NETHERLANDS: Infrastructure manager ProRail is trialling sensors using third-generation Gotcha technology to monitor freight train wheelsets. The QuoVadisII project measures wheel profiles and axle-loads as trains pass over the sensors.
An abnormal weight distribution over the wheelset could indicate a defect in the wheel, axle or bearings. The operator of the train is alerted to the problem, allowing preventive maintenance to be carried out.
GOTCHA is a compact wheel quality measuring system which works by analysing rail deflections caused by passing trains. Using two optic fibre sensors mounted under each rail, Gotcha is able to automatically identify eccentricity, flats and other quality parameters for individual wheelsets. The use of optic fibres prevents problems with ...
Using estimates for the service life of electronic signalling components, Japan’s Railway Technical Research Institute has developed a method for choosing the ideal time to replace them.
After a long period of neglect, railways in Georgia are undergoing reform at a time when they stand to benefit from east-west trade moving via the Transcaucasian route between the Caspian Sea and the Black Sea.
