The urban built environment is a prime setting for microbial transmission, because just as cities serve as hubs for migration and international travel, components of the urban built environment serve as hubs that drive the transmission of infectious disease pathogens. The risk of infectious diseases for many people living in slums is further compounded by their poverty and their surrounding physical and social environment, which is often overcrowded, is prone to physical hazards, and lacks adequate or secure housing and basic infrastructure, including water, sanitation, or hygiene services. To examine the role of the urban built environment in the emergence and reemergence of infectious diseases that affect human health, the National Academies of Sciences, Engineering, and Medicine planned a public workshop. This publication summarizes the presentations and discussions from the workshop.

Celebrated urban theorist Davis provides a global overview of the diverse religious, ethnic, and political movements competing for the souls of the new urban poor.

Papers read at a symposium in Indian context, organized by Council for Social Development, and held at Calcutta.

The Challenge of Slums presents the first global assessment of slums, emphasizing their problems and prospects. Using a newly formulated operational definition of slums, it presents estimates of the number of urban slum dwellers and examines the factors at all level, from local to global, that underlie the formation of slums as well as their social, spatial and economic characteristics and dynamics. It goes on to evaluate the principal policy responses to the slum challenge of the last few decades. From this assessment, the immensity of the challenges that slums pose is clear. Almost 1 billion people live in slums, the majority in the developing world where over 40 per cent of the urban population are slum dwellers. The number is growing and will continue to increase unless there is serious and concerted action by municipal authorities, governments, civil society and the international community. This report points the way forward and identifies the most promising approaches to achieving the United Nations Millennium Declaration targets for improving the lives of slum dwellers by scaling up participatory slum upgrading and poverty reduction programmes. The Global Report on Human Settlements is the most authoritative and up-to-date assessment of conditions and trends in the world's cities. Written in clear language and supported by informative graphics, case studies and extensive statistical data, it will be an essential tool and reference for researchers, academics, planners, public authorities and civil society organizations around the world.

This book deals with slums as a specific question and a central focus in urban planning. It radically reverses the official version of the history of world cities as narrated during decades: slums are not at the margin of the contemporary process of urbanization; they are an integral part of it. Taking slums as its central focus and regarding them as symptomatic of the ongoing transformations of the city, the book moves to the very heart of the problem in urban planning. The book presents 16 case studies that form the basis for a theory of the slum and a concrete development manual for the slum. The interdisciplinary approach to analysing slums presented in this volume enables researchers to look at social and economic dimensions as well as at the constructive and spatial aspects of slums. Both at the scientific and the pedagogical level, it allows one to recognize the efforts of the slum’s residents, key players in the past, and present development of their neighborhoods, and to challenge public and private stakeholders on priorities decided in urban planning, and their mismatches when compared to the findings of experts and the demands of users. Whether one is a planner, an architect, a developer or simply an inhabitant of an emerging city, the presence of slums in one’s environment – at the same time central and nonetheless incongruous – makes a person ask questions. Today, it is out of the question to be satisfied with the assumption of the marginality of slums, or of the incongruous nature of their existence. Slums are now fully part of the urban landscape, contributing to the identity and the urbanism of cities and their stakeholders.