1. Ph.D. Candidate, Dept. of Construction Economics and Management, Technical Univ. of Berlin, Gustav-Meyer-Allee 25, Berlin 13355, Germany (corresponding author). ORCID: .
2. Professor, Faculty of Engineering, Isra Univ., P.O. Box 33, Amman 11622, Jordan.
3. Professor, Dept. of Construction Economics and Management, Technical Univ. of Berlin, Gustav-Meyer-Allee 25, Berlin 13355, Germany.