Drs. Ing. J. (Johan) Vos


Johan is a parttime-PhD student at Transport and Planning. He has a Bachelor’s degree in Traffic Engineering and a Master’s degree in Environmental and Infrastructure Planning.

At the executive agency of the Ministry of Infrastructure and Water Management (Rijkswaterstaat) he is the editor of the Dutch geometric design guidelines for freeways (ROA).


His PhD research aims to get a better understanding of the relationship between infrastructure and the driver, or in other words the ‘Human Factors’. To be of value to road design guidelines, the insights in Human Factors need to be operationalised, which is the main topic of his research. His research focusses on horizontal curves in freeways and speed-choice of drivers in particular.

Vos, J., Farah, H., & Hagenzieker, M. (2020). How do dutch drivers perceive horizontal curves on freeway interchanges and which cues influence their speed choice? IATSS Research. doi: https://doi.org/10.1016/j.iatssr.2020.11.004

Vos, J., Farah, H., & Hagenzieker, M. (2021). Speed behaviour upon approaching freeway curves. Accident Analysis & Prevention, 159, 106276. doi: https://doi.org/10.1016/j.aap.2021.106276

Vos, J., de Winter, J., Farah, H., & Hagenzieker, M. (2023). Which visual cues do drivers use to anticipate and slow down in freeway curve approach? An eye-tracking, think-aloud on-road study. Transportation Research Part F: Traffic Psychology and Behaviour, 94, 190-211. doi: https://doi.org/10.1016/j.trf.2023.01.021

Editor of Dutch geometric freeway design guidelines at Rijkswaterstaat (ROA)

Johan Vos

PhD Researcher

  • J.Vos-1@tudelft.nl
  • Faculty of Civil Engineering and Geosciences

    Building 23

    Stevinweg 1

    2628 CN Delft

    Room: 4.29


    Thu morning - Fri