Selection of the variant of highway based on the territory susceptibility to landslides – model area D1/R3 highway nearby Oravský Podzámok

The article focuses on the issue of routing lineside constructions in Slovakia. The chosen section of the planned lineside construction is the future section of the R3 expressway starting at the D1/R3 highway intersection in Hubová up to Oravský Podzámok. The selected road section was investigated based on the built-up model of the territory's susceptibility to landslides. Multivariate statistical analysis was used to determine the susceptibility of the territory to landslides, the success of which was determined based on ROC curves. Four variants were compared, of which two surface and two tunnel variants with the Dolný Kubín tunnel. By comparing the routes of the individual variants that pass through the landslide area, the order of suitability of the highway variants was determined in terms of slope stability. Determining the conflict of interests of line constructions with sites of susceptibility to landslides is very important in the environmental impact assessment process. Prediction of probable negative impacts of construction is one of the basic missions of this process. Missing data, whose acquisition extends the processing time for the project and the funding of associated expenditures, is a common drawback when building prediction models in the field of road construction.