Comment by amelius
5 hours 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.
5 hours 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.
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.