Trains can go on rails just that burn, without any risk
The Northern States covered Arctic cold, and the temperature dropped to -48 degrees below zero.
Therefore, railroad workers in Chicago began to burn the track to ensure smooth movement of trains. In extreme cold the metal shrinks, and in some cities have already started to decay railroad tracks. To restore the movement of trains, they must be heated to a certain temperature.
Therefore, the railroad used the easiest way is to just set fire to the rails. “The workers do not literally set fire to the rails. The flame actually comes from gas heaters that go along the rails and maintain them warm. Workers also use tubular heating system and blower to heat up the cold air,”– said the representative of the railway workers Michael Gillis in comments to CNN.
Trains can go on rails just that burn, without any risk, because diesel trains burn only from the pressure and heat rather than from open flame.
In the Northern States of the U.S. this system is used by almost all railway companies, when the temperature drops below 0 degrees. Also this method allows you to clean the rails from snow and ice.
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