Polar vortex forces Chicago rail crews to use fire to keep trains moving
Chicago rail crews are ensuring the tracks don't freeze during the Polar Vortex through gas-fed systems that generate heat near the lines so the rails don't pull apart.
Polar vortex forces Chicago rail crews to use fire to keep trains moving
Chicago rail crews are ensuring the tracks don't freeze during the Polar Vortex through gas-fed systems that generate heat near the lines so the rails don't pull apart.
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