Study for converting seven road intersections into roundabouts on the Thessaloniki–Edessa road

Summary

The tender concerns study and design services to assess the conversion of seven at-grade intersections on the Thessaloniki–Edessa road into roundabouts. The intersections are in the areas of Sindos, Anchialos, Gefyra, Chalkidona, Koufalia and Paralimni; all interventions must remain within the existing infrastructure’s expropriation boundary. The aim is to improve intersection operation, road safety, capacity and service levels. The estimated contract value is EUR 895,000 and the contract duration is 24 months. Offers will be evaluated on technical proposal quality (70%) and price (30%). A tender guarantee is required; its details must be checked in the tender documents. The submission deadline is 20 November 2026 at 11:00, and bids must remain valid for 16 months.