Ville radieuse (French pronunciation: ​[vil ʁaˈdjøːz], Radiant City) was an unrealised urban design project designed by the French-Swiss architect Le Corbusier in 1930. It constitutes one of the most influential and controversial urban design doctrines of European modernism. Although Le Corbusier had exhibited his ideas for the ideal city, the Ville contemporaine in the 1920s, during contact with international planners he began work on the Ville Radieuse. In 1930 he had become an active member of the syndicalist movement and proposed the Ville radieuse as a blueprint of social reform.