.../methodology/approach In this study, an inspection robot was designed for detecting crack, corrosion, missing clips and wear on rail track facilities. The robot is designed to use infrared and ultrasonic sensors for obstacles avoidance and crack detection, two 3D-profilometer for wear detection as well...

...: Equation 1 Most of the models in the maintenance float literature have, however, focused only upon the machine failure and its repair. The failure models discussed so far comprised a single distribution characterising either a random (time‐independent) or a wear‐out (time‐dependent) failure. In practice...