Project summary
The project involved the reconstruction of the intersection of Jadranska Avenue and Dubrovnik Avenue (Roundabout Remetinec) in the city of Zagreb.
The project activities included retaining the existing roundabout with three driving lanes (basic roundabout), constructing additional right road buffers from the basic roundabout to all four driveways, and building a 280 m long underpass in the east-west direction below ground level with two separate tunnel pipes and protection from groundwater. Furthermore, the existing tram lines and contact line system in the area of the intervention were reconstructed, alongside the entire communal infrastructure, which was either reconstructed or upgraded, including water supply and drainage, gas lines, street lighting, electrical grid, and telecommunications network.
The intersection of Jadranska Avenue and Dubrovnik Avenue – Remetinec Roundabout is located in the southwestern part of the city and is one of the busiest city traffic hubs. The external diameter of the rotor is 74 meters long, which makes it the largest roundabout in the city of Zagreb. The construction of the underpass on Jadranska Avenue / Dubrovnik Avenue enabled unobstructed passage of vehicles in the east-west direction, thereby relieving the roundabout from traffic coming from that direction. The intersection itself, all the entrances, and the roundabout in front of the entrance were equipped with traffic lights. Driving through the roundabout is additionally guided by vertical signalization at the entrance. This traffic solution eliminates the intertwining of cars in the roundabout, thereby reducing the possibility of traffic accidents. The project also included the relocation and construction of a new fiber optic distribution network, water utility infrastructure, gas pipelines, public lighting, landscaping, and other related works.
Project results
The objective of the reconstruction of the Roundabout Remetinec was to increase its traffic flow and safety. This was achieved by relieving part of the roundabout traffic in the east-west direction and eliminating the interweaving of vehicles between lanes in the roundabout.
The reconstruction of the roundabout Remetinec enabled unobstructed traffic flow in the east-west direction, relieving the roundabout of that part of the traffic. This resulted in increased traffic flow and shortened travel time required to pass the roundabout. The project also installed traffic lights at the intersection, at all entrances, and at the roundabout in front of the entrance, as well as vertical signalization at the entrance to the roundabout. These measures eliminated the interweaving of vehicles between lanes in the roundabout and increased traffic safety. By improving traffic flow and safety, the reconstruction of the roundabout Remetinec provided better access to the TEN-T road network and enhanced the connection and mobility of people and goods throughout Croatia and with the rest of the EU.
