1. Adjunct Senior Research Fellow, School of Natural and Built Environments, Univ. of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia (corresponding author).
2. Senior Lecturer, School of Natural and Built Environments, Univ. of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia.
3. Assistant Professor, Public Works Engineering Dept., Faculty of Engineering, Mansoura Univ., Mansoura 35516, Egypt.