1. Professor, Dept. of Civil and Environmental Engineering, Seoul National Univ., 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea (corresponding author).
2. Senior Lecturer, Center for Infrastructure Engineering, School of Engineering, Western Sydney Univ., Locked Bag 1797, Penrith, NSW 2751, Australia.
3. Associate Professor, Dept. of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulju-gun, Ulsan 44919, South Korea.
4. Assistant Professor, School of Architecture, Syracuse Univ., 900 South Crouse Ave., Syracuse, NY 13244.