The pre-print of the study, ‘Vision-based investigation of road traffic and violations at urban roundabout in India using UAV video: A case study’, was recently uploaded in Transportation Engineering, an Elsevier journal. The paper is authored by Yagnik Bhavsar, Mazad Zaveri, and Mehul Raval of Ahmedabad University, and Shaheriar B Zaveri of Road Safety Automotive Management.