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A comment on Spanish track was fractured before high-speed train disaster, report finds. Parent comment

Re:Spanish track was fractured before high-speed train disas... by user_7832 on Sunday January 25, 2026 @03:43PM (#46757992)
LIDAR is good, but as another commenter pointed out, Ultrasonic Flaw Detection (USFD) is the gold standard for crack/flaw detection.
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