ABSTRACT
This chapter explores the possibilities of using urban growth models in slum development projections and to schematically assess how the spatial distribution of that growth affects pollution loads in an existing stream network. Good management of the rapid urbanization process and future urban growth could be achieved through effective land use planning, resource mobilization and capacity building UN-Habitat. Watershed and stream network delineation was performed using a standard geographic information systems-based approach on Aster GDEM data, which was also used as one of the thematic maps for the urban growth model of Lagos. Especially in the context of sub-Saharan Africa, where the process of extensive urban growth just starting, insight in the consequences and potential transitions such developments might produce is crucial. The urban water cycle and the local climatic environment is invariably affected by the urban growth.
