Designing the new city road within the existing road network is a process that requires a wider analysis of traffic and technical parameters so that the new road would fit well into both the existing network and the city area which may often be very limited. This thesis sets out a development of a concept design for a new city road that will connect the area of Trsat and the University Campus (of the City of Rijeka) with the existing Orehovica – Kacjak county road. New road is being designed for the future average annual traffic of 6765 vehicles per day, subject to a further traffic growth of 3% within 20-year design life. These traffic parameters make the road as a ‘class 3’ road and its socio-economic significance categorises it as a state-county road with a speed limit of 50 km/h. Due to fitting into the existing road network, the new road ties in with seven lower-category roads relating to either existing or DPU-envisaged future structures. In addition to the carriageways, the cross-section of the new road also includes soft landscaping and dual cycle lanes with a footway on one side of the road and the footway only on the other side of the road, respectively. Pavement is made of mechanically compacted subbase and two asphalt layers with a total thickness of 35 cm, designed in accordance with the Croatian norm HRN.U.C4.012 for light traffic load. There will be changes to the traffic flow at the intersections caused by the construction of the new road, so the intersection service level is checked by way of Sidra Intersection software.