1. School of Built Environment, University College of Estate Management, Reading RG1 4BS, UK
2. Faculty of Arts and Human Sciences, British University in Egypt, Cairo 11837, Egypt
3. Built Environment Department, School of Art, Design and Architecture, University of Plymouth, Plymouth PL4 8AA, UK
4. Engineering & The Built Environment, University of Johannesburg, Auckland Park Kingsway Campus, Johannesburg 2092, South Africa
5. Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong, China