The emergence of the sustainable development, thanks to the recent innovations in French and Algerian laws, is integrated progressively into political views and actions. For French urban planning, the SRU law and its action plans (PLU and PADD) propose a new transversal approach, making coherence between urbanism and environment. For Algerian urban planning, the law n° 01-20 of town planning and sustainable development doesn’t totally change the POS but it brought about changes in them in order to follow the direction of the sustainable development and the participative democracy. The target of this work is to study the link between the noise and the urban planning through. The respective documents of town planning of every country (PLU in France and POS in Algeria). The main question is to examine the relevance of the new urbanistic capacities with regards to the reduction of the road noise and to estimate their actual implementation in terms of politics and local actions. Our cross-disciplinary view allows a deep and complete analysis of this environment and public politics. This approach requires interviews with political and technical staff. It also requires following the elaboration of the urban planning instruments in three cities of Ile-de-France (Fontenay-sous-Bois, Saint-Denis, Boulogne Billancourt) and one city in Algiers (El Mohammadia).The analysis could allow to highlight the different measures in the field of the road noise, and to identify impediments in order to shape a typology of best practices
