Increasing train speed in Tehran-Mashhad double-track line up to 160km/h

The passenger train speed in Iran was limited to 120km/h. Because locomotives were diesel and too old. In recent years, Iranian Railways decided to purchase some high-speed locomotives with 160km/h from Alstom Company, and in 2002 a number of Alstom locomotives delivered to the country. On the other hand, the...