The task of this thesis is to create a conceptual design of a new collective road that will be partly as a completely new, and partly as a reconstruction of the existing road. Preliminary design is presented through the construction situation, traffic situation, longitudinal cross-section, characteristic cross-sections, and at the end of the cost list of works. In order to design a new collective road, it is necessary to meet the conditions set by the urban development plan Sabljaci (UPU 8). In addition, a proposal for the reconstruction of the county road ŽC 3218 between the new and existing intersection and a proposal for the reconstruction of the existing coastal road were made. For both roads, the reconstruction proposal was made in the form of a construction and traffic situation. The county road ŽC 3218 would be reconstructed by adding a sidewalk on one side of the road. Adding sidewalks to greatly increases pedestrian safety. On the existing coastal road, it is planned to widen the sidewalk from 1,6 to 2,6 m and convert the road surface into two bicycle lanes, one for each direction 1,75 m wide. Traffic on the coastal street would be prohibited for all vehicles, except for tenants . All motor traffic from the coastal road would be redirected to the new collective road, thus giving the coastal road the function of a pedestrian and bicycle zone. The new intersection of the new collective road and the county road is planned as a three-way junction. Also, the intersection of the junction of the new collection road and the existing coastal road is planned as a three-way junction. The reconstructed intersection of the new collection road, the county road and the approach to the Sabljaci Camp rest area is planned to be four-way junction.