The objectives of competitive, secure, safe, and environmentally friendly mobility must be conjugated and complemented with the involvement of national, regional and local governments, and that of citizens and industry. The partners of CIVITAS MIMOSA see in CIVITAS the ideal instrument to better understand the frameworks, processes and technicalities required to successfully introduce and test innovative, courageous and integrated strategies for clean, energy-efficient and sustainable urban transport. The possibility to do so with a group of peers makes it all the more stimulating and meaningful, as it supplies local authorities with policies that are both validated by widespread experimentation and legitimised by the concurrent adoption in other cities.