Influence of the Roundabout Geometry on Its Safety

The Department of Transport Constructions from the Faculty of Civil Engineering of the V B-Technical University of Ostrava is involved in a two-year research project for the Ministry of Transport. The name of the project is the influence of structural elements geometry on the safety and fluency of operation in roundabouts and possibility of rise crashes prediction. This paper presents certain interesting partial results of the research into the crash rate in roundabouts and possible reasons for traffic accidents rise resulting from geometrical layout.