Nutritional knowledge as well as economic, social, biological, and cultural factors have been known to determine an individual's food choices. Despite the existence of research on the factors which influence nutrition globally, there is little known about the extent to which these factors influence the food choices of construction workers, which in turn influence their health and safety during construction activities. The present article investigates the extent to which construction workers' nutrition is influenced by nutritional knowledge, as well as economic, environmental, social, psychological, and physiological factors. A field questionnaire survey was conducted on site construction workers in the Gauteng Province of South Africa. Principal components analysis and multiple regression analysis were used to analyze the data. Findings revealed that consumption of foods termed alternative foods including dairy products, eggs, nuts, fish, and cereals, was influenced by nutritional knowledge and resources. Foods termed traditional core foods were influenced by cultural background; foods termed secondary core foods comprising fruits and vegetables were influenced by economic factors, resources, and cultural background; while foods termed core foods were mostly influenced by nutritional knowledge. By providing evidence of the factors which most influence selection and consumption of certain foods by construction workers, relevant nutrition interventions will be designed and implemented, taking cognizance of these factors.

PurposeBuilding information modelling (BIM) has had a significant impact on the architecture, engineering and construction (AEC) sector in the past several years. However, not much is published concerning small and medium-sized enterprises (SMEs) adopting BIM in the construction industry. To address this knowledge gap, a complete and in-depth literature review of the adoption of BIM by SMEs in the AEC sector is conducted in this study. The paper also provides a comprehensive review of the mainstream studies of adoption of BIM in the AEC organisations.Design/methodology/approachBased on a five-stage literature review, 54 articles on the adoption of BIM by SMEs from the period 2009 to 2019 were critically analysed from the following three perspectives: (1) the number of articles produced; (2) the research focus and (3) the author's contributions. The techniques of the visualisation of similarities (VOSviewer) software were used to analyse the citation networks of the 54 articles as identified.FindingsFrom the analysis, it was established that the number of studies on BIM adoption by SMEs in the reviewed journals has not been increasing and not many articles are available. The finding makes the argument that BIM adoption by SMEs is not a focus point but rather the adoption and implementation of BIM is generalised in the AEC sector. In addition, the results revealed that most of the published articles come from the United Kingdom (UK). However, this finding is hardly surprising due to the requirements in the UK, which have made the adoption of BIM mandatory on all publicly funded projects and are at level 2 BIM. The other highly ranked countries by origins of studies on the adoption of BIM by SMEs were found to be Australia and the United States of America (USA), all of which are developed nations or economies. Some key BIM in SME research trends (adoption, enforcement, benefits, strategies, skills gap, awareness, education and training, and technology) were identified and evaluated.Research limitations/implicationsThe results presented in this journal are only applicable to SMEs in the AEC sector. As a result of little available literature on the adoption of BIM in developing countries, the articles have been drawn from developed countries. The dataset was mainly extracted from the Scopus database for the analysis.Originality/valueAn accomplished series content analysis of the implementation and adoption of BIM by SMEs from international construction journals were reported. The study makes significant and emergent contribution by building on the foundation of BIM research in SMEs as well as providing a reference point for the interpretation of findings, as well as directions for future research.

Purpose -The purpose of this paper is to present findings of research on the level of health and safety (H&S) awareness and implementation in Botswana's construction industry. Design/methodology/approach -A questionnaire survey was conducted on construction projects to establish the level of awareness and implementation of construction H&S. Physical observations were also conducted on construction sites in order to relate questionnaire responses to what actually obtained on construction sites. The study was limited to Gaborone and the immediate surrounding areas. Findings -Findings from the research reveal that the level of H&S awareness is low, H&S legislation is not complied with, the management of contractors is not committed to H&S implementation, there is a lack of H&S management systems, procedures, and protocol, and clients and designers do not participate in the implementation of H&S. Originality/value -The importance of construction H&S has been recognised by various researchers. This paper provides an insight on the level of awareness and implementation of H&S in Botswana's construction industry and should be viewed in the context of an effort to improve H&S.

The fourth industrial revolution (4iR) technologies offer an opportunity for the construction industry to improve health and safety (H&S) compliance. Therefore, implementing the technologies is of top priority to improve the endless H&S incidents in construction projects, which lead to poor quality of work, late project delivery, and increased labour injury claims. Central to improving the nature of work and other industrial processes, the 4iR technologies have emerged. Concurrent with this trend is the importance of 4iR technologies in enhancing health and safety performance on construction sites. However, the implementation of 4iR technologies in the construction industry is faced with various challenges. Therefore, this paper reports on a study aimed at examining the challenges associated with implementing 4iR technologies in the construction sector in South Africa towards effective management of H&S. The study followed a systematic literature review, data collection using a questionnaire survey and thereafter, descriptive, and inferential analyses were conducted. The findings revealed that the implementation of 4iR technologies is challenged by a lack of adequate relevant skills, the unavailability of training capacities, expensive technologies, and negative perceptions such as fear of job loss by industry professionals. The findings are essential for the advancement of H&S research and implementation. In addition, the findings are important to industry decision-makers in order to elevate their awareness and promote the use of 4iR technologies to manage construction activities. The study implications include the need for the construction industry to collaborate with higher education institutions to conduct research and include 4iR in the curriculum.

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The job description of asset and facilities managers continue to evolve. The future roles of facilities managers is somewhat a concern, given the trend and progression of innovative technologies in recent times. This study sought to evaluate the perceptions of built environment practitioners, involved in management of infrastructure during operations, regarding the influence of technological innovation on the future roles of facilities managers in terms of sustainability. An interview guide was used to solicit information regarding the future roles and responsibilities of facilities managers. The interviews were conducted with five facilities management practitioners selected purposively and conveniently based on knowledge, willingness and ability to participate in the study. Themes on the influence of innovation on facilities management practice and future adaptive roles of facilities management were evinced. These findings are envisaged to be useful in developing new strategies and directions to equip and accord facilities managers with the necessary techniques to adapt in this ever-changing era of technology and innovation.