1. MSc, Dept. of Civil and Environmental Engineering, Washington State Univ., Pullman, WA 99164-2910.
2. Associate Professor, PhD, Dept. of Civil and Environmental Engineering, Washington State Univ., Pullman, WA 99164-2910.
3. Assistant Professor, PhD, Texas Transportation Institute, Texas A&M Univ., College Station, TX 77843-3135.