Author 'Boucher Marc dit de Meilh' (Id 198905 ) : Traboule of the medieval period located in Old Lyon, and of the rue Saint-Jean on Place Bellecour and Croix Rousse, etc traboule (trabouler) was used as a passage from one place to the other of the Rhône and the Saône. For example, from one neighborhood to the other and out of the weather, of the major risks of aggression, etc, The traboule is the transition from one home to the other and leading to a small square (a place of meeting and exchange) as well as a common well. Evacuations along the foot of the houses, and the corridors are gutters, deep and carved out of the stone and encastrès between the thick walls and tiled floors, massive stone... Ph : Marc de Meilhan Butcher.