Šarani Tunnel

The electrical and signalisation installation works at Šarani Tunnel were carried out in 2016-2017, on the Ljig – Preljina section of the Belgrade – South Adriatic motorway, under investors Energotehnika Južna Bačka and Energoprojekt Oprema. The project involved complete electrical and mechanical equipping of the tunnel and Preljina and Takovo interchanges.

Assembly, installation and connection of all necessary equipment and materials for the following systems in the tunnel: fire alarm, SOS intercom system, speaker system, access detection, video surveillance, air quality and flow control, radio communication system, meteorological data acquisition, optical network with active equipment, system for measuring vehicle dimensions at motorway entrances, metal structures and gantries with changeable video and other traffic signalisation, traffic lights, antenna poles. All the above equipment, as well as lighting and power supply (substation, diesel generator, UPSs) in the tunnel and in other tunnels in the section, as well as on Takovo and Preljina interchanges, are connected in the integrated management of Ljig–Preljina section.

As the major infrastructure project on Belgrade–South Adriatic motorway, Šarani Tunnel is of great social and economic interest not only for Serbia and Montenegro, but also for other countries in the region that need faster road access to the Adriatic Sea. In addition, the number of traffic accidents that were frequent on the parallel section of Ibar Highway between Ljig and Preljina was significantly reduced.