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Doctoral Degrees (Construction Management)

Permanent URI for this collectionhttps://hdl.handle.net/10413/13213

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Browsing Doctoral Degrees (Construction Management) by Subject "Economic growth."

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    Assessing South African public sector maturity to implement the infrastructure delivery management system (IDMS).
    (2020) Chigangacha, Progress Shingai.; Haupt, Theodore Conrad.; Awuzie, Bankole Ositadinma.
    Infrastructure is the fulcrum of a strong economy. It can be considered as the backbone of every economy as it directly impacts on some elements of expansive socio-economic development which contribute to economic growth and development thereby increasing societal value and quality of life. Undoubtedly, infrastructure is critical and a prerequisite for economic growth and power. Likewise, the paucity of and lack thereof of adequate infrastructure impedes national growth and development. For most developing countries, there are large infrastructural deficits and the infrastructure gap is large, with infrastructure delivery being characterized by slow progress and development. South Africa too is fraught with a myriad of challenges affecting infrastructure delivery and this has seen the South African government prioritizing and scaling up expenditure on infrastructure to support its economic growth and development plans. In recent years, the South African government has made remarkable progress to support its economic growth and development plans and introduced recent enabling legislation and guidelines, in the process reducing poverty and inequality. However, it is still plagued with tremendous backlogs and shortfalls due to considerable bottlenecks, as a result of several systemic challenges that inhibit the effective delivery of infrastructural installations, the causes of which have not necessarily been identified or understood. Furthermore, there is severe persistence of infrastructure challenges facing the South African landscape despite numerous government interventions to scale up infrastructure delivery. The Infrastructure Delivery Management System (IDMS), a government model formulated to ameliorate infrastructure delivery has not been adequately utilized so as to achieve its full effectiveness and efficiency. This could potentially be emanating from deficiencies in institutional capacities and capabilities and the lack of organizational readiness to utilize this model. Suffice to note is the reality that the challenges of infrastructure in South Africa are not primarily attributed to lack of funding but are as a result of institutional failures and a lack of requisite capacity within the Public sector Against this background, this study aimed primarily to develop and validate a maturity model for assessing and improving public sector organizations’ readiness for effective IDMS implementation. Upon model development and validation, the study assessed the maturity of provincial government departments in engaging with the extant IDMS and it formulated evidence based interventions to improve delivery and management of infrastructure projects. This was achieved through analysis of data obtained from the use of a nine-dimension Maturity Modelling Questionnaire and semi-structured Interviews. The results obtained were used to indicate Organizational Maturity on a 5-level scale where Level 1 is the initial/adhoc level which is indicative of a regressive organization with a complete lack of attributes and Level 5 is indicative of an optimized organization with world class attributes. An IDMS ready organization would ideally have a maturity rating at level 5. This study found that all three organizations that were surveyed had a maturity rating 3
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    Improved water infrastructure delivery and management model.
    (2020) Nkwonta, Onyeka Ifeanyi.; Haupt, Theodore Conrad.
    ENGLISH ABSTRACT: Water plays a vital role in poverty reduction, economic growth, business competitiveness and enhancement of societal living in developing countries in particular. Provision of infrastructure involves a complex process and utilizes considerable amount of resources including construction materials, energy, finance and time. Infrastructures have long life span and they could create long-term impact on the environment and society. To achieve efficient and equitable economic growth of economy is an important way of managing water. Better access to sanitation services, clean water and water management creates tremendous strategy for economic growth of any country. There is a close link between water and economic growth of country. Water Mangement brings more efficiency and certainty in productivity across the health of nation and contributes to economic. Water is a critical