In 2016, we were monitoring the effectiveness of mitigation measures implemented to prevent traffic related bear mortality along sections of the main road Ljubljana – Kočevje and railway sections between Ljubljana – Postojna (Rakek) and Postojna – Prestranek. We were glad to observe that the drivers reduced the speed of vehicles for ca. 8 km/h, when passing activated dynamics traffic signs. The observed vehicles speed reduction in year 2016 confirmed the positive impact of dynamic traffic signs on drivers’ behaviour on roads. Furthermore, video surveillance of approaching wildlife confirmed that these sections with dynamic sign systems had been properly selected. We filmed a large number of wildlife in the vicinity of road. Brown bear was observed twice very close to the main road at Jasnica. With future monitoring we will evaluate further aspects of mitigation measures effectiveness for reducing bear mortality in traffic.