Add to ORKGInternational audienceThis article analyzes new forms of professional organizations. Those professionals select and manage street equipment in Paris. In connection with recent technical innovations within the field of street equipment (such as digital street equipment or reversible street equipment), the classical and normative process that aims to implant those pieces of equipment in Paris is quite destabilized. New professional figures with various skills have to work and collaborate with the municipal services of Paris. These, in return, have to learn doing with those professionals. Territorial skills and expertise face various skills embodied by professionals, sometimes far from urbanism, but less constrained in their practice. Finally,...