Mauricio J. Gutierrez Romero is currently pursuing his Master's degree in Civil Engineering at UIUC. He is undertaking research in the area of concrete crossties and fastening systems for heavy haul service in North America. He received his B.S in Civil Engineering from Instituto Tecnologico y de Estudios Superiores de Monterry (ITESM) in Monterry, Mexico in December 2005. Gutierrez Romero, M.J., J. Edwards, C.P.L. Barkan, B. Wilson, J. Mediavilla. Advancements in Fastening System Design for North America Concrete Crossties in Heavy-Haul Service. In Proceedings: AREMA 2010 Annual Conference & Exposition, Orlando, Florida, August 2010.