Mobility as a Service Carbon neutrality is more than ever a crucial topic in today’s world, with cities being more and more polluted each year. Private transport is surely part of the problem, with cities congestion a direct consequence of the non-sustainable individual usage of car vehicles. Mobility as a Service is a new concept that gained a lot of interest in the last ten years, with the goal of finding new paradigms of urban transport leading to a less polluting and less congested cities. In these years in fact, a big amount of research and studies have been carried out to analyse the strength and weaknesses of this concept, with different pilot projects all over the world.