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To maintain the gauge. This is more or less the main purpose of the sleeper; if the rails just sat atop them they'd be effectively worthless.
Heat Rails
A regular set of tracks with two rails are always going to be parallel. If they weren't, the train would derail.
The inside rails inside of the main rails are called guard rails. They are there so that if there is a derailment the train will stay within the rails instead of off of the trestle.
Less friction which equates to higher speeds and less maintenance.
You would need rails, detector rails, power rails, and minecarts.
riding the rails was a common term in the great depression. You hop on a train and ride the rails.
No the 4 rails on it are picatinny.
Twisted Rails was created in 1934.
Live Rails was created in 2010.
Software ruby on rails coder
The Roar of the Rails ended in 1949-12.