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CN app to study USOR block and interlocking signals
An educational application for CN employees to study USOR block and interlocking signals using flash cards. One side of a presented card is the signal image, the user may then “click” to flip the card over to reveal the signal's name and indication.What's New in the Latest Version 1.4.2
Last updated on Apr 15, 2019
Can now select multiple card groups at a time.
Card groupings were adjusted.
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CN Signals Flash Cards (USOR)
1.4.2 by AllRail Inc.
Apr 15, 2019