The passageway is paved with Veronico tiles. The central straight marble line highlighting the perspective evokes a gutter and recalls the structuring lines in Provencal stone streets. The rough concrete footbridge reunites level 0 of the great hall with the terraces on the roofs of building 4. This passageway harbors the beginning of the main street leading to the studios of the school. It continues the north – south central axis around which the domain is structured.