4. Electronic Theses and Dissertations (ETDs) - Faculties submissions

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    Exploring the challenges to drone-aided inspections in construction site management
    (University of the Witwatersrand, Johannesburg, 2024-09) Khorombi, Shadrack; Terblanche, Rolien
    The construction industry, marked by its complexity and evolving standards, demands attention and commitment to quality. To guarantee that works are going according to plan, standards and regulations, in terms of quality and compliance, routine inspection strategies are implemented as an intrinsic part of the project management plan. Construction inspections are generally performed as a contractual obligation to enable an independent view of construction works and their progress for key stakeholders and the client. However, traditional inspection techniques are generally laborious and risky. Inspectors are often exposed to exterior elements; unfavourable conditions; intrinsic risks. Despite all of this, inspectors are still unable to obtain in-depth information on some of the surfaces due the inability to access surfaces or structures to optimal proximity. Drone technology has been proposed as an alternative method to traditional inspection for safer and more efficient inspections. This study endeavoured to explore key challenges to the implementation of drone technology for construction inspections. The methodological approach that the researcher adopted to achieve the research aim encompassed a qualitative method with document analysis, case study and interviews selected as data collection strategies. Techniques to gather empirical information required included observations and semi-structured interview questions. To present findings that are valid, reliable and generalisable, NVivo software was used as a data analysis tool where content analysis and thematic analysis were employed as data analysis strategies. The utilisation of qualitative, inductive case studies within an interpretivist paradigm was considered necessary to contextualise and deepen the understanding of the nature and occurrence of the challenges impeding key role players from full adoption of drone technology for construction site inspection processes. Key findings entail the lack of capital and resource allocation, concerns about transparency and contractual accountability, and the need for clear evidence of return on investment. Technical complexity, disruption to site activities, lack of interest from key stakeholders, capacity issues, and connectivity issues were also uncovered as challenges in the adoption of drone-aided inspections. Additionally, the findings encompassed strategies to overcome challenges impeding the optimal use of drones in construction projects. This study evaluates the current state and potential for drone technology adoption within the South African construction industry, highlighting practical challenges encountered during actual deployments. By proposing solutions such as streamlining regulatory processes and enhancing stakeholder collaboration, the research offers valuable pathways to optimise drone technology implementation during construction documentation and management.
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    Construction Professionals’ Awareness of Automation and Robotics in South Africa
    (University of the Witwatersrand, Johannesburg, 2024) Mbhalati, Kurisani Luther; Jenika, Gobind
    In South Africa, the construction sector, which accounts for approximately 3% of the GDP, is essential for economic growth but struggles with issues such as falling productivity, quality concerns, and safety risks. The adoption of robotics and automation could address these challenges, offering more reliable and precise quality, boosting productivity, cutting costs, and increasing safety by automating dangerous tasks. This cross-sectional study aimed at assessing the awareness of automation and robotics among South African construction professionals through a quantitative survey. Additionally, the research sought to capture the professionals' opinions on the benefits these technologies could offer to construction projects and identify the barriers to their wider adoption as perceived by these professionals. Findings indicated a varied level of awareness among construction professionals, with high familiarity in technologies like Computer-Aided Design (CAD) and lower awareness in emerging technologies such as Virtual Reality (VR). Moreover, the professionals acknowledged the benefits of adopting these technologies, notably highlighting increased productivity and safety as key benefits. They also identified significant barriers to adoption, citing high acquisition costs and socio-economic concerns over job displacement as major obstacles, particularly in a context of high unemployment rates. Considering the construction industry's role in economic growth and recognizing the dip in productivity, alongside the industry's reluctance towards innovation, the study recommends focused educational initiatives and promotional activities for robotics and automation. It further stresses the need for policy changes to ensure the safe and efficient implementation of these technologies. Moreover, from a governmental standpoint, the study suggests providing incentives to businesses to encourage the adoption of robotics and automation in the construction industry
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    Factors Influencing Entrepreneurship in the South African Construction Industry
    (University of the Witwatersrand, Johannesburg, 2021) Maluleke, Sanele
    The unemployment rate in South Africa is at its highest and it has been noted that SMMEs are needed to stimulate job creation. The construction industry is a major contributor to the economy with the contracting industry spearheading the absorption of unskilled and skilled labour. The National Development Plan of 2030’s deadline is approaching and its target to reduce employment is far from being reached by various sectors (which include the construction sector) that were earmarked to create jobs. This problem requires an in-depth look at the factors influencing entrepreneurship in the construction industry. A quantitative method was adopted to gather data from over 1000 sampled respondents who were contractors registered with the CIDB. The findings of the study revealed that internal and external factors have an influence on entrepreneurship equally with neither having any significant impact on the success of an entrepreneur but when looked at separately the two external factors that Influence success were access to funding and the supportive environment and the two internal factors were innovation and creativity. The internal and external factors have an equal influence on the reasons why construction companies are formed were. The findings also showed a positive relationship between age and the success of an entrepreneur
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    Provision of personal protective equipment and sanitary facilities to female construction site workers
    (University of the Witwatersrand, Johannesburg, 2023-09) Nene, Simphiwe; Ozumba, Obinna; Sunjika, Bernadette
    The study was based on an aspect of social justice, namely gender equality in the workplace for the female workers who work on construction sites. The area covered in this study was the health and safety of women in construction in the form of the provision of personal protective equipment (PPE) and sanitary facilities to female workers. This specific focus is largely overlooked. The study explored, female workers’ (end-user) perceptions and experiences on the provisions of sanitary and personal protective equipment through a qualitative approach. The main source of data collection was through semi-structured interviews and further supported with site observations in order to triangulate the interview responses. The results of the study found that the availability of PPE for females in the construction industry has improved as women are provided with female size PPE. However, quality and advanced gender sensitive PPE still needs attention. Sanitary facilities at established sites are generally up to standard. However, female workers still share these facilities with their male counter parts. Sanitary facilities at unestablished sites still need attention.