Our work

'Pluim Snelweg'

With the expansion of the road infrastructure in the Netherlands, there is a growing need to assess air quality along motorways. The 'Pluim Snelweg' (Plume Motorway) model supports these calculations in accordance with the statutory Measurement and Calculation Regulations (Meet en Rekenvoorschrift).

The model is used to assess air quality at the sites of infrastructure projects, such as the second Coen Tunnel, the new Benelux Tunnel West-bank link, and the North-East Corridor.

'Pluim Snelweg' under licence

Since TNO does not have the capacity to carry out all the studies, it has been decided to market the model. In consultation with Rijkswaterstaat*, the decision has been taken to allow specialised engineering consultancy firms to use the model under licence. TNO has produced a course book and trained the staff of the firms, and also provides support through a helpdesk and annual updates. Where appropriate, TNO works closely with the engineering consultancies, ensuring that information-sharing processes continue to work effectively and that improvements are made to the Pluim Snelweg model on a continuous, demand-driven basis.

Improving air quality

TNO is also working on measures to improve air quality along motorways. Examples are screens that dilute emissions more effectively, and the development of methods for dynamic speed control to improve traffic flow - a measure that also tackles air pollution, noise and traffic congestion. * Rijkswaterstaat is part of the Dutch Ministry of Infrastructure and the Environment, and is responsible for the design, construction, management and maintenance of the main infrastructure facilities in the Netherlands.

Sander Jonkers MSc


Sander Jonkers MSc

  • modelling air quality

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