| 21. | The locomotive ran a red signal and struck the stationary L56 while traveling at about 50 kph.
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| 22. | On 4 March 1989, two trains collided at Purley railway station when one passed a red signal.
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| 23. | A priest was driving his car when, at a crossing, he stopped because of a red signal.
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| 24. | A similar system will stop the tram immediately in the event of a red signal being ignored.
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| 25. | He therefore fired the red signal flare to rally his troops for an assault in that direction.
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| 26. | They had to paddle back out and rendezvous with the sub using infra red signals before dawn broke.
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| 27. | While red signals a warm welcome, experts say that this empowering color also makes the heart pound harder.
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| 28. | A passenger on the S-bahn train said he believed that his train had departed against a red signal.
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| 29. | The automatic braking system sounds an alarm in the engineer's cab if a train passes a red signal.
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| 30. | On 23 December 1899, a serious accident happened here, when a red signal was obscured by thick fog.
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