Abstract: A system includes an onboard device and a ground device. The onboard device incorporates a geolocation device, a plurality of sensors and at least one shaping module for the raw measurement signals delivered by one or more of the sensors to generate at least one formatted signal. The ground device incorporates a computer able to analyze the at least one formatted signal, to generate at least one indicator relative to the track and/or the rolling stock, the indicator making it possible to detect a damage and monitor variations of the damage so as to optimize maintenance of the track and/or rolling stock. The computer is a damage module able to compute the indicator from the at least one formatted signal and a model of the type of the damage monitored.

Abstract: A system includes an onboard device and a ground device. The onboard device incorporates a geolocation device, a plurality of sensors and at least one shaping module for the raw measurement signals delivered by one or more of said sensors to generate at least one formatted signal. The ground device incorporates a computer able to analyze said at least one formatted signal, to generate at least one indicator relative to the track and/or the rolling stock, said indicator making it possible to detect damage and monitor its variations so as to optimize maintenance of the track and/or rolling stock. The computer is a damage module able to compute said damage indicator from said at least one formatted signal and a model of the monitored damage type.

Abstract: The rail track tie including: a rigid block presenting a bottom face, and a top face for receiving at least one longitudinal rail; a cover for receiving the rigid block and in the form of a rigid shell including a bottom and a peripheral rim around the bottom; and a resilient soleplate disposed between the bottom face of the rigid block and the bottom of the cover. The resilient soleplate has dynamic stiffness k2 lying in the range of 6 kN/mm to 10 kN/mm, and preferably in the range of 6 kN/mm to 8 kN/mm.