Comment by amelius
12 days ago
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.
12 days ago
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.
The measurement trains drive slowly in the night.
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
Italy: https://decode39.com/3045/diamond-fs-diagnostics-train-luigi...
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
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.
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.