STUDENTS’ SUSTAINABILITY SUMMIT – 2008 UNIVERSITY OF REGINA, REGINA - CANADA 11 TH -16 TH MAY 200 The Ecological City Plan; Integrated Concepts For Infrastructure Upgrading In Slum Settlements, The Case For Kibera, Kenya BY: Arch. ALALA N. WILLIS
Expansion into areas not suitable for urban development as steep slopes, wetlands, drainage ways, valleys, biodiversity pots.
Loss of sustainable infrastructural routes and access paths
Ecological pollution and indiscriminate resource taps.
Competition for space, urban sprawl and the need to settle the urban poor leads to growth of informal settlements.
Expansion of commercial and industrial spaces due to economic growth extending to peri-urban areas.
Loss of topography
Decrease in biodiversity,
Water and soil pollution
Loss of agricultural land
An Overview; Kibera is the largest informal settlement in Nairobi and covers approximately 225 hectares and lies along a railway line. It has an estimated population of 500,000 with a density of 2000 per hectare. With 95% of the residents as tenants, the slum lacks a functioning infrastructure network Water supply; Only 11.7% of household have connections to piped water Sanitation, Drainage and Refuse Collection 95% lack adequate infrastructure facilities. Underground sewerage is totally absent. Transport, Access and Energy supply. Kibera lacks designed roads. There are informal footpaths and most earthen roads are too narrow or are blocked by garbage. Land Use Impacts. Land Use governance and design is totally absent. Community facilities for example lack in these slums.
Figure ground of existing conditions: The Ngong River restricted the growth of the informal settlement to the south. The Settlement turns it back to the River using it as a dumping ground for solid waste and sewer for gray water