part of most environmental services on which our ecosystems depend. Water requires optimal management to control competition for use due to population growth and scarcity, climate change, increasing demand and declining water supplies. This research has attempted to develop a model for improving the delivery of water services in developing countries such as South Africa. The model lays a foundation for development of appropriate policies, regulations and procedures to improve water service delivery at EThekwini municipality. A triangulation approach was employed to develop the model using Delphi method and a structured questionnaire survey. The Delphi study involved three rounds with ten experts participating in all rounds until consensus was achieved. After the Delphi study, a conceptual model was developed and validated using data collected from experienced professionals that deals with water infrastructures at EThekwini metro. The data collection was based on convenience sampling where 306 questionnaire were distributed and 210 complete responses were received. Exploratory factor analysis (EFA) using Statistical Package for the Social Sciences (SPSS) and Maximum Likelihood with Promax rotation were used to determine the validity and reliability of the nine constructs of the conceptual model. Confirmatory factor analysis (CFA) was conducted using AMOS, software program to further test validity and reliability of constructs. The findings revealed that the structural model data was acceptable and eight out of eight hypotheses tested were significant. The findings of this research indicates that stakeholders in Civil Engineering and construction industry have to improve their delivery practice in order to deliver good water services in the context of developing countries such as South Africa and also the work has contributed to the evolving current body of knowledge in the area of Water management and delivery. ISIZULU ABSTRACT: Amanzi adlala indima ebalulekile ekwehliseni ubuphofu, ukukhula komnotho, ukuncintisana kwamabhizinisi kanye nokwenza ngcono impilo yomphakathi emazweni asathuthuka ikakhulukazi. Ukuhlinzekwa kwengqalasizinda kubandakanya inqubo eyinkimbinkimbi futhi kusebenzisa inani elikhulu lezinsizakusebenza kubandakanya izinto zokwakha, amandla, ezezimali kanye nesikhathi. Ingqalasizinda inesikhathi eside sokuphila futhi ingadala umthelela wesikhathi eside emvelweni nasemphakathini. Ukuphatha amanzi njengenzuzo yezomnotho kuyindlela ebalulekile yokuthola ukukhula komnotho okusebenzayo futhi okulinganayo. Ukutholakala okungcono kwamanzi ahlanzekile, izinsizakalo zokuthuthwa kwendle nokuphathwa kwamanzi kudala isu elikhulu lokukhula komnotho wezwe. Kukhona ukuxhumana okusondele phakathi kwamanzi nokukhula komnotho wezwe. Ukuphathwa kahle kwezinsizakusebenza zamanzi kuletha ukuqiniseka okuthe xaxa nokusebenza kahle komkhiqizo kuyo yonke imikhakha yezomnotho futhi kuneqhaza empilweni yesizwe. Amanzi ayingxenye ebalulekile yezinsizakalo eziningi zemvelo lapho imvelo yethu incike khona. Amanzi adinga ukuphathwa okuphelele ukulawula ukushoda nokuncintisana kokusetshenziswa ngenxa yokwanda kwabantu, ukwanda kwesidingo, ukuguquka kwesimo sezulu kanye nokwehla kokuphakelwa kwamanzi. Lolu cwaningo luzame ukusungula imodeli yokwenza ngcono ukulethwa kwezinsizakalo zamanzi emazweni asathuthuka njengeNingizimu Afrika. Le modeli ibeka isisekelo sokwakhiwa kwezinqubomgomo, imithethonqubo kanye nezinqubo ezifanele zokuthuthukisa ukulethwa kwezidingo kumasipala weTheku. Kwasetshenziswa indlela yoonxantathu ukuthuthukisa imodeli kusetshenziswa indlela yeDelphi kanye nocwaningo lwemibuzo oluhleliwe. Ucwaningo lweDelphi lubandakanye imizuliswano emithathu nochwepheshe abayishumi ababambe iqhaza kuyo yonke imizuliswano kuze kutholakale ukuvumelana. Ngemuva kocwaningo lwaseDelphi, kwasungulwa imodeli yokuqagela yaqinisekiswa ngokusebenzisa imininingwane eqoqwe kochwepheshe abanolwazi ababhekene nengqalasizinda yamanzi kuMasipala weTheku. Ukuqoqwa kwedatha kwakususelwa kusampula elula kwakukhona imibuzo yemibuzo engama-306 nokusatshalaliswa izimpendulo eziphelele ezingama-210. Ukuhlaziywa kwesici sokuhlola (i-EFA) kusetshenziswa inguqulo ye- Statistical Package yeSayensi Yezenhlalakahle (SPSS) kusetshenziswa Ubukhulu obukhulu ngokushintshana kwePromax kusetshenziselwe ukuthola ubuqiniso nokwethembeka kokwakhiwa okuyisishiyagalolunye kwemodeli yomqondo. Ukuhlaziywa kwesici sokuqinisekisa (i-CFA) kwenziwa ngokusebenzisa i-, uhlelo lwesoftware ukuqhubekisela phambili ukuvivinya ubuqiniso nokwethembeka kokwakhiwa. Okutholakele kuveze ukuthi idatha yemodeli yokwakhiwa yamukelekile futhi yonke imicabango eyi-9 ehlolwe ibalulekile. Okutholwe yilolu cwaningo okubandakanya ukunikela okusebenzayo, okwezemfundo Kanye nokwenziwa kwemigwaqo kunomthelela omkhulu ekuthuthukisweni kolwazi lwamanje endaweni yokuthuthukisa ukulethwa kwezinsizakalo zamanzi emazweni asathuthuka njengeNingizimu Afrika.