Okan Sirin is a Professor of Civil Engineering at Qatar University. He earned his Master of Science degree in Civil Engineering from the University of Illinois at Urbana-Champaign, USA, in 1996, and received a Ph.D. in Civil Engineering from the University of Florida, USA, in 2000. With over twenty years of experience in pavement materials, his research interests include asphalt aging, bituminous materials, accelerated pavement testing, and pavement management. He is an editorial board member of Advances in Civil Engineering journal.