Mixing Double and Single Track
Because double and single track may use different signalling systems, it may be awkward and confusing to mix double and single track too often. For example, intermediate mechanical signal boxes on a double-track line can be closed during periods of light traffic, but this cannot be done if there is a single-line section in between. This problem is less serious with electrical signalling such as Centralized traffic control.
Read more about this topic: Double Track
Famous quotes containing the words mixing, double, single and/or track:
“How natural that the errors of the ancient should be handed down and, mixing with the principles and system which Christ taught, give to us an adulterated Christianity.”
—Olympia Brown (1835–1900)
“Under the lindens on the heather,
There was our double resting-place.”
—Walther Von Der Vogelweide (1170?–1230?)
“After that came commencement day—that great day for which all other days were made. And it went. And that night I felt of myself all over, and to my astonishment, I found ‘twas the same old Rud. Not a single cubit added to my stature; not a hair’s breadth to my girth. If anything, on the contrary, I felt more lank and gaunt than common, much as if a load were off my stomach.”
—Rutherford Birchard Hayes (1822–1893)
“Anyone who tries to keep track of what is happening in China is going to end up by wearing all the skin of his left ear from twirling around on it.”
—Robert Benchley (1889–1945)