Capital Express (Turkey) of the Istanbul-Ankara high-speed railway was opened and Yüksek Hızlı Tren high-speed passenger service became the pride of the TCDD. On 13 March 2009, the Capital Express was shortened by to Eskişehir and served as an extension of the YHT train service to Istanbul. On 31 January 2012, the Capital Express was discontinued due to the rehabilitation of the railway in Istanbul to accommodate new high-speed rail service. Capital Express (Turkey) The Capital Express () was one of the six daily intercity trains operating between Istanbul and Ankara on the Istanbul-Ankara railway before the Yüksek Hızlı Tren high-speed train service
Ankara Diocletian (284–305), seems to have engaged in a substantial programme of rebuilding and of road construction from Ankara westwards to Germe and Dorylaeum (now Eskişehir). In its heyday, Roman Ankara was a large market and trading center but it also functioned as a major administrative capital, where a high official ruled from the city's Praetorium, a large administrative palace or office. During the 3rd century, life in Ancyra, as in other Anatolian towns, seems to have become somewhat militarized in response to the invasions and instability of the town. The city is well known during the 4th century as a