Stations St. Germain, Colombier, Mabilais: Our project for the three stations, Saint Germain, Colombier and Mabilais in Rennes attempts to render concrete and visible the new conception of the metro’s urban significance by concentrating on intelligibility and on the quality of the station’s space. Our project for the station is defined by the following three clear ideas: the articulation of the central space’s full height, delimited by a triangulated mesh ceiling, a principal component in visually linking the station’s platforms with the ticket desk. the placement of public circulation pathways, stairways/escalators designed as beamed structures with a height of around 2.5m, that at a stroke traverse the central atrium. the implementation of a peripheral structure, with a thickness of around 2.5m between the atrium and the civil engineering’s deep box, reinforcing the latter with a view to limiting or even eliminating completely the need for braces, as well as serving as a space for technical galleries. The pivot of this conceptual organization around a large central space, a truly vertical space, offers users a comprehensive vision for orienting themselves within the station and visualizing their paths to the platforms. Reinforced by an architecture with a triangular structural motif, along the inner wall standard escalators are placed, 30° in view and complete with multiple functions.