metroid inspection technology has come a long way since the days of hundred push trolleys culminating in this scenario the moscow michel's the latest weapon in the never ending battle against where. the train can check the track and the same speed as normal passenger trains meaning that inspections can be carried out during the day hundred peasant nights but so deal with the longer peak times including passing to traffic needs a. just speed. the functions of three. trains. one requires heart the number of. the wrong. touch to the rear ultrasound to check for signs of. measurement system at the front . between the rails and their respective heights. prices for lead us. to measure the clearance in the. visual inspection. and the hold. that. the masses of information generated by the. process in real time by. its closely monitored by the team. in the absence of signal deep below the. running along the rails the hypnotic video footage can also be rewound and scrutinized by specialists. in addition to the existing two systems that we used as the track monitoring system and. we also introdu