1. Student Researcher, Dept. of Civil and Environmental Engineering, Univ. of Auckland, Private Bag 92019, Auckland 1142, New Zealand (corresponding author).
2. Research Fellow, Dept. of Civil and Environmental Engineering, Univ. of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
3. Arts Centre Project Director, Holmes Consulting Group, P.O. Box 6718, Christchurch 8442, New Zealand.
4. Professor, School of Civil, Environmental and Mining Engineering, Univ. of Adelaide, Adelaide 5005, Australia.
5. Professor, Dept. of Civil and Environmental Engineering, Univ. of Auckland, Private Bag 92019, Auckland 1142, New Zealand.