which controls how trains move and the distance in which they stop. The NTSB was also investigating braking systems, residue from organic material on the tracks — such as leaves — and other ...
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NTSB report says wheel slide led to collision between CTA train, snow removal machineNTSB investigators found train No. 593's dynamic ... Investigators found that braking began with stopping distance greater than the 1,780 feet needed under ideal conditions, and in stopping ...
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