1. Assistant Professor, Dept. of Civil and Environmental Engineering, Villanova Univ., Villanova, PA 19085 (corresponding author).
2. Senior Project Manager, Opti RTC, Inc., 230 South Broad St., 17th Floor, Philadelphia, PA 19102.
3. Professor, Dept. of Civil and Environmental Engineering, Villanova Univ., Villanova, PA 19085.