SUMMARY
The effects of a cyclone which affected Serbia and surrounding countries, between ?pril-September 2014, with extreme amount of heavy rain (referred to as the “100-year flood”, even more than that) caused catastrophic floods in affected areas in West and East Serbia, as well as great and numerous instabilities (over 2000 major and minor landslides, rockfalls, mudflow, flash flood sediments, river banks erosion and similar) which inflicted enormous damage on infrastructure, residential and commercial buildings which are estimated at tens of millions € only on state road network.The most devastating effects and the material damage caused by the cyclone affected the State road network, commercial properties as well as individual households in the region of Valjevo, ?rupanj, Ljubovija, Mali Zvornik, Loznica and Tekija. In accordance with that, in this paper authors present (analytically and illustratively), the assessed scale of instability development and occurred damages (at the extent of jeopardized areas of Serbia, especially at the zone of its road infrastructure), caused by cyclone effects as well as proposals WHAT SHOULD BE DONE to reduce risk factors, respectively vulnerability of the terrain, in order to prevent future similar events which is obviously interesting for our road public.