In this master thesis we analysed the area east of Tolmin city, located between the villages Poljubinj and Žabče, where we planned a new road infrastructure or reconstruction of the existing roads. By defining new road connections we want to provide better connectivity of the discussed villages, improve access to the municipality centre and ensure the implementation of new planned tourist activities. For the purpose of planning new road infrastructure we analysed the wider and narrower area of planning. The goals for designing a new road were set based on the analyses. Then we constructed several possible courses of the new road. The best option of the road was chosen based on predefined evaluation criteria: road length, maximum road slope, correspondence of the planned road with the existing ones, valid land use and number of demanding construction works. The combination of road sections with the highest evaluation comprises the optimal road route. The final route was then programmatically detailed by editing some geometrical elements and adding two sections of the road. The final proposal for the new road presents the optimal traffic regulation, meeting the requirements of local people and visitors of the area.