Funding for this research was provided by:
National Research Foundation (Grant No. (UID) 85376)
Received: 22 June 2018
Accepted: 5 October 2018
First Online: 24 October 2018
Ethics approval and consent to participate
: Ethical clearance was obtained from the Ethics Committee, Faculty of Engineering and the Built Environment at the University of Cape Town. The Ethics Committee was provided with a copy of the online questionnaire. Potential participants were briefed on the nature of the study and assured that all responses would remain entirely anonymous and confidential. Submission of the online questionnaire (in part or in full) was deemed to constitute informed consent to participate in this study. No information that could distinguish individual participants was collected during the data collection process.
: Not applicable.
: The authors declare that they have no competing interests.
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