > Control > Control system applications > Traffic control > Railroad traffic control > Railroad traffic control devices > Railroad signals

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Railroad signals (Dcmtrys)

Broader Term
Railroad traffic control devices (Dcmtry)
Narrower Terms
Cab signals (Dcmtrysc)
Wayside signals (Dcmtrysw)
Related Terms (Hierarchical)
Track circuits (Dcmtryt)