[1] Univ Toronto, Dept Civil & Mineral Engn, 35 St George St, Toronto, ON M5S 1A4, Canada
[2] West Virginia Univ, Wadsworth Dept Civil & Environm Engn, 1374 Evansdale Dr, Morgantown, WV 26506 USA
[3] Purdue Univ, Agr Econ, 403 West State St, W Lafayette, IN 47907 USA
[4] Purdue Univ, Dept Publ Hlth, 812 W State St, W Lafayette, IN 47907 USA
[5] Purdue Univ, Lyles Sch Civil Engn, 550 Stadium Mall Dr, W Lafayette, IN 47907 USA