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:
“As I was going by Charing Cross,
I saw a black man upon a black horse;
They told me it was King Charles the First—”
—Unknown. As I was going by Charing Cross (l. 1–3)
“So long as State constitutions say that all may vote when twenty-one, save idiots, lunatics, convicts and women, you are brought down politically to the level of those others disfranchised.”
—Susan B. Anthony (1820–1906)