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SIGNAL PREEMPTION

by Metro Digital Resources Librarian • April 14, 2016

In highway operations, an automatic or manual device for altering the normal signal phasing or the sequence of a traffic signal to provide preferential treatment for specific types of vehicles, such as buses or trains. (TRB)

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← SHIFT SHEET (TOUR OF DUTY, RAIL STINT, TRICK, TURN) OPERATIONS
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