1. Assistant Professor, Dept. of Civil Engineering, Univ. of Texas at El Paso, 500 W. University, El Paso, TX 79968 (corresponding author).
2. Research Assistant, Dept. of Civil Engineering, Univ. of Texas at El Paso, 500 W. University, El Paso, TX 79968.
3. Associate Professor, Dept. of Industrial, Univ. of Texas at El Paso, Manufacturing and Systems Engineering, 500 W. University, El Paso, TX 79968.
4. Associate Professor, Dept. of Industrial, Manufacturing and Systems Engineering, Univ. of Texas at El Paso, 500 W. University, El Paso, TX 79968.