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This study aims to review the zeal exhibited by universities in South Africa towards aligning institutional mandates of teaching, learning, research and community engagement to the sustainable development (SD) agenda. The implementation of the SD agenda across higher education institutions (HEIs) continues to draw attention from the wider society. This is because HEIs are increasingly being looked up to for leadership in this regard. However, although several studies are quick to identify various factors which have driven the adoption of sustainable practices in HEIs, the paucity of studies seeking to identify the drivers for SD implementation remains glaring. This is particularly so in developing countries like South Africa.

To confirm the exploratory data from desktop study on public university engagement with sustainability in South Africa, a single case study was conducted in the Central University of Technology (CUT). The single case study design adopted semi-structured interviews and document reviews as data collection techniques. Purposive snowballing sampling technique was strictly adhered to in the selection of interviewees. Interviewees were selected on the basis of their roles in the implementation of the CUT’s sustainability agenda.

Data emanating from these interviews were analysed thematically using qualitative content analysis. Although a plethora of drivers were identified, there appeared to be a consensus between most of the interviewees that the quest for cost reduction remained the most significant driver for the viable implementation of the sustainability agenda at CUT.

It is expected that findings from this study would provide a platform for the development of effective implementation strategies in South African HEIs. Also, the findings contribute to filing the extant gap observed concerning implementation and drivers for engendering SD implementation in HEIs in sub-Saharan Africa (SSA) region.

By highlighting the drivers for SD implementation, this study contributes to the development of a more receptive social ontology among various stakeholders in an HEI towards the agenda, particularly within the SSA context where there is low level of awareness and buy-in by these stakeholders.

This study makes an original contribution to the research base of SD in HEIs and implementation.

Solar photovoltaic energy is the fastest growing renewable energy in South Africa, and deployment at public universities is critical in order to meet the high energy demand on campuses in a more sustainable manner. To promote and support deployment, it is necessary to know the factors that drive adoption of the technology. Thus, the aim of this study was to identify the factors which engender deployment of photovoltaic energy in public universities in South Africa.

Through an extensive literature review, the factors which drive photovoltaic energy deployment were identified and a three round Delphi survey was conducted for panellists to rate the drivers. The data were analysed using SPSS Version 27, and the mean and inter-quartile range values were used to identify the significant drivers within the public university sector.

The findings suggested that the deployment of photovoltaic energy is engendered by the direct and indirect benefits, social influences and the relative advantage of photovoltaic energy usage. For instance, universities install photovoltaic energy because of the financial gains that are made through reduction of energy cost. The deployment is also motivated by the reduction of energy-related greenhouse gases, enhancement of university sustainability performance, and the contribution to the Sustainable Development Goals.

A significant contribution to the body of knowledge regarding the drivers of photovoltaic energy deployment has been made in the paper from the perspective of a public university. The contribution fills the knowledge gap in South Africa by contributing valuable information to enable decision-makers to gain better understanding of the key issues that call for more attention in promoting and supporting photovoltaic energy deployment in the sector.

The deployment of solar photovoltaic (PV) in higher education institutions is beneficial and critical for attaining sustainable campus goals. However, various barriers hamper the adoption of the technology, and unless these challenges are identified, formulating tailor made solutions to boost deployment will be challenging. Thus, this study aimed to identify the barriers to the deployment of PV in the public university sector in South Africa.

A critical review of the literature was conducted to identify the factors that negatively impact PV deployment. By screening the barriers identified from the literature using a conceptual framework, the barriers that were considered relevant to deployment within a university context were selected. Thereafter, the selected barriers and additional barriers recommended by panellists were verified through a three-round Delphi survey. The factors were either accepted or rejected as barriers in the sector based on the factors' mean score and interquartile range values.

The study observed that 12 barriers hamper PV deployment in the public university sector. The findings indicated that the top five barriers were the lack of incentives, lack of green building targets, lack of financial resources, high initial cost, and lack of clear policy direction. However, the study found that deployment was not hindered because there was resistance to change or uncertainty of recouping investment costs. The deployment was also not hindered because there was a lack of demand from electricity end-users or a lack of suitable installation space.

Given the lack of empirical studies on the subject in the region, the present study contributes to the body of knowledge by identifying the significant barriers that impede PV deployment in the public university sector. Furthermore, insight is provided on measures that relevant stakeholders can take to motivate and support universities to deploy the technology further.

Despite “decent work” being pertinent, as situated in the International Labour Organisation's “Decent Work Agenda”, one of its substantive elements on the need for safe work environments remains a concern for semi-skilled construction workers. Evidently, sustainability learning objectives within this element must be identified and implemented as a remedy. Therefore, the aim of the reported study was to reveal sustainability learning objectives that are significant towards attaining safe work environments, through also assessing statistically significant differences due to demographic variables.

The design of this research followed a quantitative questionnaire survey strategy to obtain insights from semi-skilled workers and site/project managers in Zimbabwe.

Knowledge of relevant prevention strategies to foster positive physical and mental well-being in the workplace was considered the most critical sustainability learning objective. Semi-skilled workers revealed the most interest in objectives that affected their socio-economic beings while site/project managers preferred those that had more economic value to the organisations they work for. Educational levels are also critical when instituting any training interventions.

The absence of a database for semi-skilled workers was a limitation towards achieving the practical significance of the findings. Due to semi-skilled workers significantly contributing to unsafe work environments, structured on-the-job training schemes that are sufficiently planned, monitored and controlled are recommended.

The determination of sustainability learning objectives for construction semi-skilled workers, through on-the-job training schemes, will contribute to the improvement of safe work environments.

The purpose of this paper is to propose a model for operationalizing the integrated use of lean and sustainability concepts for infrastructure delivery. This model is premised on the need for the attainment of a sustainable built environment through efficient infrastructure delivery.

