ABSTRACT
In the introduction to this book, national and international objectives of reducing the energy use and emissions from transportation were mentioned as an important part of the motivation for research into relationships between urban structure and travel. Since the report from the UN World Commission on Environment and Development (the Brundtland Commission) was published in 1987, the concept of sustainable development has become an important part of the vocabulary of politicians, administrators and planners. The present professional focus on the transport consequences of urban development is to a high extent originating from the concerns of sustainable development.
