1. Postdoctoral Associate, Dept. of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 (corresponding author).
2. Ph.D. Candidate, Civil and Environmental Engineering, City College of New York, New York, NY 10031.
3. Professor, Civil and Environmental Engineering, City College of New York, New York, NY 10031.
4. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, ATLSS Center, Lehigh Univ., Bethlehem, PA 18015.
5. Ph.D. Candidate, Civil and Environmental Engineering, Purdue Univ., West Lafayette, PA 47907.
6. Professor, Civil and Environmental Engineering, Purdue Univ., West Lafayette, PA 47907.
7. Professor, Dept. of Civil and Environmental Engineering, ATLSS Center, Lehigh Univ., Bethlehem, PA 18015.