What would the advent of Multimodal Traffic Management (MTM) be like in Europe by 2050? This paper provides some answers by suggesting three contrasted sociocultural scenarios that refer to different key societal values. Traffic management has been siloed so far with few or no communication between stakeholders (i.e. network and traffic managers, transport service providers, fleet operators, users, etc.). Yet better coordination based on Data sharing among traffic stakeholders could facilitate the future of more efficient transport from an economic and environmental point of view in line with the European policies. It would also make it easier to manage recurrent or exceptional disruptions. Beyond the technological issues raised up by the sharing of traffic data, this paper’s main challenge is to consider the future societal contexts and values on which European society could be based in the next decades. Based on a literature review, on practitioners’ and experts’ workshops and interviews, the paper provides three explorative scenarios addressing two questions: These explorative scenarios are thus designed to stimulate debate.