1. Assistant Professor, Dept. of Civil and Environmental Engineering, Northeastern Univ., 400 Snell Engineering Center, 360 Huntington Ave., Boston MA 02115 (corresponding author). E-mail: lucac@coe.neu.edu
2. Professor and Dean, G. W. C. Whiting School of Engineering, Johns Hopkins Univ., 3400 N Charles St., Baltimore, MD 21218. E-mail: npjones@jhu.edu