The document discusses the concepts of mobility, sustainable development, and tourism development. It defines mobility as the state of being mobile and notes its concerns include various forms of transport, residence, social aspects, and profession. Tourism development is defined as relating to accommodations, transport, and equipment to manage tourism while combining it with landscapes and populations. Sustainable development integrates the economic, ecological, and social dimensions. Links are explored between sustainable development, mobility, and tourism such as through carpooling, travel plans, accessible transport, and eco-friendly tourism activities and infrastructure.