EVIO manual for research into the road safety effects of infrastructural measures. This manual proposes a method to evaluate the road safety effects of infrastructural measures. The manual is initially intended for regional road authorities who (will) actively participate in the Study of Safety Effects Infrastructural Measures (EVIO) programme of the Association of the Provinces of the Netherlands (IPO). The method that is proposed in this manual forms the basis for carrying out road safety research into the effects of the following infrastructural measures: * the cost-effective measures (KEM) package consisting of eight measures; * overtaking prohibition and separation of driving directions; * road humps at traffic signals; * intersections with a bicycle track crossing the side road; * textured shoulder (high friction surface); * (turbo) roundabouts. The manual will discuss the background of the EVIO programme, it will describe the possible research types, and will look at the data that is required to investigate the road safety effects.
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