Capital Express (Turkey) 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 replaced all intercity trains on the line. The Capital Express was the fastest of the six trains, making limited stops only in large cities. The train would complete its journey in just over four hours and in the Eskişehir Province, trains would reach conventional speeds of , which still hold the record for fastest conventional train service in Turkey. When the high-speed rail service was opened between Ankara
History of Ankara tetrarchy, a system of multiple (up to four) emperors introduced by 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 militarised in response to the invasions and instability of the town.