Abstract: Over the past 60 years, urbanisation and cities have fundamentally transformed the social, economic and political geography of West Africa. The number of people living in cities increased from 5 million in 1950 to 133 million in 2010. During the same period, the number of towns and cities with more than 10 000 inhabitants grew from 159 to close to 2 000. A large majority of these agglomerations are secondary cities and small towns that act as hubs and catalysts for local and regional production and supply chains, as well as for the transfer of goods, people and information, linking the local and regional economies to the global economy. The intensity of the spatial interactions of cities has strongly increased with population growth, urbanisation and higher urban density. This paper, part of ongoing work within the Sahel and West Africa Club Secretariat to integrate urbanisation and city growth into analyses of major trends in the region, lays the foundation for the development of a systematic method to capture and describe these spatial interactions. It does so by examining four variables: city size, market potential, urbanisation level and local dominance. These variables, in turn, help to define seven different city groups that can be used to classify West African agglomerations. The initial results of this work reveal the diversity and distinctive behaviours of cities in the region, providing a new perspective on urbanisation dynamics and the influence of spatial variables on urban growth rates, the emergence of new agglomerations and the clustering of cities

Rapid growth, unmanageable cities, urban crisis, macrocephali... The cities of west Africa are no longer ‘plannable’ – at least not using traditional urban development tools. Without negating the importance of participatory processes in city creation, it nonetheless seems crucial to return to city plans and models, to what cities convey, and how they are built. But to understand the city in all its depth and richness, we must also hit the streets. The West African City proposes a dual perspective. At the urban scale, it analyses historical trajectories, spatial development, and urban planning documents to highlight the major trends beyond the plans. At the second level – that of public space – the street is discussed as the city’s lifeblood. By innovating approaches and testing new methods, The West African City offers an unconventional look at Nouakchott, Dakar and Abidjan, the three study sites for this investigation. The city of today, in Africa or elsewhere, must re-examine its many social, economic, cultural, political, and spatial dimensions; for this, urban research has begun challenging its own methods. This book is also the companion of Chenal's MOOC African cities.

In 1950, there were only 152 urban agglomerations in West Africa. Since then, the number of agglomerations has increased to almost 2 000 town and cities which are home to 41% of the region’s total population.

This book clarifies the smart city concept that is gaining application in Sub – Saharan Africa. It shows how the smart concept can be used to address problems that would be difficult and more expensive to solve using traditional techniques such as employment creation. This is done through elaboration of the African interpretation of smartness, using tools for smart solid waste management, e-governance, smart energy, and smart infrastructure. The case studies selected, and each chapter explain a different dimension of the smart city concept and offer innovative solutions to problems of rapid urbanization. It lays the theoretical foundation for further research on smart cities and rural areas in Africa.

This 10th thematic volume of International Development Policy presents a collection of articles exploring some of the complex development challenges associated with Africa’s recent but extremely rapid pace of urbanisation that challenges still predominant but misleading images of Africa as a rural continent. Analysing urban settings through the diverse experiences and perspectives of inhabitants and stakeholders in cities across the continent, the authors consider the evolution of international development policy responses amidst the unique historical, social, economic and political contexts of Africa’s urban development. Contributors include: Carole Ammann, Claudia Baez Camargo, Claire Bénit-Gbaffou, Karen Büscher, Aba Obrumah Crentsil, Sascha Delz, Ton Dietz, Till Förster, Lucy Koechlin, Lalli Metsola, Garth Myers, George Owusu, Edgar Pieterse, Sebastian Prothmann, Warren Smit, and Florian Stoll.