Part of the CEDR Transnational Road Research Programme Call 2013: Safety is the research project European Sight Distances in perspective – EUSight. The objective of this research project is to conduct a detailed examination of the subject of stopping sight distance (SSD) and its role and impact on highway geometric design, taking into account differences (and similarities) between EU Member States. Sight distance (SD) means the unobstructed visibility that is needed to be able to safely and comfortably perform the driving task and to avoid conflicts or collisions with objects or other road users. Stopping sight distance (SDD) means the distance over which a driver needs to be able to overlook the road to recognize a hazard on the road and stop his vehicle in time. This report describes the result of Work package 2 of the EUSight project. It describes both an international literature study and a review of road design guidelines for motorways of a selection of EU member states on SD and SSD related aspects. This research considers stopping sight distance from different (related) aspects: human factors (‘the driver’), road characteristics, vehicle characteristics and conditions (like wet, darkness or environment). (Author/publisher)
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