4. Conclusion

This article illustrates obsolescence in the rail industry, particularly in electronic and mechanical parts. It describes the obsolescence problems encountered in maintaining rolling stock in working order for a service life of 40 years. This means maintaining the supply of parts, the underlying know-how, or successfully replacing parts while maintaining their conformity. To achieve these objectives, various methods can be implemented, such as the use of 3D printing.

The implementation of a circular economy is also an interesting solution. The circular economy encompasses a number of principles that enable a product's use to be extended, thereby delaying or anticipating the effects of obsolescence. It is still under development in the rail industry. Developing a circular economy strategy in this sector could help minimize the consequences of obsolescence, while...