In single-vehicle and emergency lane accidents on motorways, the edgeline is crossed, either with or without the intention to do so. Consequently, application of profiled road markings may help to reduce the number of those accidents. The visibility of profiled road markings on a wet road is as good as or even better than on dry road surfaces and at the least as good as the visibility of conventional road markings. Moreover, the acoustic/`haptic' functioning of profiled marking may result in an additional warning while crossing. In this study the effects of profiled markings on the lane keeping behaviour of road drivers in the right motorway traffic lane are investigated. The report gives the results of behavioural observations in the before period at one location with a dry road surface, both in daytime and nighttime conditions. (A)
Samenvatting