76 The Future of Water in African Cities
The city of Abuja is growing rapidly (see Figure 3.6), and its spatial growth is likely to follow a starfish-like pattern, with roads as one of the facilitators of further urbanization. This growth pattern has two important characteristics for water management: it is difficult to predict as it will depend on such factors as road construction, and it will cause a centralized, piped network to become very long. In this case, the modular Figure 3.6 Illustration of Future Urban Extent for a Mature City (Top) and for a Fast-Growing City (Bottom)
Source: World Bank. Note: Maps available for download from the website: http://water.worldbank.org/AfricaIUWM.