The 31 km. construction of Polatlı - Sivrihisar road project is a divided road including bridges, junctions, overpasses and facility trenches. In this project, 3,000,000 m³ of earth works, 369,000 tons of subbase, 453,000 tons of mechanic stabilization base, 450,000 tons of bituminous hot mix asphalt and 35,000 m³ tons of concrete works were realized. Ankara - Polatlı - Sivrihisar route witnessing daily a dense traffic was constructed considering the geological and topographical difficulties of the area.