Cross Level
Track geometry is three-dimensional geometry of track layouts and associated measurements used in design, construction and maintenance of railroad tracks. The subject is used in the context of standard, speed limits and other regulations in the areas of track gauge, alignment, elevation, curvature and track surface. Although, the geometry of the tracks is three-dimensional by nature, the standards are usually expressed in two separate layouts for horizontal and vertical.
Read more about Cross Level: Track Gauge, Curvature, Alignment
Famous quotes containing the words cross and/or level:
“Life is a bridge. Cross over it, but build no house on it.”
—Indian proverb, quoted in Bruce Chatwin, The Songlines, ch. 30, “From the Notebooks” (1987)
“Jealousy is indeed a poor medium to secure love, but it is a secure medium to destroy one’s self-respect. For jealous people, like dope-fiends, stoop to the lowest level and in the end inspire only disgust and loathing.”
—Emma Goldman (1869–1940)