A quadruple track railway (also known as a four-track railway) is a railway line consisting of four parallel tracks, with two tracks used in each direction. Quadruple track railways can handle large amounts of traffic, and so are used on very busy routes.
Some tracks are only tripled, having only one extra track to relieve congestion, while some tracks are sextupled, i.e., six parallel tracks with three tracks in each direction.
Read more about Quadruple Track: Advantages of Quadruple Track, Disadvantages of Quadruple Track, Quadruple Track Operation, Quadruple Track Layouts, Gallery
Famous quotes containing the word track:
“The universe constantly and obediently answers to our conceptions; whether we travel fast or slow, the track is laid for us. Let us spend our lives in conceiving then. The poet or the artist never yet had so fair and noble a design but some of his posterity at least could accomplish it.”
—Henry David Thoreau (1817–1862)