A case study research design was used in assessing five purposively selected cases within Gauteng province in South Africa. These facilities attained Green Building Council of South Africa ratings of 5- to 6-star, for the rating of green buildings and available evidence of integration of lean principles at the developmental stage. Questionnaires were administered to project’s role-players and semi-structured interviews were conducted with the users and facility managers, in order to elicit data for the model development. Questionnaire survey was adopted for the model validation.

The lean-sustainability platform for infrastructure delivery demonstrates features such as resources, drivers, barriers, activities, outputs, the results, and the ultimate impact. The findings give insight into various components of the model. It validates its robustness and highlights leadership among other critical factors necessary for successful operationalization of the lean-sustainability ethos required to transform the delivery of infrastructure.

The developed model provides a transformational route for achieving infrastructure sustainability. The lean-sustainable indicators identified will serve as evaluation tools for assessing lean-sustainability ethos during the delivery phases of infrastructure projects.

The model provides a new way of thinking about infrastructure project delivery regarding the need to promote sustainability in the built environment.

The need to adopt sustainable construction (SC) practices in project activities will be appreciated when clear benefits are known to the stakeholders in Ghana. The purpose of this study was to evaluate the perceived benefits of using SC practices in building projects.

A modified Delphi method (MDM) was used to solicit the views of an expert panel on 33 benefits identified from the literature and validated by a pilot panel to ensure robustness. Statistical tools were used to analyse the data collected. The comparative analysis among the expert panel lends credence to the strong consensus reached on the 26 benefits of SC. The consensus reached by the expert panel after the three rounds were validated using the median and important scale of 70% response rate and above.

The essential benefits included the ability to enhance efficiency and improve the overall quality of life for all. Factors such as mandatory government policies and regulations are recommended as essential drivers to promote and sustain the implementation of SC in Ghana. The findings will enhance the drive for sustainability practices in construction projects in Ghana.

The study contributes to the body of knowledge regarding the benefits of SC from the perspective of experts in the Ghanaian construction industry. The paper would enhance stakeholders understanding the critical benefits of promoting and adopting SC practices in building projects.

The purpose of this article is to determine safety culture indicators that can improve the health and safety performance of small and medium-sized enterprise (SME) contractors in Ghana.

A three-round Delphi method was used. The first round consisted of 31 experts out of which 18 of them rated their agreements with a set of 87 potential safety culture indicators using a 10-point Likert scale of importance (1 = important and 10 = very important) and the 16 experts who completed the final round were given the opportunity to suggest other indicators. The 87 indicators were categorised into 14 core health and safety elements. Indicators that attained a group median value of 5–10 for 50% or more expert ratings were accepted.

At the end of the third round, a consensus was reached on the indicators when they attracted median scores of 5–10 for at least 50% or more of the health and safety experts rated the indicators between 5 and 10. Out of a total of 87 indicators at the start of the Delphi process, the consensus was reached on 70 that were retained.

The health and safety experts were not given the opportunity to add new indicators to the structured questionnaire until the third round.

This is the first study, to the best of the authors’ knowledge, to have a consensus by health and safety experts on leading indicator metrics of positive culture of construction safety in Ghana for improved SME construction company’s health and safety performance in Ghana. If these indicators are adopted and used effectively in Ghana, they would ensure positive culture of construction safety and subsequently help to protect construction workers.

Arguments for the design of sustainable university buildings have emerged in South Africa. Energy being a major determinant of the sustainability of buildings, the purpose of this study was to examine the influence of various building and indoor environmental parameters on the energy performance of university buildings in South Africa.

A quantitative survey research method, administered within the context of university buildings in South Africa, was used. Data about 16 buildings from three universities were collected. Relevant, inferential statistical analyses were conducted to examine the relative influence of the building parameters on the energy consumed in the buildings. Also, regression models within building parameters were developed independently and in a combination that could be used to estimate energy consumption in the university buildings.

Findings suggested that building and indoor environmental parameters of humidity, indoor temperature, volume, illumination, and window width ratio (WWR), in that order, influenced energy consumption significantly, and also, had direct empirical relationships.

Optimising the building and indoor environmental parameters in design will enhance energy-efficiency in university buildings in South Africa.

This study contributes to the literature in terms of understanding the order of influence of building parameters on energy consumption in university buildings in the temperate climatic zone of South Africa. It also established empirical models between building and indoor environmental parameters and energy consumption, both independently and in combination, that could assist in designing energy-efficient and sustainable university buildings.

The built environment is well known for carbon emission and its impact especially as it pertains to existing buildings. This has culminated in an increasing need for a retrofit of such buildings. This study details the development of an artefact for improving the delivery of energy retrofit projects therein to curb these impacts.

The study utilized a mixed method research design for data collection. In achieving this, data was collected in three different phases; (1) a pilot study; (2) a juxtaposition of desktop case studies, live case studies, focus group discussion forum and an expert survey; and (3) a questionnaire survey for the validation of the emergent artefact. Accordingly, the quantitative data was analysed using descriptive statistics, whereas qualitative content analysis was deployed for qualitative data.

The findings enabled an identification of the elements of a building energy retrofit project (BERP) such as project initiation, building assessment, detailed energy survey, technical analysis and implementation plans of energy measures, monitoring and verification. Also, it provided the challenges and enablers associated with successful BERP. This information was subsequently utilized in the development and validation of an artefact for delivering successful BERP. Summarily, a set of guidelines comprising of seven stages for managing successful BERPs were elucidated.

The validated artefact provides an adaptive and innovative route for achieving sustainability in retrofit trade.

The study conceptualizes an artefact for improving the delivery of BERPs.