 Platforms, long and at least wide, are positioned on either sides of the tracks except in the , and stations, where they are superimposed to facilitate transfers between lines in certain directions.and De l'Eglise stations are designed with bunk platforms for engineering reasons, the basement rock in their area (shales) being too brittle for a station with more footprint.The terminus stations of future extensions could be equipped with central platforms to accommodate a turning loop.