Survey, feasibility, detailed design and engineering services of the 32 Km of Esenyurt – Avcilar Beylikduzu Metro Line in Istanbul with 16 underground stations. Total length of tunnel is 30.5 km with a lined cross sectional area of 31 m2. This project includes a viaduct with a length of 842.50

Survey, feasibility, preliminary and detailed design, and engineering services of 654.74 km double-track highspeed 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 10 stations, 840 culverts, 368 underpasses, 73 overpasses, 188 bridges and viaducts with

Survey, feasibility, preliminary and detailed design, feasibility and engineering services of 339.35 km double-track high-speed railway line with 250 km/h operation speed. Minimum curvature radius is 3,500m, and maximum vertical slope is 1.6%. The project includes 9 stations, 453 culverts, 168 underpasses, 31 overpasses, 65 bridges and viaducts with a

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

Survey, feasibility, preliminary and detailed design, and engineering services of 150 km double-track highspeed 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, 156 culverts, 86 underpasses, 8 overpasses, 36 bridges and viaducts with a

Survey, Feasibility, Preliminary and Detailed Design and Engineering Services of 300 km double-track highspeed 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 4 stations, 336 culverts, 48 underpasses, 37 overpasses, 140 bridges and viaducts with the