Resumen
The main objective of the article is to assess the potential impact of the completed Via Carpatia route on changes in the accessibility of regions on a European scale. The model of potential accessibility in the international approach was used (sources and destinations at the NUTS3 level). The accessibility analysis showed that the range of impact of the investment is extensive and extends from the north of the continent to central Turkey, and the effectiveness of construction of individual sections is strongly dependent on the simultaneous investment in neighboring countries.