TRANSFORM, a collaborative network of top-tier European university researchers, tackles the complex challenge of the transformation of urban mobility. Recognizing that daily mobility is shaped by individual choices, routines, and cultural norms, while policymakers implement transformative practices like superblocks and Mobility-as-a-Service, TRANSFORM explores the crucial link between these structural changes and the resulting urban mobility cultures. These cultures, varying across cities and regions, impact sustainability goals. Through 13 parallel doctoral theses, the network investigates how and to what extent these transformative practices trigger effective transitions in urban mobility cultures and their socio-spatial effects.