Ankara-Istanbul high-speed railway, the railway is being built in Turkey between Ankara and Izmir city.
The 508 km long railway, starting from Ankara's Polatlı district, will end in Konak district of Izmir. High speed train services will be organized by TCDD, which will be double lines, electrical and signalized, and that travels 250 km per hour.
“The Polatlı-Afyonkarahisar section is planned to be completed by the end of 2021 and the Afyonkarahisar-İzmir section by the end of 2022. Rail travel time of 14 hours between Ankara and Izmir will decrease to 3 hours 30 minutes when the High Speed Train line is opened.
However, eight sinkholes were detected in Sivrihisar district of Eskişehir, 1,5 km south of the train line. The Chamber of Geological Engineers affiliated to the Union of Chambers of Turkish Engineers and Architects (TMMOB) warned that the Ankara - İzmir High Speed Train Project, planned to be completed in 2022, has geological risks.
In the region between Sivrihisar (Eskişehir) district Sığırcık, Göktepe, Kaldirkoy and Yenikoy villages, 2 sinkholes with diameters between 50 m and 0.5 m and depths between 15 m and 8 m have occurred in the last few years. According to the observations made in the field and later studies on satellite images; It is necessary to take urgent precautions for this region, where the pothole is formed, to be located just 1.5 km south of the Polatlı-Afyon part of the Ankara-İzmir High Speed Train Route, which is under construction.
The total cost of the railway line is planned to be TL9,3 billion TL.