In a context of increasing attention to sustainability issues, France has formulated a number ofstrategies to develop greener transport practices. The French National Sustainable DevelopmentStrategy is one of them and - among other topics - it encourages soft mobility and the development ofactive modes of transportation such as walking and cycling. In such a setting, the Nîmes andMontpellier Bypass railway project stands out thanks to one of its specificity: planning simultaneouslyfor a high-speed line and a véloroute. A critical investigation of the véloroute’s planning processwithin this project provides elements that may improve usual greenways and véloroutes projects.