From regulations to business relations, actions and publicity tools for rubble management[De la réglementation aux relations d’affaires, actions et instruments de publicisation de la gestion des gravats]

Demolition rubble, as a part of the waste produced by Construction and Public Works activities, is part of the main flows of urban metabolism. Because of the environmental issues that they represent, rubble has become an object of public policy since the early 2000s, even though that, as waste from economic activity, their management has the particularity of being carried out by companies from their own production sector. This legal framework is at the origin of a strong evolution of practices. This article focuses on the institutional framework in which rubble is circulated and proposes to analyze the ways of intervention of public authorities in their management. It considers on the one hand the increasing interference of the public by the legislative and administrative functions and on the other hand the roles played by the public actors within operational functions, particularly through business relationships. Thanks to the observation of the example of Lyon (France), we observe that the actor embodying this publicization of rubble management in the most diverse and operative way is the public project owner, even more at the local level which corresponds to the scale of the optimal management for waste considered here