Broken Rails
Track circuits can detect some but not all broken rails. If there is only one relay at a turnout, part of the wiring of a turnout is bound to be in parallel, which is not protected from broken rails. If there are two relays at that turnout, then all parts of the wiring can be in series, protecting against broken rails. Thus:
- Weyauwega derailment (1996) - undetected broken rail in turnout.
Read more about this topic: Track Circuit, Accidents
Famous quotes containing the words broken and/or rails:
“But as some silly young men returning from France affect a broken English, to be thought perfect in the French language; so his Lordship, I think, to seem a perfect understander of the unintelligible language of the Schoolmen, pretends an ignorance of his mother-tongue. He talks here of command and counsel as if he were no Englishman, nor knew any difference between their significations.”
—Thomas Hobbes (1579–1688)
“The train’s gone, the rails are cold.”
—Russian saying, trans. by Vladimir Ivanovich Shlyakov (1993)