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Polatlı–İzmir high-speed railway
Construction of the railway near Dumlupınar
Overview
Status	Under construction
Owner	Turkish State Railways
Locale	Central and western Anatolia
Termini	Ankara Gar, Ankara Province Alsancak, Izmir Province
Stations	7
Service
Type	High-speed rail
System	Turkish State Railways
Services	Alsancak-Ankara Alsancak-Uşak (mixed high-speed and higher-speed rail stock) Afyon-Ankara Alsancak-Konya (higher-speed rail stock) Afyon-Konya (higher-speed rail stock)
Operator(s)	TCDD Taşımacılık
Depot(s)	Halkapınar yard Çiğli siding Güvercinlik yard
Rolling stock	HT65000, HT80000
Technical
Line length	588 km (365.37 mi)
Number of tracks	Double track
Character	High-speed rail
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Loading gauge	UIC standard (Turgutlu-Yenice) TCDD gross gauge (Turgutlu-Alsancak)
Minimum radius	3 500 m (Turgutlu-Yenice) 160 m (Turgutlu-Alsancak)
Electrification	25 kV, 50 Hz AC Overhead line
Operating speed	250 km/h (160 mph)
Maximum incline	16 ‰
Route map Legend Station Istanbul-Ankara HST to Istanbul Istanbul-Ankara HST to Ankara Polatlı-Konya HST to Konya Ankara Afyon Emirdağ (2025) Line to Konya Afyon Ali Çetinkaya (2025) Line to Eskişehir Afyon YHT (2025) Line to İzmir Uşak (2020s) Salihli YHT (2020s) Turgutlu YHT (2020s) Line to Bandırma Kemalpaşa Manisa (2020s) İZBAN Line to Aliağa Menemen (2020s) Çiğli (2020s) Otogar (2020s) İzmir (2020s)

The Polatlı–İzmir high-speed railway is a 588 km (365.37 mi) long high-speed railway currently under construction in Turkey. Once completed, it will be the longest high-speed railway in the country, surpassing the Istanbul-Ankara HSR which holds the title since 2014.

The railway will split from the Polatlı-Konya high-speed railway about 27 km (17 mi) south of Polatlı junction, where the Polatlı-Konya HSR splits from the Istanbul-Ankara HSR, and head west to Afyonkarahisar, then it will parallel the Izmir-Afyon railway to Menemen, where it will join the railway just north of İzmir, to eventually terminate at Alsancak railway station. Travel times between Ankara-Afyon and Ankara-Izmir are expected to be 1h 30min and 3h 30min, respectively.

Construction of the initial section began in 2012, but was suspended in 2018 when almost 50% of the works had been completed on some sections. The construction was restarted in 2022, and planned to be completed in 2027.

Sections and speeds

Constructions are divided into six sections starting from the split point:

Notes

1. Joins Ankara-İstanbul high speed railway at Polatlı.
2. Basmane for some services.

References

1. Polatli-Izmir high-speed railway – tr.railturkey.org
2. "Construction of Ankara – Izmir high speed line restarts". Railway Gazette International. Retrieved 2022-09-16.
3. ANKARA-İZMİR HIZLI TREN HATTI 2027'DE HİZMETE GİRECEK (in Turkish), T.C. Ulaştırma ve Altyapı Bakanlığı, retrieved 2024-01-26

v t e High-speed rail in Turkey
Service	Yüksek Hızlı Tren
Lines	Ankara–Istanbul high-speed railway Ankara–Sivas high-speed railway Konya–Karaman higher-speed railway Polatlı–Konya high-speed railway Under construction/ Planned Bandırma–Osmaneli higher-speed railway Polatlı–Izmir high-speed railway Istanbul-Kapıkule higher-speed railway Bilecik - Bandırma-Balıkesir high-speed railway Mersin–Adana–Gaziantep higher-speed railway Sivas–Kars high-speed railway Ankara–Kayseri high-speed railway Karaman-Ulukışla higher-speed railway Konya–Antalya high-speed railway
Stations	Ankara Bilecik Bozüyük Polatlı
Rolling stock	TCDD HT65000 TCDD HT80000
Accidents	Pamukova train derailment Marşandiz train collision
Lines in italics are under construction.

• High-speed railway lines in Turkey
• Transport infrastructure under construction in Turkey
• Polatlı
• Menemen District
• Transport in Ankara Province
• Transport in İzmir Province
• High-speed railway lines under construction