Istanbul–Ankara railway the undertaking, von Siemens formed the Ottoman Anatolian Railway (CFOA) on 4 October 1888 to build and operate the railway for 99 years. The CFOA started construction further from Izmit in May 1889 and purchased the Istanbul-Izmit railway for 6 million CHF. Istanbul–Ankara railway The Istanbul–Ankara railway () is a long electrified railway in Turkey. The line connects Turkey's largest city, Istanbul, to the capital and second largest city, Ankara; making it one the busiest railways in the country in terms of passenger and freight rail traffic. The railway runs parallel to the Ankara-Istanbul high-speed railway and in several sections,
Ankara Turkish as "Engürü". The form "Angora" is preserved in the names of breeds of many different kinds of animals, and in the names of several locations in the US (see Angora). Ankara has a hot-summer Mediterranean climate (Köppen "Csa") which closely borders a hot summer Mediterranean continental climate (Köppen "Dsa"). Under the Trewartha climate classification, Ankara has a middle latitude steppe climate ("BSk"). Due to its elevation and inland location, Ankara has cold, somewhat snowy winters and hot, dry summers. Rainfall occurs mostly during the spring and autumn. Ankara lies in USDA Hardiness zone 7b, and its annual average precipitation