The object of the project is the construction of the bypass of the municipality of Dubenec and the capacity of the existing road I/4, following this bypass, on a four-run motorway road, all category R 22,5/80 in the total length of the main route 4.788 km. The project will be carried out mainly by transit transport outside the continuous development of the municipality of Dubenec and the resulting burden on the population by noise and exhalations will be reduced. The construction of the relocation will also reduce travel time and increase road safety.