Advancements in rail-flaw detection are increasing with technology constantly evolving. New products and methods are being made available by suppliers so railroads can keep rail healthy and cargo and passengers safe. According to Jim Aten, president of Salient Systems, a wholly-owned subsidiary of L.B. Foster Co., "Rail stress is not visible to the naked eye and it changes based on temperature, track stability, curvature, track maintenance and the trains running on the rail.
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