1. Senior Researcher, Korea Highway Corporation, 50–5, Sancheok-ri, Dongtan-myeon, Hwaseong-si, Gyeonggi-do 445–812, KR (Corresponding author), e-mail: seoyg89@ex.co.kr
2. Ph.D. Senior Researcher, Korea Institute of Construction Technology, Goyang, KR.
3. Ph.D., Distinguished Univ. Professor, Alumni Distinguished Graduate Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., Raleigh, NC 27695, US.