Elif Ensari is a research scholar at NYU’s Marron Institute of Urban Management, where she works with the Transportation and Land Use group. Her research focuses on the costs of building passenger rail, ridership estimation, Transit-Oriented Development, and the walking and cycling infrastructure of New York City. She contributes to the Transit Costs Project, which investigates why rail projects in some countries are delivered more affordably than others, with case studies spanning Istanbul, Boston, New York, Italy, and Sweden, with new cases currently underway.