1. Assistant Professor, Dept. of Civil Engineering, The Univ. of Akron, Akron, OH 44325-3905 (corresponding author). E-mail: abbas@uakron.edu
2. Associate Professor, Dept. of Civil Engineering, Texas A&M Univ., 3135 TAMU, College Station, TX 77843-3135. E-mail: emasad@civil.tamu.edu
3. Professor and Department Chair, Dept. of Civil and Environmental Engineering, The Univ. of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249-1644. E-mail: AT.Papagiannakis@utsa.edu
4. Pavement and Materials Technical Service Team Leader, Federal Highway Administration Resource Center, 10 South Howard St. Suite 4000, Baltimore, MD 21201. E-mail: tom.harman@fhwa.dot.gov