1. School of Economics and Management, Chang’an University, Xi’an, Shaanxi, P.R. China
2. School of Civil Engineering, Chang’an University, Xi’an, Shaanxi, P.R. China
3. Departamento de Proyectos de Ingeniería, Universitat Politècnica de València, Valencia, Spain
4. School of Built Environment, University of Technology Sydney, Sydney, Australia
5. School of Electronic and Control Engineering, Chang’an University, Xi’an, Shaanxi, P.R. China
6. Quantity Surveying and Construction Management, Faculty of Society & Design, 3_2_11, Bond University, Robina, Australia