The Grand Paris Express (GPE) is a major infrastructure in Paris, with 200 kilometers of tunnel line and 65 stations in a future-automated project. At Autodesk University 2 years ago, we presented Systra’s first Building Information Modeling (BIM) initiative on the project. During this session, we will show you the evolution of our own practice together with the evolution of the BIM requirements of the GPE client. For example, we will describe the impact of the BIM requirements on our design (structure, architecture, and MEP modeling), and the evolution of BIM uses, such as the development of the 3D model of the entire project at the city level. This global 3D model integrating the Station Revit software models will be used for communication purposes for all project stakeholders, such as city representative, local bodies, or future users. Thanks to the network’s adoption of BIM at different stages of the project, the interactions between the different stakeholders were matured, empowering them for future projects. This session features Navisworks Manage and Revit. AIA Approved