The Dutch Air Quality Innovation Programme has concluded after 5-years of research. This project was coordinated by Rijkswaterstaat, the Netherlands’ Directorate-General for Public Works and Water Management. The findings of this project on measures to improve air quality along motorways are now ready for distribution. The know-how has been built up in the course of a series of unique and large-scale practical trials carried out under the innovation programme. The brochure is available here.