Guard rail (rail transport)
Type of railroad rail / From Wikipedia, the free encyclopedia
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This article is about railway infrastructure. For highway infrastructure, see Guard rail.
In rail transport, guard rails or check rails are rails used in the construction of the track, placed parallel to regular running rail to keep the wheels of rolling stock in alignment to prevent derailment. They are generally used along areas of restricted clearance, such as a bridge, trestle, tunnel, or level crossing. They also help to minimize damage to the structure and allow easier post-accident cleanup.
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