[1] McGill Univ, Dept Civil Engn, Room 492,817 Sherbrooke St W, Montreal, PQ H3A 0C3, Canada
[2] Ecole Polytech Montreal, Dept Genies Civil Geol & Mines, CP 6079,Succ Ctr Ville, Montreal, PQ H3C 3A7, Canada
[3] McGill Univ, Sch Urban Planning, Suite 400,815 Sherbrooke St W, Montreal, PQ H3A 2K6, Canada
[4] Univ Sydney, Sch Civil Engn, Room 418,Bldg J05,225 Shepherd St, Darlington, NSW 2006, Australia