1. Research Associate, Louisiana Transportation Research Center, Louisiana State Univ., Baton Rouge, LA 70808.
2. Research Associate Professor, Louisiana Transportation Research Center, Louisiana State Univ., Baton Rouge, LA 70808 (corresponding author).
3. Senior Geotechnical Engineer, Louisiana Dept. of Transportation and Development, Baton Rouge, LA 70804.
4. Senior Geotechnical Engineer Specialist, Louisiana Dept. of Transportation and Development, Baton Rouge, LA 70804.
5. Pavement and Geotechnical Engineering Administrator, Louisiana Transportation Research Center, Louisiana State Univ., Baton Rouge, LA 70808.