Hygienic Train Toilet

Themes: Life Science & Health, Structural Engineering, Infrastructure & Mobility / Transport

Early stage commercial environment application

A TRL is a measure to indicate the matureness of a developing technology. When an innovative idea is discovered it is often not directly suitable for application. Usually such novel idea is subjected to further experimentation, testing and prototyping before it can be implemented. The image below shows how to read TRL’s to categorise the innovative ideas.

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Enhancing train toilet hygiene, so that travelling by train becomes a more attractive, or specifically that the train traveller will rate the train toilet as sufficient.


The 'research through' design of the train toilet is based on approximately 230 observations of users and questionnaires completed by about 1500 train travellers.


At the end of 2015 or beginning of 2016 both the Phd Thesis Defense as well as the key elements of the design proposal with specifications in the modernization of the double decker trains (Virm) will take place.

Dr. ir. Johan Molenbroek


Ir. Mariah Loth

Prof. ir. Daan van Eijk