[1] Fed Univ Technol Akure, Dept Quant Surveying, Res Grp Sustainable Infrastructure Management Plus, Akure 340110, Nigeria
[2] Univ Georgia, Engn Educ Transformat Inst, Coll Engn, Athens, GA 30602 USA
[3] Univ Johannesburg, Fac Engn & Built Environm, Cidb Ctr Excellence, ZA-2092 Johannesburg, South Africa
[4] Birmingham City Univ, Coll Built Environm, Birmingham B4 7XG, England
[5] Fed Univ Technol Akure, Dept Quant Surveying, Akure 340110, Nigeria
[6] Univ Johannesburg, Fac Engn & Built Environm, Dept Civil Engn Technol, ZA-2092 Johannesburg, South Africa