1. Associate Professor, Dept. of Civil Engineering, City College of the City Univ. of New York, New York, NY 10031 (corresponding author).
2. Civil Engineer II, New York State Dept. of Transportation, Transportation R&D Bureau, Albany, NY 12232.
3. Regional Design Engineer, New York State Dept. of Transportation, Region 7, Watertown, NY 13601.
4. Field Engineer, New York State Department of Transportation, Materials Bureau, Albany, NY 12232.