1. Ph.D. Student, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
2. Postdoctoral Research Associate, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
3. Associate Professor, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
4. Dept. of Industrial Engineering, Univ. of Texas at Arlington, Arlington, TX.
5. Assistant Professor, Dept. of Civil and Environmental Engineering, California Polytechnic State Univ., CA.