Browsing by Author "Siwawa, Vincent"

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    A bottom-up smart city approach to solid waste management: the case of ICT-enabled waste reclaimers system in two South African cities
    (University of the Witwatersrand, Johannesburg, 2023) Siwawa, Vincent
    This study delves into the realm of waste management in the context of bottom-up smart cities, focusing on the implementation of an innovative ICT-enabled waste reclaimer system in Cape Town and Johannesburg, South Africa. The central inquiry pertains to the pivotal role played by the bottom-up smart city paradigm in addressing waste management challenges and fostering the inclusion of waste reclaimers within the framework of smart cities. The inadequacies inherent in prevailing top-down smart city approaches and techno-centric solutions extends to the lack of mechanisms within the conventional informal recycling system to furnish reliable, immutable, and transparent waste-related data, thereby compromising security. To address these challenges, a novel approach emerges, fusing the capabilities of the Internet of Things (IoT) and blockchain technology into the informal recycling sector. This ICT-enabled waste reclaimer system introduces a comprehensive framework encompassing training initiatives, the provisioning of protective equipment, smartphones to facilitate communication between households and waste reclaimers, measuring instruments, tricycles, and dedicated spaces for sorting and storing recyclable materials. Employing a qualitative research methodology, this study incorporates a blend of document analysis, integrative literature review, and semi-structured interviews with key stakeholders. The selection of case studies, namely BanQu, Kudoti, and Regenize, is underpinned by purposive sampling. An array of research instruments including webinars, photography, participant observations, and transect walks contribute to the rich data collection process. The study draws upon the socio-technical transition theory to sustainability and the Multi-Level Perspective (MLP) as conceptual frameworks to dissect the digital transformation of the informal waste sector through the lens of the ICT-enabled waste reclaimer system. Findings underscore the potential of this innovative system to foster symbiotic connections between waste reclaimers and stakeholders embedded within the recycling value chain. This, in turn, culminates in enhanced working conditions and augmented income for waste reclaimers. Crucially, the ICT-enabled waste reclaimer system offers mechanisms for waste monitoring and tracking, while concurrently introducing incentives and rewards. By generating precise, secure, and reliable data, this system engenders a paradigm shift from a conventional cash- based payment structure to a virtual and electronic payment mechanism. Preliminary evidence showcases a notable threefold increase in recyclable collection by waste reclaimers compared to municipal efforts. In culmination, this study delivers both theoretical and empirical contributions by shedding light on the integration of waste reclaimers and waste management within the context of a bottom-up smart city approach. The study posits a promising trajectory for future research and ushers in new avenues for the development of bottom-up smart cities within the ambit of developing nations.
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    The implementation of site and service schemes in a depressed economy: the case study of Beitbridge, Zimbabwe
    (2018) Siwawa, Vincent
    The implementation of site and service schemes (S & SS) as a low cost sustainable housing arrangement in Beitbridge may not succeed in a depressed economy entrenched with both formal and informal approaches to project implementation. The delivery of low cost houses though S & SS as a low cost sustainable housing delivery approach has not lived up to its expectations, leaving much be desired except to arouse people’s concerted efforts to project implementation. This is in spite of a partnership which promised to be a potential success in providing serviced sites with infrastructure and services and reduce the housing backlog in Beitbridge. The depressed economy eroded household incomes, reduced government public funding of housing development and reduced municipal capacity to provide infrastructure which corresponds with the increased rate of housing development. Following an insightful in-depth interview methodology and several transect walk to the Dulivhadzimu West S & SS Project site, I argue that implementation of the scheme in terms of administrative, infrastructure provision and financial aspects were weak to enable successful implementation of the conventional approach to the scheme. The implementation inadvertently shifted to informal and unplanned approach to the dismay of the municipality and implementing partner and ended up benefiting the high income people who could afford paying for the services. As such, there were no clear regulatory mechanisms and modalities to enable the targeted low-income people to be beneficiaries of the scheme which was hijacked and benefited the high income people in Beitbridge. As a result, this has resulted in self-help approaches as resulting in self built houses through parallel and incremental development and informal adoption of alternative conventional infrastructure like septic tanks for sanitation facilities. Although the scheme is still in the early stages of project implementation, it clear that the trajectory of the implementation has changed and that the low income people, as the target population, might have been missed.