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This thesis examines the idea of conjunctive housing as a viable alternative for habitation within the urban context. It traces the historical origins of housing in conjunctive use with other functions. Various examples of this type of housing are cited extending from its beginnings during the classical era right up to the twentieth century. / The study of the mixed land use concept in urban areas calls for a more comprehensive analysis of the validity of conjunctive housing as an alternative to the ever increasing suburbanization. This idea transcends the notion of landuse efficiency, and underscores the importance of promoting inner-city living. / Conjunctive housing represents a time-tested approach which deviates from various other conventional housing patterns. An exhibit of several types of mixed-use establishments is provided, together with a probe into its generic forms which demonstrate the numerous planning options. This thesis is an attempt to reiterate the concept of conjunctive housing, especially in response to the contemporary trend of urban living, as a viable solution for housing urbanites, a concept which may even prove to promote a socially superior mode of urban lifestyle.

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This study involves stepwise application of Unconstrained Linear Mixer Model (ULMM) for sub-pixel classification of residential areas using Land sat 7 TM image. The image was geometrically and radiometrically corrected and spectral enhancement and classifications were done to determine the possible number of target classes. In the first step, five end-members were used as inputs and the pixels which were considered as well fit to ULMM were identified as outputs. The unidentified pixels were separated and taken to the second step with new end members. This method identified 52% of the mixed pixels were identified in the first phase and 6% in the second phase. 42% of the pixels were left as unidentified after the two steps. The pixels identified by ULMM were grouped into high and low density residential subclasses. The resulting image indicated very low RMS errors. However the percentages of pixels unidentified were high. The independent accuracy test carried out using census population density and the resulting image indicated a low relationship. A hyper-spectral imagery with finer spatial resolution may provide a better sub pixel classification. / Department of Geography

Recent trends indicate that there has been an expansion of food production in cities. The urban areas were traditionally the focus of commercial, industrial and residential land use. Although agriculture was the forte of rural areas, urban agriculture presents an emerging land use in South African cities. Thus urban agriculture is an unconventional land use in terms of city space. This must be viewed within the context of rapid urbanization, especially in developing countries that have experienced rapid growth in urban population numbers through in-migration and natural population growth. This resulted in unemployment and wide scale poverty. As an innovative response to poverty, the poor have generated alternative livelihood strategies, inter alia, the growing of food crops as a means to achieve supplementary sources of food. This study is an examination of the impacts of urban agriculture in the Durban Unicity and uses the case study of the Demat community in Welbedacht. The purpose of the study was firstly to determine the socio-economic profile of the community of Demat. Secondly, the study intended to examine the nature and extent of agriculture in the urban residential area of Demat. Thirdly the study focused on the accessibility, ownership and availablility of resources needed by the people to engage in agricultural production in the community of Demat. The fourth objective was to determine whether urban agriculture was supported by the state and other nongovernmental organizations. A critical objective was to assess the potential role of urban agriculture in food security, income generation and employment creation in the community of Demat. The sixth objective was intended to provide recommendations for improving urban agriculture in the residential area of Demat. The study revealed that the majority of the people were poor. In the absence of formal employment opportunities, the majority indicated that they were involved in urban agriculture to supplement incomes as a means of contributing to food security and to alleviate poverty generally. Even pensioners who are not normally considered to be economically active were involved in urban farming. Although food crops were grown for household consumption, they were also sold to generate supplementary incomes. As this form of agriculture was characterized by low energy inputs, evidence of environmental degradation was non-existent or minimal. In the main, crop cultivation was shaped by multiple influences. Some of the primary factors were food shortages, unemployment, household labour availability and prevailing poverty. Specific problems related to crop production were as follows: damage by livestock, lack of fencing, lack of water, lack ofland, lack of fertilizers, lack offinance and the lack of support services. The recommendations provided in the study relate to general and specific concerns raised by the community of Demat. In this respect the national government, the provincial government and the Durban Unicity must make resources available to alleviate the plight of the poor. urban areas were traditionally the focus of commercial, industrial and residential land use. Although agriculture was the forte of rural areas, urban agriculture presents an emerging land use in South African cities. Thus urban agriculture is an unconventional land use in terms of city space. This must be viewed within the context of rapid urbanization, especially in developing countries that have experienced rapid growth in urban population numbers through in-migration and natural population growth. This resulted in unemployment and wide scale poverty. As an innovative response to poverty, the poor have generated alternative livelihood strategies, inter alia, the growing of food crops as a means to achieve supplementary sources of food. This study is an examination of the impacts of urban agriculture in the Durban Unicity and uses the case study of the Demat community in Welbedacht. The purpose of the study was firstly to determine the socio-economic profile of the community of Demat. Secondly, the study intended to examine the nature and extent of agriculture in the urban residential area of Demat. Thirdly the study focused on the accessibility, ownership and availablility of resources needed by the people to engage in agricultural production in the community of Demat. The fourth objective was to determine whether urban agriculture was supported by the state and other nongovernmental organizations. A critical objective was to assess the potential role of urban agriculture in food security, income generation and employment creation in the community of Demat. The sixth objective was intended to provide recommendations for improving urban agriculture in the residential area of Demat. The study revealed that the majority of the people were poor. In the absence of formal employment opportunities, the majority indicated that they were involved in urban agriculture to supplement incomes as a means of contributing to food security and to alleviate poverty generally. Even pensioners who are not normally considered to be economically active were involved in urban farming. Although food crops were grown for household consumption, they were also sold to generate supplementary incomes. As this form of agriculture was characterized by low energy inputs, evidence of environmental degradation was non-existent or minimal. In the main, crop cultivation was shaped by multiple influences. Some of the primary factors were food shortages, unemployment, household labour availability and prevailing poverty. Specific problems related to crop production were as follows: damage by livestock, lack of fencing, lack of water, lack of land, lack of fertilizers, lack of finance and the lack of support services. The recommendations provided in the study relate to general and specific concerns raised by the community of Demat. In this respect the national government, the provincial government and the Durban Unicity must make resources available to alleviate the plight of the poor. / Thesis (M.A.)-University of Durban-Westville, 2002.

Thesis (M.A.)--Dept. of Geography, University of Adelaide, 1990. / Typescript (Photocopy). Includes bibliographical references (leaves 182-187).

Thesis (M. Env. St.)--University of Adelaide, Mawson Graduate Centre for Environmental Studies, 1993. / Includes bibliographical references (leaves 101-107).