First Published in 2005. Routledge is an imprint of Taylor & Francis, an informa company.

Cities, Regions and Flows presents a theoretical framework for understanding the changing relationship between places and physical movement, and thoughtfully prepared case studies from five continents on how cities relate to value chains, and how they ensure accessibility and urban liveability in an increasingly contested policy environment. Moreover, the book discusses how urban policies attempt to solve related conflicts in terms of infrastructure provision, land use, local labour markets and environmental sustainability. The two subsystems that are of major interest here - urban regions on the one hand, and logistics management and physical distribution on the other - develop in quite distinct, and often contradictory, ways. Whereas urban regions face disintegration due to the expansion of the built environment and the spatio-temporal fragmentation of life-worlds and regional systems, the logistics system itself demands integration in order to keep flows moving and to reduce costs. Physical flows, networks and chains thus have a fundamental impact on urban restructuring.

A proposal for a new way to understand cities and their design not as artifacts but as systems composed of flows and networks. In The New Science of Cities, Michael Batty suggests that to understand cities we must view them not simply as places in space but as systems of networks and flows. To understand space, he argues, we must understand flows, and to understand flows, we must understand networks—the relations between objects that compose the system of the city. Drawing on the complexity sciences, social physics, urban economics, transportation theory, regional science, and urban geography, and building on his own previous work, Batty introduces theories and methods that reveal the deep structure of how cities function. Batty presents the foundations of a new science of cities, defining flows and their networks and introducing tools that can be applied to understanding different aspects of city structure. He examines the size of cities, their internal order, the transport routes that define them, and the locations that fix these networks. He introduces methods of simulation that range from simple stochastic models to bottom-up evolutionary models to aggregate land-use transportation models. Then, using largely the same tools, he presents design and decision-making models that predict interactions and flows in future cities. These networks emphasize a notion with relevance for future research and planning: that design of cities is collective action.

New Urban Management discusses how the logic of economic flows poses a challenge to local governments throughout the world. The book argues that the increased fluidity in economic life must have its reflection in local economic development policy.

Impacts of increasing population pressure on food demand and land and water resources have sparked interest in nutrient and water balances and flows at a range of scales. In IWMI Research Report 115, it was tried for the first time to quantify rural-urban food flows for selected cities in Ghana and Burkina Faso to analyse their dependency on food supplied from rural vs. peri-urban vs. urban farming. Both, the urban nutrient and water footprints are closely interlinked. Currently, 80-95 percent of the domestic water used and the nutrients consumed go to waste without treatment or resource recovery. The economic dimensions are significant. Options to reduce the environmental burden by closing the rural-urban water and nutrient cycles are discussed.

The Second Edition has been rewritten to provide additional coverage of topics such as urban development and third world cities as well as social issues including homelessness, jobs/housing mismatch and transportation disadvantages. It has also been updated with 1990 Census data.

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Traditionally, architecture has been preoccupied with the resolution of form. That concern helps to make photogenic buildings, which have received a great deal of attention. This book looks instead at the idea of the flows, which connects things together and moves between things. It is more difficult to discuss, but more necessary, because it is what makes things work. Architects have to think about flow – the flow of people through buildings, the flow of energy into buildings, and waste out of them – but usually the effects of flow do not find expression. The essays gathered here present a collection of exploratory ideas and offer an understanding of buildings, people and settlements through concepts of flow.