1. Faculty of Sciences, Engineering and Health, Central Queensland Univ., Rockhampton, QLD 4701, Australia; formerly Ph.D. Candidate, Dept. of Building, School of Design and Environment, National Univ. of Singapore, 4 Architecture Drive, Singapore 117566, Singapore (corresponding author).
2. Professor, Dept. of Building, School of Design and Environment, National Univ. of Singapore, 4 Architecture Drive, Singapore 117566, Singapore.