3. Electronic Theses and Dissertations (ETDs) - All submissions
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Item The significance of innovation networks in the formalisation of urban agriculture as an urban land use: the case of Johannesburg(2019-10) Zivhave, MorgenMainstream debates show the continued marginalisation of traditional urban agriculture (UA) by conventional land use planning despite its food security, nutrition, environmental and social benefits globally. Instigated by observed tensions (and resultant vicious cycle) between UA and land use planning in Johannesburg, this study poses innovation as a means for UA to navigate the city’s neoliberal market-driven logic and land use planning. The study argues for the need for innovation by both sectors but takes a step further by drawing on the innovation networks theory to argue the case for a collaborative ecosystem of actors. Literature shows that improving products, services and organisational practices by UA is not sufficient to secure land access in cities. The study uses the market logic within the neoliberal environment, juxtaposing international case studies to explore UA’s place in contemporary Johannesburg. The study used the extended case study approach to gather experiences from UA entities, City of Johannesburg and collaborating partners. The method regards participants as shaping and simultaneously being shaped by the external forces; and thus innovation networks between UA and land use planning practices are mirrored within the broader national neoliberal planning policy. Similar to Almere, Berlin, Detroit, Havana and Portland, the key study findings are that applying the principles of innovating networks to Johannesburg creates a collaborations ecosystem between UA and land use planning actors that attract investment and enhances value addition which in turn leads to formalisation of the sector (thus translating to a virtuous cycle). However, despite these collaboration platforms, neoliberal planning pressures have reversed UA formalisation in the cities of Berlin and Portland as urban farms are converted to real estate. With the exception of Almere, experiences in Havana and Detroit shows the success of innovation networks in permanently zoning UA outside the neoliberal planning pressures. Regrettably, the neoliberal planning paradigm focuses on the economic viability of UA and discounts its social, health, environmental and food security benefits to the local economy.Item NRENs as ICT infrastructure to support e-Services at universities: a case of Wits University(2015) Sekgobela, EugueniaThe research report examined the value brought by NRENs, by investigating the utilization of the South African National Research Network (SANReN) at the University of the Witwatersrand (Wits). It explored the SANReN as the main international bandwidth service for the university and assessed how the university is able to efficiently provide a range of e-services in scientific research through the NREN. Wits scientists engaged in data intensive research and international research collaboration shared the view that the SANReN infrastructure is critical to such work, however due to infrastructure limitations at university level, it is sometimes difficult to maximize the value of this dedicated network, where data storage capacity is low. A wide range of e-services, such as grid computing, use SANReN, but are limited by international bandwidth. A further problem is the high cost of international bandwidth, particularly as the demand for bandwidth increases with the amount of data required in scientific research. The biggest challenge is the growth of demand and the ability to meet this demand. As scientific research relies on real time data, but experiences problems with data storage, advanced data infrastructure is needed in the form of a medium sized data centre, which would be used for storing and transferring large data sets and terabytes of data in and out of the country. In conclusion, although SANReN makes it possible for big science projects to take place at universities, it is somewhat difficult to measure the value that SANReN brings, due to the many limitations mentioned. Therefore a matrix to measure outputs and value of SANReN is required, as proposed in Chapter 6 of this research report.