In the emerging megacity of Dar es Salaam, Tanzania, rapid urban growth is progressing informally without statutory planning. Suppliers of technical infrastructure are operating without reliable information about the distribution of future demand, while settlements are starting to grow without basic services.
Household surveys and focus group discussions conducted in new settlements in the urban periphery confirmed the dominance of the shelter first principle in the locational decisions of poor settlers but also the high importance assigned to infrastructure provision during the consolidation process.
Expert interviews with representatives of planning authorities and utility providers have revealed a serious coordination deficit and the need for integrated urban development strategies and tools.
A simulation model capable of demonstrating patterns of future urban growth and of ensuing demand for public utilities proved to provide a powerful tool for the coordination of development policies and the efficient provision of trunk infrastructure (Hill and Lindner 2010).