1. Ph.D. Student, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
2. Associate Vice Chancellor and Associate Dean of Research, Pennsylvania State Univ., State College, PA.
3. Professor, Dept. of Industrial Engineering, Univ. of Texas at Arlington, Arlington, TX.
4. Assistant Professor, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.