1. Planning and Scheduling Manager, Dar Al-Mimar Group, 36 Nehro St., Heliopolis, Cairo 11757, Egypt.
2. Associate Professor, Dept. of Structural Engineering, Cairo Univ., Giza 12613, Egypt (corresponding author).
3. Senior Lecturer, School of Property, Construction and Project Management, RMIT Univ., GPO Box 2476, Melbourne, VIC 3001, Australia; Associate Professor, Dept. of Structural Engineering, Cairo Univ., Giza 12613, Egypt.