Abstract
'Les Traces Regulateurs' is published in "L'Esprit Nouveau", 1921. There are some descriptions about <traces regulateurs> in "Almanach d'Architecture Moderne", 1926. 'Traces Regulateurs' is published in "Architecture Viante", 1929. The contents of these three articles had been changed little by little. We can see that this change is paralleled by the establishment of Le Corbusier's architectural design method. This paper clears the contents of <traces regulateurs> by comparing and investigating these three articles about 1) used geometrical shapes, 2) proportions, 3) dimensions, and settles this change.