1. Research Development Center of Construction Law, D204,5, Lane 199, Kinghua Street, Taipei 10650, Taiwan; Department of Civil Engineering, Tamkang University, No. 151, Ying-Chuan Road, Tamsui, Taipei County, Taiwan
2. Department of Construction Management, Curtin University, Australia
3. School of Built Environment, Curtin University, Australia
4. Department of Civil and Environmental Engineering, University of Maryland, College Park, USA