How do railroad signals work?
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# Trainsignals
Why do trains honk 5 times?
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How do trains know when another train is coming?
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Why do trains honk 3 times?
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How do you signal a train to stop?
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How are train signals activated?
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Why do trains honk so many times?
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What causes signal issues on trains?
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What triggers train signals?
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Why do trains have signal problems?
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