Robert L. Peurifoy was Professor Emeritus at the University of Texas at Austin. Cliff Schexnayder (Tempe, AZ) Eminent Scholar Emeritus at Del Webb School of Construction, Arizona State University. Dr. Robert L. Schmitt is a Professor of Civil Engineering at the University of Wisconsin, Platteville Campus. He received his Ph.D. in Civil Engineering from the University of Wisconsin-Madison, Masters Degree in Civil Engineering from Purdue University, and Bachelor Degree in Civil Engineering from the University of Wisconsin-Platteville. Dr. Schmitt has a combined 20 years of construction industry practice, research, and teaching experience. He has managed field-based research projects ranging from determining materials testing and inspection levels on highway construction projects, to improving productivity of field construction operations. He has taught a range of construction engineering courses for 10 years, including project management, costs & estimates, construction equipment, design of construction operations, engineering economic analysis, and senior-level capstone design. Dr. Schmitt is a member of the American Society of Civil Engineers, American Concrete Institute, Association of Asphalt Paving Technologists, and educational member of Associated General Contractors of America. He has been a registered professional engineer for 15 years.