Mapping deeply buried defects in rails

The recent safety incidents on the French railway network (the TGV derailment at Marseilles St Charles) underline the fact that the condition of rail infrastructure is of major concern in transportation and users’ safety. Up to 20% of the rail breaks observed in 2020 are due to rail foot damages. The objectives of ULTRATRAIL project are to overcome the limitations of the conventional practice in the non- destructive control of rails. It focuses on the detection and the 3D location of defects, in particular deep buried defects, under only one-sided access along the rail-running surface. ULTRATRAIL project is an ANR project led by Université Gustave Eiffel (UGE) with two partners: SNCF Réseau and the Institute of mechanical engineering of Bordeaux (I2M).

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