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5 A B C D E F G H I J K L M N O P Q R S T U V W Y Z
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Tra Trb Tre Tri Tro Trs Tru

TRAIN ORDER SIGNAL

by Metro Digital Resources Librarian • April 14, 2016

A signal at train order offices which conveys information to approaching trains regarding whether train orders are to be picked up or whether the orders restrict the train.

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