My thesis deals with the regional road R1-206 Kranjska Gora – Ruska cesta – Vršič – Trenta – Bovec, better known as the Vršič road. It is one of the most beautiful panoramic mountain roads in Slovenia and it has a historic, touristic, broader demographic and national economic significance. When planning mountain roads, one has to follow one simple rule – we should avoid landslide areas and avalanche areas. However, the Vršič road has been boldly planned and its maintenance through history has been irregular and unsystematic. In addition to the water erosion and destructive erosion, Vršič road’s biggest problem is the snow erosion. According to the avalanche cadastre for Slovenia, the regional road R1-206 is jeopardized by at least 27 avalanches which are the main reason for the road not being passable up to 6 months in the period of normal winters. Due to the importance of the Vršič road and these long-term roadblocks, there have been several studies and projects made over the last few decades about the transportability of the road on different levels, which will be further presented and analyzed in this thesis. We have discovered that the only solution for the round the year transportability of the road is the construction of a tunnel with certain safety measures on or by the existent road. We have compared the different versions of the tunnels and in the end presented our findings.
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