Survey, feasibility, detailed design and engineering services of 49.2 km 4 lane (2 x 2) highway between Gülyalı (Ordu) -
Kayserı Sefaatlı Hıgh Speed Raılway
Survey, feasibility, preliminary and detailed design and engineering services of 158.78 km double-track high-speed railway line with 250 km/h operation speed. Minimum curvature radius is 3,500 m, and maximum vertical slope is 1.6%. The project includes 3 stations, 146 culverts, 58 underpasses, 16 overpasses, 12 bridges and viaducts with the total length of 2.535 km, 8 cut & cover tunnels with the total length of 1.478 km, 10 bored tunnels with total length of 8.174 km, electrification, signalization, and telecommunication systems.