Isaac
Derby R.T.C.(Network Rail) to Barnetby - 3Q02 - (37254) From Network Rail: The Ultrasonic Test Unit has two separate ground penetrating radar units can detect irregularities in the ballast and formation up to two metres deep, including voids; The ultrasonic test equipment on board can give early warning of any problems that could later occur with the track; The UTU’s rail profile scanner uses laser technology to compare the state of the railhead with a pre-programmed template to judge if the track is becoming worn out of shape, and in need of grinding. #photos #trainspotting #colas #networkrail #class37 #UTU #37254 #3Q02 https://live.rail-record.co.uk/train/?c=C33463&d=2022-10-26