Nasses Laub sowie Reif-, Eis- und Schneeglätte sind vor allem auf gewölbten Fahrbahnen besonders gefährlich
Trees lose their leaves in the cold season. Moisture settles naturally on these leaves and freezes at appropriate temperatures. Therefore, especially at avenues, the risk of icy roads is very high. An additional risk factor is the strong curvature of the roadway, as this promotes the risk of "skidding". The proximity to the trees can therefore quickly be fatal in winter.