The operation concerns the construction of a level roundabout and a side network on the National Road of Larissa Kozani, which is part of the country’s secondary Trans-European Transport Network (TEN-T) and, in particular, the contribution of the E.O with the envisaged ring road of Tyrnavos, at the NE entrance of the settlement. The total length of the intervention is 650 m and includes the necessary adjustments to the existing roads, the construction of the required side roads and the construction of part of the new perimeter road of the settlement 280 m from the point of confluence with the roundabout. Upon completion, it is expected to improve traffic management and thus improve road safety.