Marjan Hagenzieker

Marjan Hagenzieker is a Professor at Delft University of Technology (TU Delft) in the Department of Transport & Planning under the Faculty of Civil Engineering and Geosciences. She holds a PhD from Leiden University and specializes in traffic safety, particularly focusing on road user behavior, distraction, vulnerable road users (e.g., cyclists, elderly), and interactions between road users and automated vehicles. Her research integrates psychological and engineering perspectives to improve road safety.

**Education**: PhD in Experimental Psychology (Leiden University), MSc in related fields (not explicitly stated).

**Research Interests**: Road safety effects of transport systems, driver/road user behavior, automated vehicles, road infrastructure design, and cyclist/pedestrian safety. She leads the Traffic and Transportation Safety Lab and supervises numerous PhD students, including recent works on automated vehicle HMIs, cyclist interactions, and freeway curve safety.

**Teaching**: Courses include Traffic Safety and contributions to the online Delft Road Safety Course. She also teaches modules in the Master of Transport, Infrastructure, and Logistics (TIL) program.

**Recent Projects**: Co-investigator in SAMEN (mixed traffic automation), AfroSAFE (road safety in Africa), and MEDIATOR (driver-automation mediation). She is an editorial board member of Transportation Research Part F and IATSS Research.

**Grants & Labs**: Involved in EU-funded projects and part of TU Delft’s DAIMoND Lab and Automated Driving & Simulation Lab. Ancillary roles include membership in the CBR Supervisory Board (2024–2026).