3. Electronic Theses and Dissertations (ETDs) - All submissions
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Item The adaptive capacity of households in informal settlements in relation to climate change: two cases from Johannesburg(2016) Nenweli, Mpho Morgan RaymondClimate change poses serious challenges to households in informal settlements located in marginal areas such as flood plains that are sensitive to extreme weather events. This thesis explores the complex interrelationship between climate variability and informal settlements using two city-level case studies in Johannesburg, viz., Msawawa and Freedom Charter Square. The main objective of this study was to establish the nature of household adaptive capacity in informal settlements in relation to climate change. This entailed assessing household vulnerability to the increased frequency and severity of extreme weather events such as strong winds, extreme cold, extreme heat, floods, drought and fire, as a basis from which to understand household adaptive capacity. Methodologically, the thesis applied a mixed method approach combining quantitative and qualitative instruments to explore household adaptive capacity in relation to climate change. This methodology was used to understand how households have coped and adapted to extreme weather events in the past. Secondary research involved analysing a range of published and unpublished documents, while the primary research component consisted of a survey of two hundred households across the two settlements as well as key-informant interviews with local leaders in the two informal settlements and relevant officials from the City of Johannesburg. The results of this study show that in Msawawa and Freedom Charter Square, households’ social and economic conditions such as those relating to employment, income, assets and health play a role in their vulnerability to climate change. The ability of households to improve their adaptive capacity is influenced by a range of factors that include access to physical capital, social capital, financial resources and governance. The research found that households in the two informal settlements rely mainly on coping mechanisms such as repairing their shacks after disasters related to extreme weather. They have very limited ability to address underlying causes of vulnerability such as weak dwellings. Social capital is one of the drivers, although not very significant, for coping and critical to efforts for improving household adaptive capacity. The study also found that governance is a contested terrain in which it is difficult to recognise a positive impact on household adaptation to climate change. The study highlights the importance for policy-makers to recognise the need to improve household socio-economic conditions as well as building relationships of trust as drivers that could help in improving adaptive capacity and addressing household vulnerability to climate change.Item Recombinant urban DNA connectivity through adaptation in Diepsloot(2014-02) Nair, Simona70% of the world’s population will be living in cities by 2050. Cities are growing faster than can be designed. Townships and informal settlements are becoming a common site within cities around the world. South African cities are ill and require healing. It has inherited an intrinsic genetic flaw, apartheid’s social and spatial planning. This urban DNA structure encouraged weakness in the connectivity systems and was designed to prevent people from connecting and contracting. It is Postapartheid times and this weakness continues. Therefore the location of interest is Diepsloot, a disconnected post apartheid township. Over 400 000 people reside in this township which is located between two major cities in Gauteng. The conceptual framework is based on the analogy of the Recombinant DNA applied to how urban design unfolds. The scientifically engineered process of healing through sharing, recombining, accepting and adapting is a strong methodology to adopt into the urban design process and methodology. The theoretical framework looks at Peter Calthorpe’s New Urban Network is based on reorganising transport networks into a hierarchy which assists in increasing connectivity and improving the quality of the urban network. While Complex Adaptive Systems theory is understood through Sanders’ five complexity-based observations about cities and urban environments. David Grahame Shane’s explanation of the theory of recombinant urbanism involves the theory that cities emerge from armatures, enclaves and heterotopias which are all constantly combined and re-combined. In addressing spatial inequalities and disconnectivity, three bases of literature have been reviewed. The literature review includes Compact City and Decentralised Concentration, New Urbanism and Transit Oriented Development – Urban Network System. The work researched and developed in these design movements and approaches are vast. This study touches on the essence of the design movements and approaches. The challenge is the application of these strong design approaches or movements into a local context. The hypothesis says that it is possible to develop a design methodology that works from a parallel system of both bottom up and top down design processes. It is possible to extract a strength in the current organic structure of a township development, and incorporate it into formal urbanism design tools. This is to ensure that the formal design intervention is adopted into the current system, or study area, and adapts and grows incrementally. Similar to the process of how the host would accept the recombinant DNA of the antivirus. The aim of the design intervention is to apply local lessons learnt in the existing spatial context and link the strengths found with contemporary urban design principles of transit oriented development that encourage connectivity and intensity of development around intermodal facilities. This approach demonstrates a design methodology that employs a parallel system of bottom up and top down processes. The approach developed is specifically, a design and a physical built morphology analysis and does not include the arm of social interaction in the form of public participation, etc. The findings demonstrate that connectivity and density is a critical component to healing the city. This discussion is held within the Transit Oriented Development model. The study analysed the level of connectivity Diepsloot exhibits from a regional scale, to a district scale and finally to a neighbourhood scale. Healing the weakness of disconnectivity requires tackling it from all scales.Item Investigating residents' perceptions of environmental health in informal settlements of South Africa: the case of Makause, Ekurhuleni Municipality(2015-04-30) James, NtandokabawoThe relationship between humanity and environment influences the health and quality of the environment. In turn, the state of the environment determines the quality of life that inhabitants are bound to live. Urbanization and shortage of housing among the economically deprived groups coupled with lack of affordable housing has encouraged formation of informal settlements in cities throughout South Africa. Poor environmental health conditions are characteristic of such settlements, and these conditions can be attested to numerous factors such as politics, policies as well as failure by local municipalities to strategically improve living conditions of the economically disadvantaged. Twenty years into the new democratic South Africa, communities in these informal settlements are still faced with environmental uncertainties, poor service delivery and forced removals. Authorities are failing to come up with strategies that counter the ever growing urban poor populations that often result from migration of poverty. Communities of these settlements are not homogenous, and thus they perceive their prevailing environmental health conditions differently depending on their world view. Makause informal settlement in Ekurhuleni Metropolitan Municipality (EMM) lack basic services such as sanitation, water and electricity, which compromise the environmental health of the area. Residents of this settlement have a history of staging marches in a quest to obtain basic services. Their protests have been intercepted by the heavy arm of the law in the form of South African Police Services. This has been tailored into many other factors that can inform perceptions of their prevailing environmental health. The focus of this dissertation is to investigate local environmental health perceptions in Makause informal settlement with attention to factors that inform these perceptions. Semi-structured interviews formed the major research method employed for this research with a random selection of interviewees from the settlement. The sample generally expressed dissatisfaction with their prevailing environmental health and living conditions. This points to the fact that the government is faced with a task to improve living conditions in informal settlements around the country.