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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 amelius on Sunday January 25, 2026 @03:17PM (#46757731)
There are special trains with measurement equipment on board, but yes, it sounds to me like every train should be equipped with some basic sensors for anomaly detection.
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Re:Spanish track was fractured before high-speed train disas... by 1718627440 on Sunday January 25, 2026 @05:55PM (#46759459)
The measurement trains drive slowly in the night.
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Re:Spanish track was fractured before high-speed train disas... by Azrael3000 on Sunday January 25, 2026 @06:03PM (#46759546)
Not necessarily, the measurement train my company develops can go up to 100 km/h and measure certain rail features every 5mm at that speed.
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Re:Spanish track was fractured before high-speed train disas... by lefra on Monday January 26, 2026 @01:00AM (#46762319)
100 km/h is slow compared to passenger train (even non-high-speed ones). Depending on how packed the schedule is, it might not be possible to analyse track during the day without causing backups.
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Re:Spanish track was fractured before high-speed train disas... by mkl on Monday January 26, 2026 @01:42AM (#46762543)
They can go at high speed:

Germany: https://de.wikipedia.org/wiki/RAILab

Japan: https://en.wikipedia.org/wiki/Doctor_Yellow

France: https://en.wikipedia.org/wiki/SNCF_TGV_Iris_320

China: https://en.wikipedia.org/wiki/China_railways_CIT_trains

UK: https://en.wikipedia.org/wiki/New_Measurement_Train

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Re:Spanish track was fractured before high-speed train disas... by mitthrowaway2 on Monday January 26, 2026 @03:06AM (#46763019)
Indeed!

> Line inspection is carried out at full speed, up to 270 km/h or 168 mph on the Tōkaidō Shinkansen and 285 km/h or 177 mph on the Sanyō Shinkansen

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Re:Spanish track was fractured before high-speed train disas... by N19PEDL2 on Tuesday January 27, 2026 @08:15AM (#46779546)
Italy: https://decode39.com/3045/diamond-fs-diagnostics-train-luigi...
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