1. Ph.D. Student, Dept. of Civil and Resource Engineering, Dalhousie Univ., Halifax, NS, Canada B3H 4R2.
2. Associate Professor, Ivan Curry School of Engineering, Acadia Univ., Wolfville, NS, Canada B4P 2R6 (corresponding author).
3. Associate Professor, Dept. of Civil and Resource Engineering, Dalhousie Univ., Halifax, NS, Canada B3H 4R2.