1. Professor, Dept. of Civil and Environmental Engineering, Univ. of California at Berkeley, Berkeley, CA 94720-1710.
2. Doctoral Candidate, Dept. of Civil and Environmental Engineering, Univ. of California at Berkeley, Berkeley, CA 94720-1710.
3. Senior Consultant, Ardaman & Associates, 316 Highlandia Dr., Baton Rouge, LA 70810.