The Birmingham Centre for Rail Research and Education published few years ago a paper about Condition Monitoring of Audio Frequency Track Circuits.
“This paper presents the initial results from operational trials of track circuit condition monitoring equipment installed at two TI21 audio frequency track circuits in the UK”.
Same conclusion as today: tracks circuits must be preventively maintained before reaching their breaking point.
– Are you working on preventive actions? If yes, why?
– How? By instrumenting each track circuit or through a measurement train?