Prior to this, he was a post-doctoral researcher at Cornell University. He finished his PhD studies in Civil and Environmental Engineering Department at the University of California, Davis. His expertise is in the areas of transportation systems analysis, transportation economics and modeling, and energy policy. Dr. Rouhani has been involved in a range of local, national, and international research projects related to these topics. His research has been published in several academic journals, including Sustainability, Renewable and Sustainable Energy Reviews, Journal of Transport Geography, Environmental Modeling and Software, Energies,