1. School of Architecture, Technical University of Crete, 73100 Chania, Crete, Greece
2. Discipline of Civil Engineering, University of KwaZulu Natal, Durban 4041, South Africa
3. Discipline of Civil Engineering, University of Central Lancashire, Preston PR1 2HE, UK
4. School of Production Engineering & Management, Technical University of Crete, 73100 Chania, Crete, Greece