For over 25 years, CLEARSY has been working with Alstom on automated metro systems. Over the past decade, this collaboration has focused on Urbalis FLUENCE, Alstom’s next-generation CBTC system.
In an automated metro system, passenger safety relies on an entire chain: system architecture, safety-critical software, and the safety platform on which it runs. The challenge is to ensure that every component, and the interactions between them, meets the required safety standards.
This is why CLEARSY is involved throughout the entire V-model lifecycle, from system design and software development to verification and validation (V&V), safety assurance, and the development of dedicated tools. This approach brings together system engineering, software expertise, and a strong safety culture within a single team.
Through Urbalis FLUENCE, this long-standing collaboration has contributed to the commissioning of metro systems in Lille (Line 1), Shenzhen, and Shanghai. It continues today with projects in Turin, Grand Paris Express Line 18, and NExTEO.