Blog Entry# 4213048
Posted: Jan 31 2019 (03:06)
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There are over 140,000 miles of privately-owned standard-gauge rail in the United States, vital to the transportation of billions of tons of freight and people. Occasionally, it gets really cold where some of those train tracks sit. Like right now, in Chicago, where Wednesday’s high temperature is expected to be thirteen degrees below zero. Those temperatures are potentially deadly for humans, and deforming for the long pieces of metal that trains ride on.
When it gets to be several degrees below freezing, the metal of the train tracks can contract to the point that it will pull up the bolts holding it in place, or even stress fracture. Crews will soak long pieces of rope in kerosene and burn it to warm