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| Definition Of: |
Pumping Signal
Any fixed signal including Absolute and Intermediate block signals, who's indications change rapidly from one indication to another and then back again due to track circuit or signal circuit failure. An engineer encountering such a signal will be governed by the most restrictive indication the signal can display.
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Railroad Dictionary INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 A: Page 1 of 1.
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