For reasons of sustainability, world energy consumption per capita will have to decrease and become more evenly distributed globally. Moreover, it must cause less environmental disruption. This calls for vehicles that are safe, quiet and environmentally clean and for an energy-efficient urban organization with energy-efficient and flexible transport and traffic systems. The basic infrastructural transport systems of today are generally adequate in places but in many large cities they are virtually non-existent. However, they often entail large-scale, heavy and long-term investments and lack the flexibility to meet the future need for changes.
How can a limited transportation energy budget be optimized in different transport systems to fulfil mobility needs? How can information technology enhance the matching of transport demands and the need for effective transport system interaction? Will possible forthcoming energy consumption restrictions make local production necessary? Will the frequent establishment of new cities optimized for sustainable urban life help? Which opportunities to fulfil transport and mobility needs will be created? Will new energy technologies offer better solutions for the future?