A holistic assessment of construction and demolition waste management in the Nigerian construction projects
- Authors: Aboginije, Ademilade , Aigbavboa, Clinton , Thwala, Wellington
- Date: 2021
- Subjects: Construction industry , Construction and demolition waste , Exploratory factor analysis
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/478597 , uj:43259 , Citation: Aboginije, A.; Aigbavboa, C.; Thwala,W. A Holistic Assessment of Construction and Demolition Waste Management in the Nigerian Construction Projects. Sustainability 2021, 13, 6241. https://doi.org/ 10.3390/su13116241
- Description: Abstract: This study provides a holistic assessment of the current waste management strategies implemented in Nigerian construction projects. The data used in this study were collected from both primary and secondary sources. The primary data were collected through survey questionnaires distributed via emails of the targeted respondents who are construction professionals in the study area of Lagos metropolis, while the secondary data were collected via the review of related literature. Out of the 200 questionnaires distributed, only 168 valid forms were retrieved. The collected data accounted for 84% of the entire survey and were suitable for the analysis. An exploratory factor analysis was conducted while the reliability of the research survey instrument was tested using Cronbach’s alpha coefficient reliability. The result indicated that the waste management strategies were clustered into three groups, comprising practical legal framework and modular construction, sustainable procurement and material optimisation, and proper construction detailing and design. In conclusion, the waste management strategies implemented in Nigeria were assessed as being “not sustainable enough”. However, it is recommended that there is an upgrading in either the approach or method of application of waste management strategies in order to ensure its sustainability.
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A principal components analysis of safety performance measures: a study among construction workers in Gauteng, South Africa
- Authors: Okoro, Chioma , Musonda, Innocent , Agumba, Justus
- Date: 2016
- Subjects: Construction workers , Exploratory factor analysis , Gauteng
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/216627 , uj:21531 , Citation: Okoro, C., Musonda, I & Agumba, J. 2016. A principal components analysis of safety performance measures: a study among construction workers in Gauteng, South Africa.
- Description: Abstract: The health and safety (H&S) of construction workers has been a subject of much deliberation for decades. However, there is scant literature focusing on aspects of workers’ safety performance (SP) relating to their unhealthy and unsafe eating behavior. The paper presents findings on a principal components analysis (PCA) of H&S performance measures. A 10-item questionnaire which was developed after an extensive literature review was used to collect empirical data on SP of construction workers in the Gauteng Province of South Africa. Results showed that SP could be reasonably measured by two constructs. The two constructs were clearly defined by the PCA as trailing and prevailing. The emerged trailing measures were named lagging indicators while the prevailing ones were designated as leading indicators. The results lend support to extant literature which advocates the use of both leading and lagging safety performance indicators for effectively assessing construction workers’ safety performance. The study provides evidence which could be beneficial in psychometric evaluation of construction workers’ safety performance and behaviours on construction sites.
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Evaluating occupational health and safety management strategy success factors for small-scale contractors in Zambia
- Authors: Mambwe, Mwewa , Mwanaumo, Erastus M. , Thwala, Wellington D. , Aigbavboa, Clinton O.
- Date: 2021
- Subjects: Exploratory factor analysis , Management strategy , Occupational health and safety
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/478616 , uj:43261 , Citation: Mambwe, M.; Mwanaumo, E.M.; Thwala,W.D.; Aigbavboa, C.O. Evaluating Occupational Health and Safety Management Strategy Success Factors for Small-Scale Contractors in Zambia. Sustainability 2021, 13, 4696. https://doi.org/10.3390/su13094696
- Description: Abstract: Small-scale contractors (SSCs) require management strategies in implementing occupational health and safety (OH&S) performance at projects to reduce accidents, injuries, fatalities and diseases. Management strategy success factors have been acknowledged to be of great benefit in improving in OH&S performance. Hence, the study sought to assess the management strategy success factors for the improvement of OH&S performance by SSCs in Zambia’s electricity industry. Using quantitative methods, data was collected using a survey questionnaire from 246 respondents representing firm owners, managers, project managers and OH&S representatives at electricity industry projects at 70.3% response rate. Descriptive and inferential statistics were adopted as methods of data analysis using exploratory factor analysis. After analysis, the success factors were clustered into three construct categories within OH&S performance namely, compliance and workplace processes, policy and human resource development, and leadership and structure significant values ranging from 0.513 to 0.972. The independent reliability was tested using the Cronbach Alpha coefficient. The study exposed management strategy success factors are well recognised by most SSCs and contributed to the body of knowledge in this mastery by introducing three success factors for OH&S performance. It is recommended that these factors be adopted and considered to improve OH&S performance management by SSCs in the electricity industry in Zambia.
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Foreign direct investment plans of multinational enterprises currently operating in South Africa
- Authors: Makka, A. M. , Mageto, J. N.
- Date: 2019
- Subjects: Foreign direct investment , Multinational enterprises , Exploratory factor analysis
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/404736 , uj:33956 , Citation: Makka, A.M. & Mageto, J.N. 2019. Foreign direct investment plans of multinational enterprises currently operating in South Africa/
- Description: Abstract: The objective of this study was to examine factors in the South African business environment that influence the foreign direct investment decision-making plans of multinational enterprises in the country. Although studies on foreign direct investment do exist, they have focused primarily on the determinants of foreign direct investment. Relatively little is known about the dynamics of foreign direct investment plans of multinationals already operating in the country. An internet survey was conducted with 76 senior executives from South African multinational enterprises. The findings demonstrate that macroeconomic, political, government policy, labour issues, bureaucracy, red tape, corruption and crime all influence the investment plans of these enterprises. However, despite this evidence, the multinationals do not intend to close down some or all operations in the country within the short term (next 1-3 years). This study expands the body of knowledge on foreign direct investment and multinational enterprises, shedding light on their operations and investment plans in African countries. This research will be useful for policymakers in South Africa as to decision-making by multinationals on foreign direct investment in the country. The study is also a starting point for future research on the dynamics behind foreign direct investment decision-making.
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