1. Assistant Professor, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, Ontario M5S 1A4, Canada (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, Ontario M5S 1A4, Canada.
3. M.A.Sc. Candidate, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, Ontario M5S 1A4, Canada.