1. Graduate Student, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325-3905.
2. Professor, Dept. of Civil Engineering and Dept. of Applied Mathematics, Univ. of Akron, Akron, OH 44325-3905.
3. Professional Engineer, Ohio Dept. of Transportation, 1980 W. Broad St., Columbus, OH 43223.