Data is playing a larger and larger role in urban mobility. Intelligent transport systems (ITS) allow a city to digitally link and share data from one sub-system with another to improve the efficiency of the overall system. Data – and data sharing – also play an important role in the development of shared mobility and Mobility as a Service. Data-based planning is an increasingly important competence for cities to be able to dynamically react to shifting mobility patterns and make informed decisions about future mobility needs. Consistent data collection also allows a city to track its progress towards the achievement of its sustainable mobility (and other) goals.