Vinayak is a Professor in the School of Civil and Environmental Engineering at the University of New South Wales (UNSW). He joined UNSW after serving as the Associate Director of Research for the Gulf Coast Centre for Evacuation and Transportation Resiliency at Louisiana State University. At Louisiana State University he founded the Driving Simulator Laboratory in collaboration with other faculty in the department. His key research interest lies in studying risk in the transportation infrastructure system as it relates to highway safety, travel time uncertainty, as well as natural and man-made disasters. His projects have been funded by the United States National Science Foundation, Federal Highway Administration and the Strategic Highway Research Program of the Transportation Research Board.