Sustainable mobility is an academic concept and interdisciplinary research field focused on developing and implementing transportation systems. These systems aim to meet current needs for access to people, goods, services, and information without compromising the ability of future generations to meet their own needs, balancing environmental, social, and economic considerations. This field investigates the complex interactions within socio-technical transport systems, analyzing infrastructure, technologies, policies, user behaviors, and their collective impacts on sustainability dimensions, including externalities like greenhouse gas emissions, air pollution, congestion, and resource consumption, as well as aspects of social equity and safety. Key characteristics include a holistic, systems-level perspective, an emphasis on integration across modes and sectors, a focus on demand management and behavioral change alongside technological solutions, and a commitment to long-term planning and resilience. Its significance lies in providing frameworks and methodologies to address critical global challenges related to transport, such as climate change, environmental degradation, resource depletion, and social exclusion, thereby contributing to sustainable development goals.